Wednesday, September 26, 2012

Radar Outage Notification 16:24:34.5848326

NOUS63 KLOT 262123
FTMLOT
Message Date: Sep 26 2012 21:23:31KLOT is back online. KCM

Radar Outage Notification 13:59:34.4987025

NOUS63 KLOT 261859
FTMLOT
Message Date: Sep 26 2012 18:59:14KLOT is going down for awhile, we are reloading Build 13.0. KCM

Test Message 11:00:28.3923172

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

Tuesday, September 25, 2012

Flood Potential Outlook 14:49:24.5283035

...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 OCTOBER 1 2012 - DECEMBER 30 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 80 PERCENT CHANCE
THE RIVER WILL RISE ABOVE 2.9 FEET.

LOCATION FS (FT) 90% 80% 70% 60% 50% 40% 30% 20% 10%
-------- ------- --- --- --- --- --- --- --- --- ---
KANKAKEE RIVER
DUNNS BRIDGE 10.0 2.6 2.9 3.5 4.3 4.8 5.1 5.6 6.2 7.8
KOUTS 11.0 3.8 4.1 4.6 5.5 5.9 6.3 6.8 7.5 9.1
SHELBY 9.0 4.0 4.3 4.6 5.6 6.0 6.3 6.7 7.8 9.1
MOMENCE 5.0 1.5 1.6 1.7 2.1 2.4 2.5 2.9 3.4 4.0
WILMINGTON 6.5 1.2 1.4 1.5 1.9 2.1 2.5 3.0 3.7 4.3

SUGAR CREEK
MILFORD 18.0 5.7 6.1 6.5 7.7 8.3 9.4 10.3 13.5 17.6

IROQUOIS RIVER
RENSSELAER 12.0 4.6 4.9 5.2 5.8 6.4 7.3 8.1 9.4 11.1
FORESMAN 18.0 6.6 6.8 7.7 8.6 10.1 10.7 12.1 13.9 15.9
IROQUOIS 18.0 5.7 6.0 6.8 7.5 9.1 10.0 11.2 15.8 17.8
CHEBANSE 16.0 3.4 3.6 4.0 4.6 5.1 5.7 6.4 8.1 10.4

DES PLAINES RIVER
RUSSELL 7.0 3.0 3.2 3.5 3.9 4.2 4.6 5.1 5.7 6.9
GURNEE 7.0 1.7 1.8 1.9 2.4 2.8 3.1 3.6 3.9 4.8
DES PLAINES 5.0 1.0 1.2 1.2 1.3 1.5 1.8 2.0 2.2 2.9
LINCOLNSHIRE 12.5 6.3 6.6 6.7 7.2 7.5 8.1 8.7 9.0 9.7
RIVERSIDE 7.0 2.8 3.1 3.2 4.0 4.2 4.9 5.4 5.8 6.7

FOX RIVER
ALGONQUIN TAILW 9.5 5.3 5.5 5.7 5.9 6.2 6.6 7.0 7.2 7.7
MONTGOMERY 13.0 11.2 11.3 11.4 11.5 11.7 11.8 11.8 12.2 12.5
DAYTON 12.0 5.6 6.0 6.2 6.4 7.2 7.6 8.0 8.5 10.1

EAST BR DU PAGE RIVER
BOLINGBROOK 19.5 16.4 16.7 17.3 17.7 18.1 18.5 19.1 19.3 20.4

DU PAGE RIVER
SHOREWOOD 6.5 3.0 3.2 3.6 3.9 4.2 4.5 4.9 5.3 6.0

MAZON RIVER
COAL CITY 12.0 2.5 3.1 4.4 4.8 5.6 6.3 6.9 8.0 9.3

VERMILION RIVER
PONTIAC 14.0 3.1 3.4 4.0 4.1 4.4 4.8 5.2 5.9 7.5
LEONORE 16.0 3.8 4.6 5.0 5.7 6.0 6.8 7.3 9.8 11.6

THORN CREEK
THORNTON 10.0 3.5 4.0 4.3 4.8 5.1 5.2 5.9 7.0 9.0

HART DITCH
DYER 12.0 3.0 3.3 3.7 4.1 4.2 4.7 5.0 6.1 6.6

LITTLE CALUMET RIVER
MUNSTER 12.0 7.9 8.8 9.1 9.4 9.7 10.2 10.6 11.9 13.9
SOUTH HOLLAND 16.5 7.6 8.4 9.0 9.3 9.7 10.0 10.7 11.5 13.2

