Non-Precipitation Watch, Warning, Advisory 08:04:09.2875850

...FROST ADVISORY HAS EXPIRED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ALLOWED THE FROST
ADVISORY TO EXPIRE.

NO ADDITIONAL FROST DEVELOPMENT WILL OCCUR THIS MORNING AND FROST
WILL BEGIN TO MELT IF IT HAS NOT ALREADY DONE SO.

Non-Precipitation Watch, Warning, Advisory 21:16:41.7583499

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT
FRIDAY...

* TEMPERATURES...WILL FALL INTO THE LOW TO MIDDLE 30S.

* IMPACTS...SENSITIVE VEGETATION MAY BE DAMAGED BY FROST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

Non-Precipitation Watch, Warning, Advisory 15:16:00.5441040

...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 8 AM CDT FRIDAY.

* TEMPERATURES...WILL FALL INTO THE LOW TO MIDDLE 30S.

* IMPACTS...SENSITIVE VEGETATION MAY BE DAMAGED BY FROST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

Test Message 11:00:31.3923469

THIS IS THE WEEKLY TEST OF THE WXWARN1 ALERT SYSTEM THIS IS ONLY A TEST

Flood Potential Outlook 18:34:06.6617754

...ADVANCED HYDROLOGIC PREDICTION SERVICE...AHPS...ENABLES
THE NATIONAL WEATHER SERVICE...NWS...TO PROVIDE LONG-RANGE
PROBABILISTIC RIVER OUTLOOKS...

THE VALUES IN THE TABLE BELOW ARE VALID APR 30 - JUL 29 2012

IN THE TABLE BELOW...THE 90 THROUGH 10 PERCENT COLUMNS INDICATE
THE CHANCE THAT A LOCATION ON A RIVER COULD RISE ABOVE THE LISTED
STAGE LEVELS IN THE NEXT 90 DAYS.

FOR EXAMPLE: THE KANKAKEE RIVER AT DUNNS BRIDGE HAS A FLOOD STAGE OF
10 FEET. WITHIN THE NEXT 90 DAYS...THERE IS A 70 PERCENT CHANCE
THE RIVER WILL RISE ABOVE 5.6 FT.

LOCATION FS (FT) 90% 80% 70% 60% 50% 40% 30% 20% 10%
-------- ------- --- --- --- --- --- --- --- --- ---
KANKAKEE RIVER
DUNNS BRIDGE 10.0 4.5 5.0 5.6 6.0 6.8 7.4 7.9 8.6 9.3
KOUTS 11.0 5.4 6.0 6.6 7.0 7.9 8.6 9.0 9.7 10.5
SHELBY 9.0 5.7 6.7 7.1 7.6 8.0 8.7 9.6 10.1 11.3
MOMENCE 5.0 2.0 2.7 2.8 3.1 3.5 3.9 4.2 4.6 6.2
WILMINGTON 6.5 2.2 2.6 2.9 3.8 4.2 4.6 5.2 5.7 7.0

SUGAR CREEK
MILFORD 18.0 7.8 10.9 13.7 16.4 17.2 18.5 19.2 20.2 20.8

IROQUOIS RIVER
RENSSELAER 12.0 5.6 7.5 8.2 8.9 9.3 10.0 11.6 12.1 13.7
FORESMAN 18.0 8.1 10.3 12.0 12.9 13.6 14.7 16.0 17.3 19.2
IROQUOIS 18.0 7.6 10.2 11.6 13.7 14.8 15.9 17.5 20.7 22.9
CHEBANSE 16.0 5.2 6.7 7.7 8.1 9.3 10.3 12.5 13.4 16.2

DES PLAINES RIVER
RUSSELL 7.0 3.2 4.1 5.2 5.7 6.0 6.4 6.6 7.2 7.6
GURNEE 7.0 2.3 2.9 3.2 3.6 3.9 4.6 5.4 6.2 7.0
DES PLAINES 5.0 1.3 1.6 1.8 2.0 2.1 2.4 2.8 3.3 5.8
LINCOLNSHIRE 12.5 7.7 8.0 8.3 8.7 9.3 9.7 10.4 11.0 12.0
RIVERSIDE 7.0 3.4 3.6 4.1 4.4 4.9 5.2 5.5 6.1 6.6

FOX RIVER
ALGONQUIN TAILW 9.5 6.0 6.8 7.1 7.4 8.0 8.7 9.0 9.4 12.1
MONTGOMERY 13.0 11.6 12.0 12.2 12.5 12.6 12.7 12.9 13.1 13.7
DAYTON 12.0 6.6 7.8 8.4 8.7 9.3 9.7 10.6 11.5 13.0

EAST BR DU PAGE RIVER
BOLINGBROOK 19.5 17.0 17.9 18.2 18.9 19.2 19.5 19.8 20.2 20.9

DU PAGE RIVER
SHOREWOOD 6.5 3.8 4.2 4.6 4.8 5.2 5.6 5.8 6.2 7.0

MAZON RIVER
COAL CITY 12.0 4.3 5.1 6.0 7.0 8.2 9.1 9.6 10.3 11.7

VERMILION RIVER
PONTIAC 14.0 4.5 5.0 5.8 6.6 7.4 7.9 9.4 11.0 14.5
LEONORE 16.0 6.1 7.4 8.2 10.0 10.9 11.9 13.3 15.4 17.6

THORN CREEK
THORNTON 10.0 3.9 5.3 5.8 6.5 7.3 8.0 9.1 10.4 11.6

HART DITCH
DYER 12.0 3.8 4.5 4.7 4.9 5.6 6.5 7.0 7.5 8.0

LITTLE CALUMET RIVER
MUNSTER 12.0 8.7 9.6 9.9 10.3 10.7 11.3 12.1 13.4 17.1
SOUTH HOLLAND 16.5 8.5 9.8 10.3 11.1 11.7 12.4 13.6 14.0 14.6

ILLINOIS RIVER
MORRIS 16.0 5.9 7.6 8.6 9.5 11.5 12.0 14.2 15.7 19.2
OTTAWA 463.0

LA SALLE 20.0 12.2 14.2 15.2 16.8 18.7 19.6 21.8 23.4 25.0

KISHWAUKEE RIVER
BELVIDERE 9.0 2.2 3.0 3.5 3.7 4.1 5.1 5.6 6.3 8.4
PERRYVILLE 12.0 6.3 7.4 7.7 8.2 8.8 9.5 10.5 12.2 13.5

SOUTH BRANCH KISHWAUKEE RIVER
DE KALB 10.0 3.7 4.6 4.8 5.4 6.0 6.6 7.2 8.2 9.6

ROCK RIVER
ROCKTON 10.0 4.4 4.4 4.4 4.9 5.4 6.1 6.7 7.8 9.5
LATHAM PARK 10.0 5.0 5.0 5.0 5.3 5.8 6.3 6.8 7.7 9.9
ROCKFORD 9.0 3.0 3.0 3.0 3.1 3.1 3.2 3.3 3.6 4.9
BYRON 13.0 6.8 6.9 7.2 7.6 8.3 9.0 9.9 10.5 13.7
DIXON 16.0 9.1 9.3 9.4 9.8 10.3 11.4 12.8 14.2 16.9

PECATONICA RIVER
SHIRLAND 12.0 5.2 5.8 6.3 6.7 7.2 8.3 8.9 11.7 12.8

THE NATIONAL WEATHER SERVICE CHICAGO OFFICE IN ROMEOVILLE ISSUES LONG
RANGE AHPS OUTLOOKS FOR ALL RIVER FORECAST LOCATIONS. THIS PRODUCT IS
UPDATED MONTHLY AROUND MID-MONTH. THESE OUTLOOKS ARE ISSUED IN
ADDITION TO THE 5 DAY RIVER FORECASTS THAT ARE ISSUED WHEN RIVER
FORECAST LOCATIONS ARE IN FLOOD OR FORECAST TO RISE ABOVE FLOOD
STAGE.

THIS LONG-RANGE PROBABILISTIC OUTLOOK CONTAINS FORECAST VALUES THAT
ARE CALCULATED USING MULTIPLE SEASON SCENARIOS FROM 30 OR MORE YEARS
OF CLIMATOLOGICAL DATA INCLUDING CURRENT CONDITIONS OF THE RIVER...
SOIL MOISTURE...AND 30 TO 90 DAY LONG-RANGE OUTLOOKS OF TEMPERATURE
AND PRECIPITATION.

BY PROVIDING THE COMPLETE RANGE OF PROBABILISTIC NUMBERS...THE LEVEL
OF RISK ASSOCIATED WITH LONG-RANGE PLANNING DECISIONS CAN BE
DETERMINED. THESE PROBABILISTIC FORECASTS ARE PART OF THE NATIONAL
WEATHER SERVICE ADVANCED HYDROLOGIC PREDICTION SERVICE.