ILLINOIS RIVER
MORRIS 16.0 5.1 5.4 5.8 6.4 7.0 7.8 8.7 10.3 12.8
OTTAWA 463.0

LA SALLE 20.0 11.1 11.6 12.1 12.5 13.3 14.1 15.4 16.6 20.8

KISHWAUKEE RIVER
BELVIDERE 9.0 1.2 1.4 1.6 1.9 2.2 2.5 2.9 3.6 4.7
PERRYVILLE 12.0 5.4 5.5 5.9 6.1 6.5 6.9 7.4 7.8 9.2

SOUTH BRANCH KISHWAUKEE RIVER
DE KALB 10.0 3.3 3.4 3.5 3.7 4.3 4.5 4.8 5.3 6.0

ROCK RIVER
ROCKTON 10.0 2.9 3.0 3.0 3.0 3.2 3.4 3.9 4.4 5.8
LATHAM PARK 10.0 3.8 3.9 3.9 3.9 4.1 4.2 4.6 5.0 6.0
ROCKFORD 9.0 2.4 2.4 2.5 2.5 2.5 2.6 2.8 3.0 3.2
BYRON 13.0 5.1 5.1 5.2 5.3 5.5 5.7 6.3 6.9 8.7
DIXON 16.0 7.6 7.6 7.7 7.9 8.0 8.2 8.7 9.1 10.5

PECATONICA RIVER
SHIRLAND 12.0 3.0 3.4 3.7 3.9 4.1 4.6 4.7 5.9 8.3

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.

Monday, September 24, 2012

Non-Precipitation Watch, Warning, Advisory 07:56:20.2829419

...FROST ADVISORY WILL EXPIRE AT 8 AM CDT /9 AM EDT/ THIS
MORNING...

THE THREAT OF FROST WILL END SHORTLY AS TEMPERATURES QUICKLY WARM.

Non-Precipitation Watch, Warning, Advisory 03:46:58.1348181

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT /9 AM EDT/
THIS MORNING...

* TEMPERATURE...TEMPERATURES WILL REMAIN IN THE LOW TO MID 30S
THROUGH DAYBREAK...AWAY FROM THE IMMEDIATE LAKE MICHIGAN SHORE
AND THE CHICAGO METRO AREA.

* IMPACTS...SENSITIVE PLANTS MAY BE DAMAGED OR KILLED IF LEFT
UNPROTECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

Sunday, September 23, 2012

Non-Precipitation Watch, Warning, Advisory 21:55:05.7811595

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM CDT /2 AM EDT/ TO
8 AM CDT /9 AM EDT/ MONDAY...

* TEMPERATURE...TEMPERATURES WILL FALL INTO THE LOW TO MID 30S
OVERNIGHT...AWAY FROM THE IMMEDIATE LAKE MICHIGAN SHORE AND THE
CHICAGO METRO AREA.

* IMPACTS...SENSITIVE PLANTS MAY BE DAMAGED OR KILLED IF LEFT
UNPROTECTED.

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 20:42:24.7379855

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM CDT /2 AM EDT/ TO
8 AM CDT /9 AM EDT/ MONDAY...

* TEMPERATURE...TEMPERATURES WILL FALL INTO THE LOW AND MID 30S
OVERNIGHT...AWAY FROM THE IMMEDIATE LAKE MICHIGAN SHORE AND THE
CORE OF THE CHICAGO URBAN HEAT ISLAND.

* IMPACTS...SENSITIVE PLANTS MAY BE DAMAGED OR KILLED IF LEFT
UNPROTECTED.

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 15:20:46.5469354

...FROST ADVISORY IN EFFECT FROM 1 AM CDT /2 AM EDT/ TO 8 AM CDT
/9 AM EDT/ MONDAY...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 1 AM CDT /2 AM EDT/ TO 8 AM
CDT /9 AM EDT/ MONDAY.

* TEMPERATURE...TEMPERATURES WILL FALL INTO THE MID 30S
OVERNIGHT...OUTSIDE OF THE CHICAGO METRO AREA.

* IMPACTS...SENSITIVE PLANTS MAY BE DAMAGED OR KILLED IF LEFT
UNPROTECTED.

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 07:49:21.2787939

...FROST ADVISORY WILL EXPIRE AT 8 AM CDT THIS MORNING...

THE THREAT OF FROST HAS ENDED FOR THIS MORNING.

Non-Precipitation Watch, Warning, Advisory 03:41:31.1315809

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING...

* TEMPERATURE...LOW TO MID 30S EXPECTED EARLY THIS MORNING...MAINLY
FOR AREAS AWAY FROM LAKE MICHIGAN AND THE CITY OF CHICAGO.

* IMPACTS...SENSITIVE PLANTS MAY BE DAMAGED OR KILLED IF LEFT
UNPROTECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

Saturday, September 22, 2012

Non-Precipitation Watch, Warning, Advisory 20:48:22.7415298

...FROST ADVISORY IN EFFECT FROM 3 AM TO 8 AM CDT SUNDAY...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 3 AM TO 8 AM CDT SUNDAY.

* TEMPERATURE...LOW TO MID 30S EXPECTED AFTER MIDNIGHT...MAINLY
FOR AREAS AWAY FROM LAKE MICHIGAN AND THE CITY OF CHICAGO.

* IMPACTS...SENSITIVE PLANTS MAY BE DAMAGED OR KILLED IF LEFT
UNPROTECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

Special Weather Statement 04:15:40.1518660

A COLD FRONT WILL PASS THROUGH THE REGION TODAY WITH UNSEASONABLY
COLD AIR FILTERING IN BEHIND IT. LOW TEMPERATURES TONIGHT WILL
DROP INTO THE LOW 30S...WITH ISOLATED SPOTS DROPPING BELOW
FREEZING. AS SUCH WIDESPREAD FROST IS POSSIBLE TONIGHT.

THERE IS UNCERTAINTY IN RESPECT TO THE EXTENT OF THE FROST...AS
SURFACE WINDS MAY INHIBIT EXTENSIVE FROST DEVELOPMENT. PLEASE
MONITOR LATER FORECASTS FOR UPDATED INFORMATION.

FROST AND TEMPERATURES NEAR FREEZING MAY DAMAGE OR KILL SENSITIVE
VEGETATION LEFT UNPROTECTED OUTSIDE.

Friday, September 21, 2012

Radar Outage Notification 14:42:09.5239970

NOUS63 KLOT 211941
FTMLOT

MESSAGE DATE: SEP 21 2012 14:32:01

TORD WILL BE OUT OF SERVICE UNTIL 2100 GMT.

Mesoscale Discussion 13:37:33.4856247

AREAS AFFECTED...CNTRL IL...WCNTRL IND

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 211836Z - 212000Z

PROBABILITY OF WATCH ISSUANCE...60 PERCENT

SUMMARY...AN ISOLATED SEVERE THREAT IS EXPECTED TO DEVELOP ACROSS
CNTRL IL INTO WRN IND THIS AFTERNOON. ISOLATED LARGE HAIL AND WIND
DAMAGE WILL INITIALLY BE THE MAIN THREAT. AN ISOLATED TORNADO THREAT
COULD ALSO DEVELOP LATER THIS AFTERNOON. WW ISSUANCE MAY BECOME
NECESSARY ACROSS THE REGION ONCE THE SCENARIO BEGINS TO UNFOLD.

DISCUSSION...THUNDERSTORMS ARE CURRENTLY INITIATING AND INCREASING
IN INTENSITY JUST TO THE EAST OF A DEEPENING SFC LOW CENTERED OVER
NE MO. THE STORMS ARE LOCATED ON THE NERN EDGE OF INSTABILITY AND ON
THE NOSE OF A MID-LEVEL JET MOVING INTO THE REGION FROM THE WEST
NORTHWEST. THE STRONG MID-LEVEL FLOW ASSOCIATED WITH THE JET IS
CREATING FAVORABLE SHEAR PROFILES FOR SEVERE STORMS IN SPITE OF THE
WEAK INSTABILITY IN PLACE. THE WSR-88D VWP AT SPRINGFIELD IL
CURRENTLY SHOWS ABOUT 65 KT OF 0-6 KM SHEAR WITH SUBSTANTIAL VEERING
WITH HEIGHT FROM 2 TO 3 KM. THIS COULD SUPPORT A SUPERCELL THREAT AS
LOW-LEVEL MOISTURE ADVECTS NWD INTO THE MCD AREA AND INSTABILITY
INCREASES. 500 MB TEMPS OF -15 C TO -19C WILL BE SUPPORTIVE OF
ISOLATED LARGE HAIL WITH THE MORE INTENSE CORES. IN
ADDITION...LOW-LEVEL LAPSE RATES HAVE STEEPENED SOME ACROSS ECNTRL
IL INTO WRN IND AS SHOWN ON MESOSANALYSIS WITH 0-3 KM LAPSE RATES
NOW AROUND 7.0 C/KM. THIS ALONG WITH THE STRONG WIND FIELDS AT
LOW-LEVELS MAY SUPPORT AN ISOLATED WIND DAMAGE AS CELLS MATURE LATE
THIS AFTERNOON. AN ISOLATED TORNADO THREAT COULD ALSO DEVELOP
ESPECIALLY IF THE CELLS CAN ROTATE AND PERSIST.