VISIT OUR WEB PAGE AT WEATHER.GOV/CHICAGO FOR MORE WEATHER AND RIVER
INFORMATION INCLUDING GRAPHS OF PROBABILISTIC RIVER OUTLOOKS.

Non-Precipitation Watch, Warning, Advisory 04:03:19.1445300

...FREEZE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS CANCELLED THE FREEZE
WARNING.

WHILE TEMPERATURES IN A FEW OF THE TYPICALLY COLDER LOCATIONS WILL
DIP TO AROUND FREEZING EARLY THIS MORNING...A WIDESPREAD FREEZE
IS NO LONGER.

Non-Precipitation Watch, Warning, Advisory 22:00:48.7845552

...FREEZE WARNING REMAINS IN EFFECT FROM 3 AM CDT /4 AM EDT/ TO
8 AM CDT /9 AM EDT/ MONDAY...

* TEMPERATURE...FREEZING OR BELOW FREEZING FROM 28 TO 32 DEGREES.

* IMPACTS...SENSITIVE VEGETATION MAY BE DAMAGED OR KILLED BY THE
FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

Non-Precipitation Watch, Warning, Advisory 15:37:07.5566473

...FREEZE WARNING IN EFFECT FROM 3 AM CDT /4 AM EDT/ TO 8 AM CDT
/9 AM EDT/ MONDAY...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 3 AM CDT /4 AM EDT/ TO 8 AM CDT
/9 AM EDT/ MONDAY.

* TEMPERATURE...FREEZING OR BELOW FREEZING FROM 28 TO 32 DEGREES.

* IMPACTS...SENSITIVE VEGETATION MAY BE DAMAGED OR KILLED BY THE
FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

Test Message 11:00:29.3923271

THIS IS THE WEEKLY TEST OF THE WXWARN1 ALERT SYSTEM THIS IS ONLY A TEST

Radar Outage Notification 14:40:40.5231160

NOUS63 KLOT 171940
FTMLOT
Message Date: Apr 17 2012 19:40:20KLOT WSR-88D RADAR IS BACK ONLINE.

Radar Outage Notification 09:02:30.3222450

NOUS63 KLOT 171402
FTMLOT
Message Date: Apr 17 2012 14:02:02KLOT RADAR WILL BE GOING DOWN SEVERAL HOURS FOR PREVENTIVE MAINTENANCE.

Non-Precipitation Watch, Warning, Advisory 17:50:11.6356889

...WIND ADVISORY WILL EXPIRE AT 6 PM CDT /7 PM EDT/ THIS
EVENING...

WEST WINDS HAD DIMINISHED TO 15 TO 25 MPH WITH GUSTS OF 30 TO
40 MPH DURING THE LATER AFTERNOON. WINDS WILL QUICKLY DROP OFF
WITH SUNSET WITH WINDS BY MID EVENING FROM THE NORTHWEST AT ONLY
AROUND 10 MPH. THUS...THE WIND ADVISORY WILL BE ALLOWED TO
EXPIRE.

Non-Precipitation Watch, Warning, Advisory 15:03:15.5365305

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT /7 PM EDT/ THIS
EVENING...

* TIMING...STRONG WINDS WILL BEGIN TO DIMINISH LATE THIS EVENING.

* WINDS...SUSTAINED 25 TO 35 MPH WITH OCCASIONAL GUSTS OVER 45
MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH...OR
GUSTS BETWEEN 45 AND 57 MPH...ARE LIKELY. WINDS THIS STRONG CAN
CAUSE MINOR PROPERTY DAMAGE UNLESS PRECAUTIONS ARE TAKEN. DRIVING
MAY BE DIFFICULT...ESPECIALLY IN HIGH PROFILE VEHICLES. MOTORISTS
SHOULD BE ALERT AND USE CAUTION.

&&

Non-Precipitation Watch, Warning, Advisory 12:19:13.4390947

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT /7 PM EDT/ THIS
EVENING...

* TIMING...STRONG WINDS WILL CONTINUE THROUGH THE AFTERNOON.

* WINDS...SUSTAINED 25 TO 35 MPH WITH OCCASIONAL GUSTS OVER 45
MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH...OR
GUSTS BETWEEN 45 AND 57 MPH...ARE LIKELY. WINDS THIS STRONG CAN
CAUSE MINOR PROPERTY DAMAGE UNLESS PRECAUTIONS ARE TAKEN. DRIVING
MAY BE DIFFICULT...ESPECIALLY IN HIGH PROFILE VEHICLES. MOTORISTS
SHOULD BE ALERT AND USE CAUTION.

&&

Non-Precipitation Watch, Warning, Advisory 08:29:02.3023658

...WIND ADVISORY IN EFFECT UNTIL 6 PM CDT /7 PM EDT/ THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 6 PM CDT /7 PM EDT/ THIS
EVENING.

* TIMING...STRONG WINDS WILL CONTINUE THROUGH THE AFTERNOON.

* WINDS...SUSTAINED 25 TO 35 MPH WITH GUSTS OVER 45 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH...OR
GUSTS BETWEEN 45 AND 57 MPH...ARE LIKELY. WINDS THIS STRONG CAN
CAUSE MINOR PROPERTY DAMAGE UNLESS PRECAUTIONS ARE TAKEN. DRIVING
MAY BE DIFFICULT...ESPECIALLY IN HIGH PROFILE VEHICLES. MOTORISTS
SHOULD BE ALERT AND USE CAUTION.

&&

Special Weather Statement 04:31:14.1611126

...STRONG WINDS EXPECTED AGAIN THIS MORNING...

WINDY CONDITIONS WILL CONTINUE EARLY THIS MORNING AND INTO THE
AFTERNOON HOURS. SOUTHWESTERLY WINDS OF 20 TO 30 MPH AND GUSTS TO
40 MPH ARE POSSIBLE SHORTLY AFTER SUNRISE AND WILL PERSIST THROUGH
THE LATE MORNING. THESE WINDS MAY BE ENOUGH TO BLOW LOOSE AND
UNSECURED OBJECTS AROUND...ALONG WITH POTENTIALLY MAKING DRIVING
DIFFICULT AT TIMES FOR HIGH PROFILE VEHICLES.

Special Weather Statement 23:07:18.8240561

...SHORT LIVED STRONG WINDS...

STRONG WINDS HAVE DEVELOPED IN THE WAKE OF THUNDERSTORMS THAT MOVED
THROUGH THE REGION THIS EVENING. SOUTHERLY WINDS OF 20 TO 30 MPH AND
GUSTS TO 40 MPH HAVE DEVELOPED AND WILL PERSIST OVER THE NEXT FEW
HOURS. AS OF 11 PM THE STRONGEST OF WINDS ARE IN A CORRIDOR OF
I-39 AND WEST...AND THIS AREA WILL SHIFT EAST THROUGH THE EARLY
OVERNIGHT HOURS. THESE WINDS MAY BE ENOUGH TO BLOW LOOSE AND
UNSECURED OBJECTS AROUND...ALONG WITH POSSIBLY MAKING DRIVING
DIFFICULT AT TIMES ON WEST TO EAST ORIENTED ROADWAYS.

Non-Precipitation Watch, Warning, Advisory 20:24:55.7276005

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS CANCELLED THE WIND
ADVISORY.

Mesoscale Discussion 18:13:31.6495489

AREAS AFFECTED...NRN IL

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 152312Z - 160015Z

PORTIONS OF NRN IL ARE BEING MONITORED FOR A POSSIBLE WW.
CONSIDERABLE UNCERTAINTY REGARDING TSTM INTENSITY/COVERAGE
EXISTS...BUT CONVECTIVE TRENDS ARE BEING CLOSELY MONITORED.

ISOLATED TSTMS HAVE DEVELOPED OVER THE PAST HR SW OF THE CHICAGO
METRO AREA...WITHIN A BROAD LOW-LEVEL WAA REGIME AHEAD OF A STRONG
CNTRL PLAINS CYCLONE. A LACK OF DISCERNABLE MESOSCALE BOUNDARIES IS
LEADING TO LARGELY UNFOCUSED DEVELOPMENT OF NEW
CONVECTION...YIELDING CONSIDERABLE UNCERTAINTY TO EVOLUTION AND
EVENTUAL COVERAGE OF THE POTENTIAL THREAT. HOWEVER...THE ENVIRONMENT
ACROSS THIS AREA IS STRONGLY SHEARED /0-1 KM BULK SHEAR NEAR 30 KTS
PER LOT VWP/...SUPPORTIVE OF DMGG WIND GUSTS AND PERHAPS A TORNADO
SHOULD CONVECTION CONTINUE TO INTENSIFY. FORECAST MODEL GUIDANCE
ALSO INDICATES LLJ SHOULD CONTINUE TO STRENGTHEN THROUGH AT LEAST
04Z...WHILE STORMS WILL HAVE THE POTENTIAL TO REMAIN NEAR SFC-BASED.
INSTABILITY REMAINS SOMEWHAT OF A LIMITING FACTOR /NEAR 1000 J/KG
MLCAPE PER RUC OBJECTIVE ANALYSIS/ AS WIDESPREAD STRATUS OBSERVED ON
VISIBLE SATELLITE LOOP HAS LIKELY LIMITED DIABATIC HEATING SOMEWHAT.
CONVECTIVE TRENDS WILL CONTINUE TO BE MONITORED FOR ISSUANCE OF A
POTENTIAL WW.

..ROGERS.. 04/15/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...LOT...ILX...MKX...DVN...

LAT...LON 41678750 41168765 40588772 40358867 40349024 41179038
42159006 42508929 42448813 42268780 41678750

Non-Precipitation Watch, Warning, Advisory 16:30:35.5884065

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT /2 AM EDT/
MONDAY...

* TIMING...THROUGH EARLY MONDAY MORNING.

* WINDS...SUSTAINED WINDS INCREASING TO 25 TO 35 MPH WITH GUSTS UP
TO 45 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH...OR
GUSTS BETWEEN 45 AND 57 MPH...ARE LIKELY. WINDS THIS STRONG CAN
CAUSE MINOR PROPERTY DAMAGE UNLESS PRECAUTIONS ARE TAKEN. DRIVING
MAY BE DIFFICULT...ESPECIALLY IN HIGH PROFILE VEHICLES. MOTORISTS
SHOULD BE ALERT AND USE CAUTION.

&&

Mesoscale Discussion 16:23:24.5841396

AREAS AFFECTED...E CNTRL MO INTO CNTRL IL

CONCERNING...SEVERE POTENTIAL...WATCH LIKELY

VALID 152122Z - 152245Z

ADDITIONAL WWS ARE LIKELY TO BE ISSUED SHORTLY EAST OF ONGOING
CONVECTIVE LINE ACROSS THE MISSISSIPPI VALLEY.

SQUALL LINE EXTENDING FROM THE MISSOURI OZARKS INTO THE ARKLATEX IS
STILL FLUCTUATING IN STRENGTH...AND INSTABILITY AHEAD OF IT DOES NOT
APPEAR PARTICULARLY STRONG. HOWEVER...IT DOES APPEAR TO BE
SUPPORTED BY SUBSTANTIVE MID/UPPER FORCING FOR UPWARD VERTICAL
MOTION...DOWNSTREAM OF THE LARGE-SCALE TROUGH SLOWLY SHIFTING INTO
THE PLAINS. EMBEDDED WITHIN 50-60+ KT SOUTHWESTERLY DEEP LAYER MEAN
FLOW...POTENTIAL FOR DAMAGING WIND GUSTS...PERHAPS LOCALLY ENHANCED
BY EMBEDDED MESOCYCLONES/ISOLATED TORNADOES... STILL APPEARS LIKELY
TO INCREASE LATE THIS AFTERNOON AND EVENING. A STRENGTHENING
SOUTHERLY 850 MB JET CORE MAY ACCOMPANY THE LINE...AND CONTRIBUTE TO
NORTHEASTWARD ACCELERATION OF THE LINE ACROSS PARTS OF EAST CENTRAL
AND SOUTHEAST MISSOURI INTO CENTRAL AND SOUTHERN ILLINOIS BETWEEN
NOW AND 00-02Z.

..KERR.. 04/15/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...PAH...LOT...ILX...MEG...JAN...LSX...DVN...LZK...
SGF...SHV...

LAT...LON 38839170 40339090 40878984 40768866 39738836 38578878
36648991 34219082 33329174 33059237 33369334 34389279
35779210 37109194 38219169 38839170

Non-Precipitation Watch, Warning, Advisory 10:18:59.3676761

...WIND ADVISORY IN EFFECT UNTIL 1 AM CDT /2 AM EDT/ MONDAY...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 1 AM CDT /2 AM EDT/ MONDAY.

* TIMING...WINDS WILL CONTINUE TO STRENGTHEN THROUGH THE AFTERNOON
AND WILL LIKELY PEAK IN STRENGTH THIS EVENING.

* WINDS...SUSTAINED WINDS INCREASING TO 25 TO 35 MPH BY LATE
AFTERNOON INTO THE EVENING WITH OCCASIONAL GUSTS OVER 45 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 30 TO 39 MPH...OR
GUSTS BETWEEN 45 AND 57 MPH...ARE LIKELY. WINDS THIS STRONG CAN
CAUSE MINOR PROPERTY DAMAGE UNLESS PRECAUTIONS ARE TAKEN. DRIVING
MAY BE DIFFICULT...ESPECIALLY IN HIGH PROFILE VEHICLES. MOTORISTS
SHOULD BE ALERT AND USE CAUTION.

&&

Special Weather Statement 04:56:35.1761704

...STRONG WINDS THIS AFTERNOON AHEAD OF COLD FRONT...

WINDY CONDITIONS ARE ANTICIPATED LATE THIS MORNING INTO THE
AFTERNOON AHEAD OF AN APPROACHING COLD FRONT. SOUTHERLY WINDS
WILL INCREASE QUICKLY THIS MORNING WITH SUSTAINED WINDS OF 20 TO
30 MPH AND GUSTS TO 40 MPH DEVELOPING. THESE WINDS MAY BE ENOUGH
TO BLOW LOOSE AND UNSECURED OBJECTS AROUND...ALONG WITH POSSIBLY
MAKING DRIVING DIFFICULT AT TIMES ON WEST TO EAST ORIENTED
ROADWAYS. IN ADDITION...ANY LATE AFTERNOON AND EVENING
THUNDERSTORMS MAY CONTAIN EVEN HIGHER WIND GUSTS.

Flood Statement 04:32:28.1618451

...URBAN AND SMALL STREAM FLOOD ADVISORY REMAINS IN EFFECT FOR
NORTHERN COOK...LAKE...LEE...DUPAGE...DE KALB...BOONE...WINNEBAGO...
OGLE...MCHENRY AND KANE COUNTIES UNTIL 500 AM CDT...

AT 430 AM CDT...DOPPLER RADAR INDICATED A LINE OF HEAVY RAIN
PRODUCING THUNDERSTORMS MOVING EAST AT 40 MPH ACROSS
MCHENRY...LAKE...NORTHERN KANE...AND NORTHERN COOK COUNTIES.
RAINFALL AMOUNTS OF ONE TO TWO INCHES HAVE ALREADY BEEN REPORTED OR
ESTIMATED IN THESE AREAS...WITH ADDITIONAL RAINFALL AMOUNTS OF ONE
HALF TO POSSIBLY OVER AN INCH POSSIBLE THROUGH 530 AM.

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE MINOR FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE MINOR FLOODING
INCLUDE...ANTIOCH...ARLINGTON HEIGHTS...AURORA...BARRINGTON...
BATAVIA...BELVIDERE...BUFFALO GROVE...CAROL STREAM...CHICAGO...
DE KALB...DES PLAINES...DIXON...ELGIN...EVANSTON...LISLE...
ROCHELLE...ROCKFORD...WOODSTOCK...AND ZION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE ELEVATED LEVELS ON SMALL
CREEKS AND STREAMS...PONDING OF WATER ON ROADS...URBAN AREAS...
HIGHWAYS... UNDERPASSES AND LOW LYING AREAS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT
STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN CHICAGO.

&&

LAT...LON 4249 8780 4227 8782 4214 8774 4208 8767
4190 8762 4189 8760 4184 8760 4176 8754
4173 8892 4166 8964 4192 8963 4193 8969
4220 8970 4221 8940 4250 8940

Flood Statement 02:09:00.766259.8

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED AN

* URBAN AND SMALL STREAM FLOOD ADVISORY FOR...
BOONE COUNTY IN NORTH CENTRAL ILLINOIS...
DE KALB COUNTY IN NORTH CENTRAL ILLINOIS...
DUPAGE COUNTY IN NORTHEAST ILLINOIS...
KANE COUNTY IN NORTHEAST ILLINOIS...
LAKE COUNTY IN NORTHEAST ILLINOIS...
LEE COUNTY IN NORTH CENTRAL ILLINOIS...
MCHENRY COUNTY IN NORTHEAST ILLINOIS...
NORTHERN COOK COUNTY IN NORTHEAST ILLINOIS...
OGLE COUNTY IN NORTH CENTRAL ILLINOIS...
WINNEBAGO COUNTY IN NORTH CENTRAL ILLINOIS...