..BROYLES/MEAD.. 09/21/2012

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

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

LAT...LON 40548702 41378876 41728987 41669052 41169094 40539089
39348998 38558854 38778681 40548702

Wednesday, September 19, 2012

Red Flag Warning 19:06:43.6811497

...RED FLAG WARNING HAS EXPIRED FOR NORTH CENTRAL AND NORTHEAST
ILLINOIS AND NORTHWEST INDIANA...

WHILE IT WILL REMAIN WINDY THIS EVENING...RELATIVE HUMIDITY
VALUES WILL CONTINUE TO INCREASE AS TEMPERATURES COOL AND MOISTURE
INCREASES AHEAD OF AN APPROACHING COLD FRONT.

Red Flag Warning 11:32:02.4110677

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM CDT /8 PM EDT/
THIS EVENING...

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

* WINDS...SUSTAINED SOUTH 20 TO 30 MPH WITH GUSTS UP TO 40 MPH.

* TIMING...MIDDAY THROUGH EARLY EVENING.

* RELATIVE HUMIDITY...LOWEST AFTERNOON 26 TO 32 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.

USES EXTREME CAUTION WITH SMOKING MATERIALS...OPEN FLAMES...AND
MACHINERY AND POWER TOOLS THAT COULD GENERATE AN EXTERNAL SPARK.

&&

Test Message 11:00:11.3921489

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

Radar Outage Notification 09:34:20.3411539

NOUS63 KLOT 191432
FTMLOT
Message Date: Sep 19 2012 14:32:01KLOT IS BACK ONLINE.

Radar Outage Notification 09:05:39.3241161

NOUS63 KLOT 191404
FTMLOT
Message Date: Sep 19 2012 14:04:19KLOT RADAR WILL BE GOING OFFLINE FOR SUNCHECK. KCM DETECTED

Red Flag Warning 04:14:20.1510740

...RED FLAG WARNING IN EFFECT FROM NOON CDT /1 PM EDT/ TODAY TO
7 PM CDT /8 PM EDT/ THIS EVENING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A RED FLAG
WARNING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY WHICH IS IN
EFFECT FROM NOON CDT /1 PM EDT/ TODAY TO 7 PM CDT /8 PM EDT/ THIS
EVENING.

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

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

* TIMING...THE STRONGEST WINDS WILL DEVELOP LATE THIS MORNING
THROUGH THIS AFTERNOON AND AID IN LOWERING RELATIVE HUMIDITY
VALUES.

* RELATIVE HUMIDITY...AS LOW AS 20 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.

&&

Monday, September 17, 2012

Mesoscale Discussion 13:31:38.4821102

AREAS AFFECTED...LOWER MI...SERN WI...NRN IL

CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY

VALID 171830Z - 171930Z

PROBABILITY OF WATCH ISSUANCE...5 PERCENT

SUMMARY...A HAIL THREAT WILL ACCOMPANY THE STRONGER TSTMS FORMING
ALONG A COLD FRONT ACROSS LOWER MI. ADDITIONAL DEVELOPMENT MAY OCCUR
FARTHER SE THIS AFTERNOON INTO PARTS OF SERN WI AND NRN IL. A FEW OF
THESE STORMS WILL BE CAPABLE OF PRODUCING MARGINALLY SVR HAIL...BUT
A WW IS UNLIKELY.