* UNTIL 500 AM CDT

* AT 200 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH HEAVY RAINFALL ACROSS THE ADVISORY AREA. DOPPLER
RADAR ESTIMATED ONE TO TWO INCHES OF RAIN HAD FALLEN ACROSS FAR
NORTHERN ILLINOIS SINCE LATE SATURDAY EVENING. THUNDERSTORMS
WERE CONTINUING TO REGENERATE ACROSS THIS AREA AND WILL BE FAVORED
THROUGH DAYBREAK. THE MOST SUSCEPTIBLE AREAS TO FLOODING WILL
INCLUDE URBAN AREAS SUCH AS ROCKFORD...NEAR THE INTERSTATE 88
AND 90 CORRIDORS...AND THE NORTHERN...CENTRAL...AND WESTERN METRO
AREA TO CHICAGO.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE MINOR FLOODING TO
OCCUR...ESPECIALLY ALONG SMALL STREAMS AND NEAR LOW WATER
CROSSINGS. SOME LOCATIONS THAT WILL EXPERIENCE MINOR FLOODING
INCLUDE...ANTIOCH...ARLINGTON HEIGHTS...AURORA...BARRINGTON...
BATAVIA...BELVIDERE...BUFFALO GROVE...CAROL STREAM...CHICAGO...
DE KALB...DES PLAINES...DIXON...ELGIN...EVANSTON...LISLE...
ROCHELLE...ROCKFORD...WOODSTOCK...AND ZION.

THERE HAVE ALREADY BEEN REPORTS OF SOME STANDING WATER ON ROADWAYS
IN ROCKFORD...AS WELL AS QUICK RISES TO SOME AREA STREAMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN ADDITIONAL ONE TO TWO INCHES OF RAINFALL ARE STILL POSSIBLE IN
THE ADVISORY AREA.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE ELEVATED LEVELS ON SMALL
CREEKS AND STREAMS...PONDING OF WATER ON ROADS...URBAN AREAS...
HIGHWAYS... VIADUCTS...UNDERPASSES AND LOW LYING AREAS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. DO NOT DRIVE THROUGH AREAS WHERE WATER COVERS
THE ROADWAY.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN CHICAGO.

&&

LAT...LON 4249 8780 4227 8782 4214 8774 4208 8767
4190 8762 4189 8760 4184 8760 4176 8754
4173 8892 4166 8964 4192 8963 4193 8969
4220 8970 4221 8940 4250 8940

Special Weather Statement 01:37:57.581822.5

...SPECIAL WEATHER STATEMENT...

AT 135 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM VENETIAN VILLAGE TO HARWOOD
HEIGHTS...MOVING NORTHEAST AT 55 MPH.

ONE HALF INCH DIAMETER HAIL...WINDS GREATER THAN 40 MPH...FREQUENT
CLOUD TO GROUND LIGHTNING...BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
GAGES LAKE... NILES... RIVERWOODS...
THIRD LAKE... LINCOLNSHIRE... LIBERTYVILLE...
HARWOOD HEIGHTS... VERNON HILLS... LINDENHURST...

THE FOLLOWING LOCATIONS MAY ALSO BE IMPACTED...
COLLEGE OF LAKE COUNTY...GREAT LAKES NAVAL TRAINING CENTER...HARPER
COLLEGE...ILLINOIS BEACH STATE PARK...LAKE COUNTY IL
FAIRGROUNDS...LAKE FOREST COLLEGE AND LOYOLA UNIVERSITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. HEAVY
RAINFALL COULD LEAD TO STANDING WATER ON ROADWAYS AND POOR
VISIBILITY. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS
HAVE PASSED.

LAT...LON 4250 8780 4249 8779 4245 8779 4239 8780
4235 8782 4231 8781 4227 8782 4214 8774
4208 8767 4199 8765 4188 8800 4243 8825
4250 8808
TIME...MOT...LOC 0637Z 246DEG 57KT 4239 8800 4197 8777

Special Weather Statement 01:32:22.548657.6

...SPECIAL WEATHER STATEMENT...

AT 130 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM 10 MILES NORTH OF CAPRON TO
14 MILES SOUTHWEST OF PAW PAW...MOVING NORTHEAST AT 50 MPH.

ONE HALF INCH DIAMETER HAIL...WINDS GREATER THAN 40 MPH...FREQUENT
CLOUD TO GROUND LIGHTNING...BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH
THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
POPLAR GROVE... ROCHELLE... HILLCREST...
CHERRY VALLEY... LOVES PARK... ASHTON...
ROCKFORD... ROCKFORD AIRPORT... ROSCOE...

THE FOLLOWING LOCATIONS MAY ALSO BE IMPACTED...
BOONE COUNTY FAIRGROUNDS...CHAIN O LAKES STATE PARK...MCHENRY COUNTY
COLLEGE...MCHENRY COUNTY FAIRGROUNDS...MORRAIN HILLS STATE PARK...
NORTHERN ILLINOIS UNIVERSITY...ROCK CUT STATE PARK...AND ROCK VALLEY
COLLEGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. HEAVY
RAINFALL COULD LEAD TO STANDING WATER ON ROADWAYS AND POOR
VISIBILITY. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS
HAVE PASSED.

LAT...LON 4186 8842 4153 8917 4158 8918 4158 8936
4247 8899 4250 8892 4250 8813
TIME...MOT...LOC 0631Z 241DEG 47KT 4255 8873 4156 8917

Special Weather Statement 00:04:36.27323.87

...SPECIAL WEATHER STATEMENT...

AT MIDNIGHT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR ELBURN...MOVING NORTHEAST AT 50 MPH.

UP TO PENNY SIZE HAIL...WINDS GREATER THAN 40 MPH...FREQUENT CLOUD TO
GROUND LIGHTNING...BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
ELBURN... HAMPSHIRE... GENOA...
ST. CHARLES... GENEVA... ELGIN...
GILBERTS... WAYNE... HUNTLEY...

THE FOLLOWING LOCATIONS MAY ALSO BE IMPACTED...
ELGIN COMMUNITY COLLEGE...HARPER COLLEGE...MCHENRY COUNTY COLLEGE...
MCHENRY COUNTY FAIRGROUNDS AND MORRAIN HILLS STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. HEAVY
RAINFALL COULD LEAD TO STANDING WATER ON ROADWAYS AND POOR
VISIBILITY. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS
PASSED.

LAT...LON 4247 8838 4218 8788 4179 8843 4210 8879
TIME...MOT...LOC 0504Z 242DEG 46KT 4198 8850

Special Weather Statement 23:24:50.8344709

...SPECIAL WEATHER STATEMENT...

AT 1120 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM OREGON TO SHABBONA...MOVING
NORTHEAST AT 50 MPH.

UP TO PENNY SIZE HAIL...WINDS GREATER THAN 40 MPH...FREQUENT CLOUD TO
GROUND LIGHTNING...BRIEF MODERATE DOWNPOURS...ARE POSSIBLE WITH THESE
STORMS.

LOCATIONS IMPACTED INCLUDE...
SHABBONA... OREGON... WATERMAN...
ROCHELLE... STILLMAN VALLEY... BYRON...
HINCKLEY... HILLCREST... MALTA...

THE FOLLOWING LOCATIONS MAY ALSO BE IMPACTED...
BOONE COUNTY FAIRGROUNDS...ELGIN COMMUNITY COLLEGE...LOWDEN STATE
PARK...NORTHERN ILLINOIS UNIVERSITY...OGLE COUNTY FAIRGROUNDS...ROCK
CUT STATE PARK...ROCK VALLEY COLLEGE AND ROCKFORD SPEEDWAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW
AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. HEAVY
RAINFALL COULD LEAD TO STANDING WATER ON ROADWAYS AND POOR
VISIBILITY. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS
HAVE PASSED.

LAT...LON 4207 8815 4163 8872 4199 8940 4250 8908
TIME...MOT...LOC 0424Z 232DEG 50KT 4198 8923 4175 8881

Mesoscale Discussion 21:55:36.7814664

AREAS AFFECTED...NRN IL AND PARTS OF SRN WI

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 150254Z - 150430Z

CONVECTIVE TRENDS ARE BEING MONITORED FOR THE POSSIBILITY OF AN
ADDITIONAL WW EAST OF WW 172 WITHIN THE NEXT HOUR OR TWO.

THE ENVIRONMENT ALONG/NORTH OF A DEVELOPING WARM FRONT ACROSS
NORTHERN ILLINOIS DOES NOT APPEAR MUCH MORE THAN WEAKLY UNSTABLE.
HOWEVER...A SIGNIFICANT AND PERSISTENT SURFACE PRESSURE PERTURBATION
REMAINS EVIDENT WITH THE ORGANIZED MESOSCALE CONVECTIVE SYSTEM NOW
IN THE PROCESS OF DEVELOPING EASTWARD ACROSS EASTERN IOWA INTO
NORTHERN ILLINOIS AND EXTREME SOUTHERN WISCONSIN. ACTIVITY IS BEING
SUPPORTED BY AN AREA OF ENHANCED LOWER/MID TROPOSPHERIC WARM
ADVECTION AND DIVERGENT UPPER FLOW DOWNSTREAM OF THE SIGNIFICANT
UPPER TROUGH CROSSING THE ROCKIES. AND IT APPEAR THAT CONVECTION
MAY MAINTAIN STRENGTH WITH THE RISK FOR POTENTIALLY DAMAGING WIND
GUSTS...PERHAPS A CONTINUING RISK FOR HAIL...INTO THE
CHICAGO...POSSIBLY MILWAUKEE...METROPOLITAN AREAS BY THE 06-08Z TIME
FRAME.

..KERR.. 04/15/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...LOT...ILX...MKX...DVN...

LAT...LON 42199117 42589015 42768913 42798804 42538779 41788770
41418816 41208899 41239018 41229086 41179144 42199117

Non-Precipitation Watch, Warning, Advisory 08:03:47.2873672

...FREEZE WARNING HAS EXPIRED...

THE FREEZE WARNING HAS BEEN ALLOWED TO EXPIRE.

Non-Precipitation Watch, Warning, Advisory 04:50:11.1723689

...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CDT /9 AM EDT/
THIS MORNING...

* TEMPERATURES...HAVE DROPPED BELOW 32 DEGREES IN AREAS AWAY FROM
DOWNTOWN CHICAGO. SOME LOCATIONS WILL ALSO DROP BELOW 28 DEGREES
FOR A FEW HOURS...PRODUCING A HARD FREEZE.

* IMPACTS...WITH THE RECORD WARM MARCH SPURRING VEGETATION
GROWTH MUCH EARLIER THAN NORMAL...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION. COVER SENSITIVE PLANTS OR BRING INDOORS FOR
PROTECTION.

&&

Non-Precipitation Watch, Warning, Advisory 20:45:45.7399754

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT CDT /1 AM EDT/
TONIGHT TO 8 AM CDT /9 AM EDT/ THURSDAY...

* TEMPERATURES...WILL DROP BELOW 32 DEGREES AGAIN AWAY FROM
DOWNTOWN CHICAGO FOR SEVERAL HOURS TONIGHT INTO EARLY THURSDAY
MORNING. SEVERAL LOCATIONS WILL ALSO DROP BELOW 28 DEGREES FOR
A FEW HOURS...PRODUCING A HARD FREEZE.

* IMPACTS...WITH THE RECORD WARM MARCH SPURRING VEGETATION
GROWTH MUCH EARLIER THAN NORMAL...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION. COVER SENSITIVE PLANTS OR BRING INDOORS FOR
PROTECTION.

&&

Non-Precipitation Watch, Warning, Advisory 15:49:37.5640722

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT CDT /1 AM EDT/
TONIGHT TO 8 AM CDT /9 AM EDT/ THURSDAY...

* TEMPERATURES...WILL DROP BELOW 32 DEGREES AGAIN AWAY FROM
DOWNTOWN CHICAGO FOR SEVERAL HOURS TONIGHT INTO EARLY THURSDAY
MORNING. SEVERAL LOCATIONS WILL ALSO DROP BELOW 28 DEGREES FOR
A FEW HOURS...PRODUCING A HARD FREEZE.

* IMPACTS...WITH THE RECORD WARM MARCH SPURRING VEGETATION
GROWTH MUCH EARLIER THAN NORMAL...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

Test Message 11:00:35.3923865

THIS IS THE WEEKLY TEST OF THE WXWARN1 ALERT SYSTEM THIS IS ONLY A TEST

Radar Outage Notification 09:18:53.3319767

NOUS63 KLOT 111418
FTMLOT
Message Date: Apr 11 2012 14:18:22THE WSR88-D AT CHICAGO/ROMEOVILLE IL IS GOING OFFLINE FOR MORE PMI.

Non-Precipitation Watch, Warning, Advisory 08:59:16.3203244

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT CDT /1 AM EDT/
TONIGHT TO 8 AM CDT /9 AM EDT/ THURSDAY...

* TEMPERATURES...WILL DROP BELOW 32 DEGREES AGAIN AWAY FROM
DOWNTOWN CHICAGO FOR SEVERAL HOURS TONIGHT INTO EARLY THURSDAY
MORNING. SEVERAL LOCATIONS WILL ALSO DROP BELOW 28 DEGREES FOR A
FEW HOURS...PRODUCING A HARD FREEZE.

* IMPACTS...WITH THE RECORD WARM MARCH SPURRING VEGETATION
GROWTH MUCH EARLIER THAN NORMAL...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

Non-Precipitation Watch, Warning, Advisory 03:50:12.1367388

...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CDT /9 AM EDT/
THIS MORNING...
...FREEZE WARNING IN EFFECT FROM MIDNIGHT CDT /1 AM EDT/ TONIGHT
TO 8 AM CDT /9 AM EDT/ THURSDAY...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM MIDNIGHT CDT /1 AM EDT/ TONIGHT
TO 8 AM CDT /9 AM EDT/ THURSDAY.

* TEMPERATURE THIS MORNING...SLIGHTLY BELOW 32 DEGREES.

* TEMPERATURE TONIGHT...DROPPING BELOW 32 DEGREES AGAIN AWAY FROM
DOWNTOWN CHICAGO FOR NUMEROUS HOURS OVERNIGHT INTO EARLY
THURSDAY MORNING. SOME LOCATIONS WILL DROP TO BELOW 28 DEGREES
FOR A FEW HOURS...PRODUCING A HARD FREEZE.

* IMPACTS...WITH THE RECORD WARM MARCH SPURRING VEGETATION
GROWTH MUCH EARLIER THAN NORMAL...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

Non-Precipitation Watch, Warning, Advisory 21:27:20.7646760

...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM CDT /2 AM EDT/ TO
8 AM CDT /9 AM EDT/ WEDNESDAY...

* TEMPERATURE...AT OR BELOW 32 DEGREES LATE TONIGHT INTO EARLY
WEDNESDAY MORNING.

* IMPACTS...WITH THE RECORD WARM MARCH SPURRING VEGETATION
GROWTH MUCH EARLIER THAN NORMAL...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

Radar Outage Notification 16:23:36.5842584

NOUS63 KLOT 102122
FTMLOT
Message Date: Apr 10 2012 21:22:49THE WSR88-D AT CHICAGO/ROMEOVILLE IL IS BACK ONLINE.
�

Non-Precipitation Watch, Warning, Advisory 14:38:31.5218389

...FREEZE WARNING IN EFFECT FROM 1 AM CDT /2 AM EDT/ TO 8 AM CDT
/9 AM EDT/ WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 1 AM CDT /2 AM EDT/ TO 8 AM CDT
/9 AM EDT/ WEDNESDAY. THE FREEZE WATCH IS NO LONGER IN EFFECT.

* TEMPERATURE...POTENTIALLY AT OR BELOW 32 DEGREES FOR A FEW
HOURS LATE TONIGHT INTO EARLY WEDNESDAY MORNING.

* IMPACTS...WITH THE RECORD WARM MARCH SPURRING VEGETATION
GROWTH MUCH EARLIER THAN NORMAL...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

Radar Outage Notification 10:16:58.3664782

NOUS63 KLOT 101516
FTMLOT
Message Date: Apr 10 2012 15:16:03THE WSR88-D AT CHICAGO/ROMEOVILLE IL IS GOING DOWN FOR MAINTENANCE.

Non-Precipitation Watch, Warning, Advisory 07:55:48.2826252

...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
WEDNESDAY MORNING...
...FREEZE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS CANCELLED THE FREEZE
WARNING FOR THIS MORNING. TEMPERATURES ACROSS THE AFFECTED AREA HAVE
WARMED ABOVE FREEZING AND WILL CONTINUE TO DO SO THROUGH THE
MORNING HOURS.

THE FREEZE WARNING FOR LATE TONIGHT AND INTO WEDNESDAY MORNING IS
STILL IN EFFECT.

* TEMPERATURE...AT OR JUST BELOW 32 DEGREES FOR A COUPLE HOURS
EARLY THIS MORNING...THEN POTENTIALLY AGAIN LATE TONIGHT INTO
EARLY WEDNESDAY MORNING.

* IMPACTS...WITH THE RECORD WARM MARCH SPURRING VEGETATION
GROWTH MUCH EARLIER THAN NORMAL...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE.
THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION.

&&

Non-Precipitation Watch, Warning, Advisory 03:37:06.1289574

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING...
...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY
MORNING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A FREEZE
WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY
MORNING.

* TEMPERATURE...AT OR JUST BELOW 32 DEGREES FOR A COUPLE HOURS
EARLY THIS MORNING...THEN POTENTIALLY AGAIN LATE TONIGHT INTO
EARLY WEDNESDAY MORNING.

* IMPACTS...WITH THE RECORD WARM MARCH SPURRING VEGETATION
GROWTH MUCH EARLIER THAN NORMAL...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE.
THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION.

&&

Non-Precipitation Watch, Warning, Advisory 22:04:29.7867431

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM CDT
TUESDAY...

* TEMPERATURE...AT OR BELOW 32 DEGREES...POTENTIALLY FOR A FEW
HOURS LATER TONIGHT.

* IMPACTS...WITH THE RECORD WARM MARCH SPURRING VEGETATION
GROWTH MUCH EARLIER THAN NORMAL...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

Red Flag Warning 20:08:51.7180568

...RED FLAG WARNING WILL EXPIRE AT 8 PM CDT /9 PM EDT/ THIS
EVENING...

WINDS HAVE BEEN SLOWLY SUBSIDING AND RELATIVELY HUMIDITIES
GRADUALLY RECOVERING EARLY THIS EVENING. THIS TREND IS LIKELY TO
CONTINUE THROUGH THE NIGHT...THEREFORE THE RED FLAG WARNING HAS
BEEN ALLOWED TO EXPIRE.

Red Flag Warning 15:46:11.5620329

...RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM CDT /9 PM EDT/ THIS
EVENING FOR LOW RELATIVE HUMIDITY AND STRONG WINDS FOR NORTHERN
ILLINOIS AND NORTHWEST INDIANA...

* AFFECTED AREA...NORTH CENTRAL AND NORTHEASTERN ILLINOIS AND
NORTHWEST INDIANA.

* WINDS...NORTHWEST 20 TO 25 MPH WITH GUSTS UP TO 40 MPH.

* TIMING...THROUGH EARLY THIS EVENING.

* RELATIVE HUMIDITY...15 TO 25 PERCENT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

Non-Precipitation Watch, Warning, Advisory 12:46:14.4551425

...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM CDT TUESDAY...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 2 AM TO 9 AM CDT TUESDAY.

* TEMPERATURE...29 TO 32 FOR SEVERAL HOURS LATE TONIGHT.

* IMPACTS...WITH THE RECORD WARM MARCH SPURRING VEGETATION
GROWTH MUCH EARLIER THAN NORMAL...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

Red Flag Warning 11:03:02.3938418

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT /8 PM EDT/
THIS EVENING FOR LOW RELATIVE HUMIDITY AND STRONG WINDS FOR
NORTHERN ILLINOIS AND NORTHWEST INDIANA...

* AFFECTED AREA...NORTHERN ILLINOIS AND NORTHWEST INDIANA.

* WINDS...NORTHWEST 20 TO 30 MPH WITH GUSTS UP TO 40 MPH.

* TIMING...FROM LATE THIS MORNING THROUGH LATE THIS AFTERNOON.

* RELATIVE HUMIDITY...AS LOW AS 15 TO 25 PERCENT.

* IMPACTS...CONDITIONS WILL BECOME FAVORABLE FOR RAPID GROWTH OF
WILDFIRES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

Red Flag Warning 04:50:11.1723688

...RED FLAG WARNING IN EFFECT FROM NOON CDT /1 PM EDT/ TODAY TO
7 PM CDT /8 PM EDT/ THIS EVENING FOR LOW RELATIVE HUMIDITY AND
STRONG WINDS FOR NORTHERN ILLINOIS AND NORTHWEST INDIANA...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A RED FLAG
WARNING FOR LOW RELATIVE HUMIDITY AND STRONG WINDS...WHICH IS IN
EFFECT FROM NOON CDT /1 PM EDT/ TODAY TO 7 PM CDT /8 PM EDT/ THIS
EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT.

* AFFECTED AREA...NORTHERN ILLINOIS AND NORTHWEST INDIANA.

* WINDS...NORTHWEST 20 TO 30 MPH WITH GUSTS UP TO 40 MPH.

* TIMING...FROM LATE THIS MORNING THROUGH LATE THIS AFTERNOON.

* RELATIVE HUMIDITY...AS LOW AS 15 TO 25 PERCENT.

* IMPACTS...CONDITIONS WILL BECOME FAVORABLE FOR RAPID GROWTH OF
WILDFIRES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

Red Flag Warning 21:57:05.7823475

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON
THROUGH MONDAY EVENING...

* AFFECTED AREA...ALL OF NORTH CENTRAL AND NORTHEAST ILLINOIS
ALONG WITH NORTHWEST INDIANA.

* WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* TIMING...FROM LATE MONDAY MORNING THROUGH LATE MONDAY
AFTERNOON.

* RELATIVE HUMIDITY...AS LOW AS 20 PERCENT.

* IMPACTS...CONDITIONS WILL BECOME FAVORABLE FOR RAPID GROWTH OF
WILDFIRES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

&&

Red Flag Warning 19:04:04.6795756

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM MONDAY AFTERNOON
THROUGH MONDAY EVENING...
...RED FLAG WARNING HAS EXPIRED...

* AFFECTED AREA...PORTIONS OF NORTH CENTRAL ILLINOIS AND
NORTHEAST ILLINOIS ALONG WITH NORTHWEST INDIANA.

* WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* TIMING...FROM LATE MONDAY MORNING THROUGH LATE MONDAY
AFTERNOON.

* RELATIVE HUMIDITY...AS LOW AS 20 PERCENT.

* IMPACTS...CONDITIONS WILL BECOME FAVORABLE FOR RAPID GROWTH OF
WILDFIRES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

&&

Red Flag Warning 16:43:01.5957918

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING...

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH
MONDAY EVENING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A FIRE WEATHER
WATCH FOR LOW RELATIVE HUMIDITY AND STRONG WINDS...WHICH IS IN
EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY EVENING.

* AFFECTED AREA...PORTIONS OF NORTH CENTRAL ILLINOIS AND
NORTHEAST ILLINOIS ALONG WITH NORTHWEST INDIANA.

* WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* TIMING...THROUGH LATE THIS AFTERNOON AND ONCE AGAIN FROM LATE
MONDAY MORNING THROUGH LATE MONDAY AFTERNOON.

* RELATIVE HUMIDITY...AS LOW AS 20 PERCENT.

* IMPACTS...CONDITIONS WILL BECOME FAVORABLE FOR RAPID GROWTH OF
WILDFIRES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

&&

Red Flag Warning 10:19:59.3682701

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING
FOR LOW RELATIVE HUMIDITY AND STRONG WINDS FOR FAR NORTHERN AND
NORTHEAST ILLINOIS...

* AFFECTED AREA...FAR NORTHERN AND NORTHEAST ILLINOIS...INCLUDING
MUCH OF CHICAGOLAND AND THE ROCKFORD AREA.

* WINDS...WEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* TIMING...FROM LATE THIS MORNING THROUGH LATE THIS AFTERNOON.

* RELATIVE HUMIDITY...AS LOW AS 20 PERCENT.

* IMPACTS...CONDITIONS WILL BECOME FAVORABLE FOR RAPID GROWTH OF
WILDFIRES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

Red Flag Warning 04:47:40.1708740

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT
THIS EVENING FOR LOW RELATIVE HUMIDITY AND STRONG WINDS FOR FAR
NORTHERN AND NORTHEAST ILLINOIS...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A RED FLAG
WARNING FOR LOW RELATIVE HUMIDITY AND STRONG WINDS...WHICH IS IN
EFFECT FROM 11 AM THIS MORNING TO 7 PM CDT THIS EVENING. THE FIRE
WEATHER WATCH IS NO LONGER IN EFFECT.

* AFFECTED AREA...FAR NORTHERN AND NORTHEAST ILLINOIS...INCLUDING
MUCH OF CHICAGOLAND AND THE ROCKFORD AREA.

* WINDS...WEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* TIMING...FROM LATE THIS MORNING THROUGH LATE THIS AFTERNOON.

* RELATIVE HUMIDITY...AS LOW AS 20 TO 25 PERCENT.

* IMPACTS...CONDITIONS MAY BECOME FAVORABLE FOR RAPID GROWTH OF
WILDFIRES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

Red Flag Warning 21:32:28.7677251

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH SUNDAY EVENING...

* AFFECTED AREA...ALL OF NORTH CENTRAL AND NORTHEAST ILLINOIS
ALONG WITH NORTHWEST INDIANA.

* WINDS...NORTHWEST 10 TO 20 MPH BECOMING WEST. GUSTS UP TO 30
MPH.

* TIMING...FROM LATE SUNDAY MORNING THROUGH LATE SUNDAY AFTERNOON.

* RELATIVE HUMIDITY...AS LOW AS 20 PERCENT.

* IMPACTS...CONDITIONS MAY BECOME FAVORABLE FOR RAPID GROWTH OF
WILD FIRES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

&&

Red Flag Warning 15:51:43.5653197

...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A FIRE WEATHER
WATCH FOR LOW RELATIVE HUMIDITY AND STRONG WINDS WHICH IS IN
EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING.

* AFFECTED AREA...ALL OF NORTH CENTRAL AND NORTHEAST ILLINOIS
ALONG WITH NORTHWEST INDIANA.

* WINDS...NORTHWEST 10 TO 20 MPH BECOMING WEST. GUSTS UP TO 30
MPH.

* TIMING...FROM LATE SUNDAY MORNING THROUGH LATE SUNDAY AFTERNOON.

* RELATIVE HUMIDITY...AS LOW AS 20 PERCENT.

* IMPACTS...CONDITIONS MAY BECOME FAVORABLE FOR RAPID GROWTH OF
WILD FIRES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

&&

Non-Precipitation Watch, Warning, Advisory 08:04:28.2877732

...FREEZE WARNING HAS EXPIRED...

THE FREEZE WARNING HAS EXPIRED. TEMPERATURES HAVE WARMED ABOVE
FREEZING AND WILL CONTINUE RISING THIS MORNING.

Non-Precipitation Watch, Warning, Advisory 03:54:10.1390950

...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CDT /9 AM EDT/
THIS MORNING...

* TEMPERATURES...WILL FALL INTO THE UPPER 20S AND LOW 30S EARLY
THIS MORNING.

* IMPACTS...WITH THE RECORD WARM MARCH BRINGING VEGETATION
GROWTH FAR AHEAD OF SCHEDULE...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

Non-Precipitation Watch, Warning, Advisory 21:19:52.7602408

...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM CDT /2 AM EDT/ TO
8 AM CDT /9 AM EDT/ FRIDAY...

* TEMPERATURES...WILL FALL INTO THE UPPER 20S AND LOW 30S BY
EARLY FRIDAY MORNING.

* IMPACTS...WITH THE RECORD WARM MARCH BRINGING VEGETATION
GROWTH FAR AHEAD OF SCHEDULE...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

Radar Outage Notification 15:45:39.5617161

NOUS63 KLOT 052044
FTMLOT
Message Date: Apr 05 2012 20:44:19THE WSR88-D AT CHICAGO/ROMEOVILLE IL IS BACK ONLINE.

Non-Precipitation Watch, Warning, Advisory 15:40:32.5586768

...FREEZE WARNING IN EFFECT FROM 1 AM CDT /2 AM EDT/ TO 8 AM CDT
/9 AM EDT/ FRIDAY...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM 1 AM CDT /2 AM EDT/ TO 8 AM CDT
/9 AM EDT/ FRIDAY. THE FREEZE WATCH IS NO LONGER IN EFFECT.

* TEMPERATURES...WILL FALL INTO THE UPPER 20S AND LOW 30S BY EARLY
FRIDAY MORNING.

* IMPACTS...WITH THE RECORD WARM MARCH BRINGING VEGETATION
GROWTH FAR AHEAD OF SCHEDULE...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

Non-Precipitation Watch, Warning, Advisory 10:29:45.3740714

...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY MORNING...

* TEMPERATURES...ARE EXPECTED TO FALL INTO THE UPPER 20S AND LOW
30S BY EARLY FRIDAY MORNING.

* IMPACTS...WITH THE RECORD WARM MARCH BRINGING VEGETATION
GROWTH FAR AHEAD OF SCHEDULE...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE.
THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION.
TAKE STEPS TO PROTECT SENSITIVE VEGETATION ONCE FREEZING
TEMPERATURES BECOME IMMINENT.

&&

Radar Outage Notification 08:46:02.3124638

NOUS63 KLOT 051345
FTMLOT
Message Date: Apr 05 2012 13:45:40THE WSR88-D AT CHICAGO/ROMEOVILLE IL WILL BE GOING OFFLINE FOR CORRECTIVE MAINTENANCE.

Non-Precipitation Watch, Warning, Advisory 03:46:45.1346895

...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY MORNING...

* TEMPERATURES...ARE EXPECTED TO FALL INTO THE UPPER 20S AND LOW
30S BY EARLY FRIDAY MORNING.

* IMPACTS...WITH THE RECORD WARM MARCH BRINGING VEGETATION
GROWTH FAR AHEAD OF SCHEDULE...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE.
THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION.
TAKE STEPS TO PROTECT SENSITIVE VEGETATION ONCE FREEZING
TEMPERATURES BECOME IMMINENT.

&&

Non-Precipitation Watch, Warning, Advisory 22:01:03.7847037

...FREEZE WATCH REMAINS IN EFFECT FROM LATE THURSDAY NIGHT
THROUGH FRIDAY MORNING...

* TEMPERATURES...ARE EXPECTED TO FALL INTO THE UPPER 20S AND LOW
30S BY EARLY FRIDAY MORNING.

* IMPACTS...WITH THE RECORD WARM MARCH BRINGING VEGETATION
GROWTH FAR AHEAD OF SCHEDULE...SENSITIVE VEGETATION MAY BE
DAMAGED OR KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE.
THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION.
TAKE STEPS TO PROTECT SENSITIVE VEGETATION ONCE FREEZING
TEMPERATURES BECOME IMMINENT.

&&

Radar Outage Notification 17:23:11.6196509

NOUS63 KLOT 042222
FTMLOT
Message Date: Apr 04 2012 22:22:43THE WSR88-D AT CHICAGO/ROMEOVILLE IL IS BACK ONLINE.

Non-Precipitation Watch, Warning, Advisory 15:46:34.5622606

...FREEZE WATCH IN EFFECT FROM LATE THURSDAY NIGHT THROUGH FRIDAY
MORNING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A FREEZE
WATCH...WHICH IS IN EFFECT FROM LATE THURSDAY NIGHT THROUGH
FRIDAY MORNING.

* TEMPERATURE...ARE EXPECTED TO FALL INTO THE UPPER 20S AND LOW
30S BY EARLY FRIDAY MORNING.

* IMPACTS...WITH THE RECORD WARM MARCH BRINGING VEGETATION GROWTH
FAR AHEAD OF SCHEDULE...SENSITIVE VEGETATION MAY BE DAMAGED OR
KILLED BY THE FREEZING TEMPERATURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE.
THESE CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION.
TAKE STEPS TO PROTECT SENSITIVE VEGETATION ONCE FREEZING
TEMPERATURES BECOME IMMINENT.

&&

Test Message 11:00:53.3925647

THIS IS THE WEEKLY TEST OF THE WXWARN1 ALERT SYSTEM THIS IS ONLY A TEST

Radar Outage Notification 09:01:58.3219282

NOUS63 KLOT 041400
FTMLOT
Message Date: Apr 04 2012 14:00:43THE WSR88-D AT CHICAGO/ROMEOVILLE IL IS WILL BE GOING OFFLINE FOR WAVE GUIDE SWITCH REPLACEMENT.

Mesoscale Discussion 14:18:55.5101965

AREAS AFFECTED...NERN MO...CNTRL IL...FAR WRN IND

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 031917Z - 032045Z

LARGE HAIL AND DAMAGING WIND GUSTS WILL BE POSSIBLE WITH STORMS
FORMING THIS AFTERNOON/EVENING OVER NERN MO...CNTRL IL AND FAR WRN
IND. TRENDS WILL CONTINUE TO BE MONITORED FOR POSSIBLE WW.

SURFACE ANALYSIS AT 18-19Z PLACED AN AREA OF LOW PRESSURE OVER NRN
PORTIONS OF CNTRL IL...WITH A COLD FRONT EXTENDING SWWD INTO CNTRL
MO AND A WARM FRONT LOCATED SEWD INTO ERN IL AND SRN IND. WARM
SECTOR AIRMASS BETWEEN THESE TWO FRONTS IS CHARACTERIZED BY
TEMPERATURES IN THE 80S AND DEWPOINTS FROM THE MID/UPR 50S TO LOW
60S. RUC OBJECTIVE ANALYSIS GUIDANCE ALSO SHOWS THE PRESENCE OF
STEEP 700-500 MB LAPSE RATES /FROM 7 TO 8 C PER KM/...WHICH WILL AID
IN MLCAPE VALUES NEAR 1500 J/KG WITH A FEW MORE HRS OF SURFACE
HEATING. UPSTREAM FROM THE REGION...A MIDLEVEL VORTICITY LOBE IS
MOVING NEWD ACROSS CNTRL MO. LARGE-SCALE ASCENT ASSOCIATED WITH THIS
FEATURE COMBINED WITH CONVERGENCE AND DESTABILIZATION ALONG BOTH THE
COLD AND WARM FRONTAL BOUNDARIES SHOULD AID IN SCATTERED
THUNDERSTORM DEVELOPMENT BY 20-22Z. AREA VWP/S AND RUC SOUNDINGS
INDICATE VERTICAL SHEAR PROFILES WILL BE MARGINALLY SUPPORTIVE FOR
ORGANIZED MULTICELL CLUSTERS AND LINE SEGMENTS. HOWEVER...THE
MODERATE CAPE/STEEP LAPSE RATE ENVIRONMENT WILL SUPPORT A THREAT FOR
LARGE HAIL AND DAMAGING WIND GUSTS.

..GARNER.. 04/03/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...IWX...IND...LOT...ILX...LSX...DVN...

LAT...LON 41388997 41368766 40318690 39558738 39828965 38739148
38829239 40409134 41388997

Radar Outage Notification 10:40:38.3805361

NOUS63 KLOT 031539
FTMLOT
Message Date: Apr 03 2012 15:39:45THE WSR88-D AT CHICAGO/ROMEOVILLE IL IS BACK ONLINE. J7

Radar Outage Notification 17:12:50.6135030

NOUS63 KLOT 012210
FTMLOT
Message Date: Apr 01 2012 22:10:38THE WSR88-D AT CHICAGO/ROMEOVILLE IL IS BACK ONLINE.

Mesoscale Discussion 15:42:58.5601221

AREAS AFFECTED...ECNTRL IL...CNTRL IND...WCNTRL OH

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 012042Z - 012215Z

LATEST VIS IMAGERY SUGGESTS DEEPER CONVECTIVE UPDRAFTS ARE
DEVELOPING ACROSS ECNTRL IL INVOF IROQUOIS/VERMILION COUNTIES. THIS
IS LIKELY INDICATIVE OF STRONG THERMAL HEATING AT LOW LEVELS AND
STEEP LAPSE RATES. HOWEVER...FRONTAL CONVERGENCE SHOULD GRADUAL SAG
SWD INTO THIS ZONE OF STEEPER LOW LEVEL LAPSE RATES WHICH SHOULD
ENCOURAGE THUNDERSTORM DEVELOPMENT OVER THE NEXT FEW HOURS. THIS
SCENARIO IS BECOMING INCREASINGLY LIKELY...THOUGH DEEP WLY FLOW MAY
DELAY THE ONSET OF THUNDERSTORMS UNTIL 22-23Z TIME FRAME. DEEP
LAYER SHEAR IS CERTAINLY SUPPORTIVE OF ORGANIZED UPDRAFTS THAT WOULD
MOVE SEWD AT ROUGHLY 25-30KT. LATEST THINKING IS AN E-W CORRIDOR OF
CONVECTION COULD EVOLVE ALONG THE FRONT INTO THE EARLY EVENING HOURS
WHICH WOULD POSE AT LEAST A THREAT FOR LARGE HAIL AND DAMAGING
WINDS. WILL CONTINUE TO MONITOR FOR POSSIBLE SEVERE THUNDERSTORM
WATCH.

..DARROW.. 04/01/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...ILN...IWX...IND...LOT...ILX...

LAT...LON 41088765 40818390 39528390 39858762 41088765

Mesoscale Discussion 07:57:44.2837735

AREAS AFFECTED...PORTIONS EXTREME ERN IA...CENTRAL/NRN IL...EXTREME
SRN WI.

CONCERNING...SEVERE THUNDERSTORM WATCH 124...

VALID 011256Z - 011500Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 124
CONTINUES.

CONTINUE WW ALONG AND E OF WRN FRINGES OF ELEVATED MCS. WHILE
OVERALL THREAT WILL DIMINISH GRADUALLY THROUGH REMAINDER WW VALID
PERIOD...OCNL/SPORADIC SVR HAIL POTENTIAL WILL CONTINUE...MAINLY
WITH CELLS ON SWRN/WRN FRINGES OF PERSISTENT MCS WHERE CONVECTION
HAS RELATIVELY UNIMPEDED ACCESS TO FAVORABLE THETAE.

VWP/PROFILER DATA INDICATE TWO PRIMARY LLJ BRANCHES...STRONGEST ONE
MERIDIONALLY ORIENTED OVER CENTRAL HIGH PLAINS...SECONDARY BRANCH
WITH 30-35 KT AXIAL FLOW FROM OZARKS NEWD ACROSS CENTRAL IL.
MEANWHILE...SFC ANALYSIS SHOWS LOW OVER NEB/IA BORDER...WARM FRONT
ESEWD OVER DSM AREA THEN SEWD ACROSS ERN FRINGES STL AREA IN IL.
ISENTROPIC ASCENT TO LFC WILL CONTINUE NE OF SFC WARM FRONT OVER
IL/SRN WI IN SUPPORT OF CONVECTION...WHILE ISENTROPES AT LFC LEVEL
SHIFT EWD WITH TIME. GREATEST BUOYANCY -- I.E. ELEVATED MUCAPE
AROUND 1500 J/KG -- SHOULD REMAIN ON SWRN SIDE OF COMPLEX WHERE
AVAILABLE LOW-LEVEL MOISTURE AND MIDLEVEL LAPSE RATES EACH ARE
RELATIVELY MAXIMIZED. CAPE WILL DIMINISH NWD AND NEWD FROM
W-CENTRAL IL. EFFECTIVE SHEAR ALSO WILL CONTINUE TO WEAKEN WITH EWD
EXTENT...PARTLY AS FUNCTION OF SHALLOWER CONVECTION-BEARING LAYERS
WITH RESPECT TO STRONGER DEEP-LAYER SHEAR.

..EDWARDS.. 04/01/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...LOT...ILX...MKX...DVN...ARX...

LAT...LON 40529059 42409073 42969073 42878899 42448835 41518813
40568837 40178925 40529059

Mesoscale Discussion 01:33:41.556478.1

AREAS AFFECTED...PORTIONS EXTREME ERN IA...CENTRAL/NRN IL...EXTREME
SRN WI.

CONCERNING...SEVERE THUNDERSTORM WATCH 124...

VALID 010633Z - 010830Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 124
CONTINUES.

CONTINUE WW ALONG AND E OF WRN FRINGES OF ELEVATED MCS. WHILE
OVERALL THREAT WILL DIMINISH GRADUALLY THROUGH REMAINDER WW VALID
PERIOD...OCNL/SPORADIC SVR HAIL POTENTIAL WILL CONTINUE...MAINLY
WITH CELLS ON SWRN/WRN FRINGES OF PERSISTENT MCS WHERE CONVECTION
HAS RELATIVELY UNIMPEDED ACCESS TO FAVORABLE THETAE.

VWP/PROFILER DATA INDICATE TWO PRIMARY LLJ BRANCHES...STRONGEST ONE
MERIDIONALLY ORIENTED OVER CENTRAL HIGH PLAINS...SECONDARY BRANCH
WITH 30-35 KT AXIAL FLOW FROM OZARKS NEWD ACROSS CENTRAL IL.
MEANWHILE...SFC ANALYSIS SHOWS LOW OVER NEB/IA BORDER...WARM FRONT
ESEWD OVER DSM AREA THEN SEWD ACROSS ERN FRINGES STL AREA IN IL.
ISENTROPIC ASCENT TO LFC WILL CONTINUE NE OF SFC WARM FRONT OVER
IL/SRN WI IN SUPPORT OF CONVECTION...WHILE ISENTROPES AT LFC LEVEL
SHIFT EWD WITH TIME. GREATEST BUOYANCY -- I.E. ELEVATED MUCAPE
AROUND 1500 J/KG -- SHOULD REMAIN ON SWRN SIDE OF COMPLEX WHERE
AVAILABLE LOW-LEVEL MOISTURE AND MIDLEVEL LAPSE RATES EACH ARE
RELATIVELY MAXIMIZED. CAPE WILL DIMINISH NWD AND NEWD FROM
W-CENTRAL IL. EFFECTIVE SHEAR ALSO WILL CONTINUE TO WEAKEN WITH EWD
EXTENT...PARTLY AS FUNCTION OF SHALLOWER CONVECTION-BEARING LAYERS
WITH RESPECT TO STRONGER DEEP-LAYER SHEAR.

..EDWARDS.. 04/01/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...LOT...ILX...MKX...DVN...ARX...

LAT...LON 40529059 42409073 42969073 42878899 42448835 41518813
40568837 40178925 40529059