DISCUSSION...18Z SFC ANALYSIS SHOWS A COLD FRONT ACROSS NRN LOWER MI
EXTENDING SWWD ACROSS LM TOWARDS THE IA/IL BORDER...ATTENDANT TO A
WEAK SFC LOW POSITIONED W OF APN. WEAK LOW-LEVEL CONVERGENCE ALONG
THE COLD FRONT...COMBINED WITH MODEST MIDLEVEL HEIGHT FALLS...HAVE
SUSTAINED TSTMS OVER NRN LOWER MI...OCCASIONALLY DISPLAYING THE
POTENTIAL TO PRODUCE HAIL. ADDITIONAL CONVECTIVE SHOWERS/TSTMS HAVE
BEGUN TO DEVELOP MORE RECENTLY FARTHER S ACROSS ERN IA/SRN WI. THE
COLD FRONT AND ASSOCIATED TSTMS WILL CONTINUE TO PROGRESS
EWD...WHERE STRONGER HEATING HAS OCCURRED WITH TEMPERATURES REACHING
THE 70S F. STEEP MIDLEVEL LAPSE RATES AND MODEST BOUNDARY LAYER
MOISTURE HAVE YIELDED ESTIMATED MLCAPE VALUES OF 500-1000 J/KG.
STRENGTHENING MIDLEVEL FLOW...AND RESULTANT EFFECTIVE SHEAR NEAR 40
KTS...WILL BE SUPPORTIVE OF A THREAT FOR MARGINALLY SVR HAIL
ACCOMPANYING THE STRONGEST CONVECTIVE CORES...DESPITE THE PRESENCE
OF WEAK INSTABILITY. HOWEVER...THE MAGNITUDE/AREAL COVERAGE OF THE
HAIL THREAT IS EXPECTED TO BE TOO LOW TO WARRANT WW CONSIDERATION.

..ROGERS/MEAD.. 09/17/2012

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

ATTN...WFO...APX...GRR...LOT...MKX...DVN...

LAT...LON 45348424 45478393 45458357 44998322 44528338 44048445
43218562 42528673 41978796 41488909 41518988 41969006
42318990 43158827 43618705 44498550 45348424

Sunday, September 16, 2012

Radar Outage Notification 21:33:10.7681410

NOUS63 KLOT 170231
FTMLOT
Message Date: Sep 17 2012 02:31:25THE KLOT Z/R RELATIONSHIP HAS BEEN CHANGED TO CONVECTIVE. tation detected since 9/16/2012 06:38 Z.

Friday, September 14, 2012

Non-Precipitation Watch, Warning, Advisory 07:59:37.2848922

...DENSE FOG ADVISORY WILL EXPIRE AT 8 AM CDT THIS MORNING...

WHILE THERE ARE STILL SOME PATCHY VISIBILITIES BELOW A
MILE...WIDESPREAD DENSE FOG HAS DISSIPATED AND VISIBILITY WILL
CONTINUE TO IMPROVE.

Non-Precipitation Watch, Warning, Advisory 04:00:23.1427876

...DENSE FOG ADVISORY IN EFFECT UNTIL 8 AM CDT THIS MORNING...

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A DENSE FOG
ADVISORY...WHICH IS IN EFFECT UNTIL 8 AM CDT THIS MORNING.

* TIMING...AREAS OF DENSE FOG ARE EXPECTED THROUGH THE EARLY
TO MID MORNING HOURS.

* VISIBILITY...LESS THAN ONE QUARTER OF A MILE.

* IMPACTS...REDUCED VISIBILITY WILL MAKE TRAVEL HAZARDOUS.
MOTORISTS SHOULD REMAIN ALERT FOR CHANGING WEATHER CONDITIONS
AND RAPIDLY REDUCED VISIBILITIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A DENSE FOG ADVISORY MEANS VISIBILITIES WILL FREQUENTLY BE
REDUCED TO LESS THAN ONE QUARTER MILE. IF DRIVING...SLOW DOWN...
USE YOUR HEADLIGHTS...AND LEAVE PLENTY OF DISTANCE AHEAD OF YOU.

&&

Special Weather Statement 01:12:59.433520.8

PATCHY DENSE FOG HAS BEGUN TO DEVELOP ACROSS PORTIONS OF NORTH
CENTRAL ILLINOIS TONIGHT...AND IS EXPECTED TO BECOME MORE
WIDESPREAD THROUGH THE PREDAWN HOURS. VISIBILITY LESS THAN A
QUARTER MILE IS POSSIBLE...ESPECIALLY IN LOW LYING AREAS AND NEAR
CREEKS AND RIVERS. MOTORISTS SHOULD REMAIN ALERT FOR RAPIDLY
CHANGING CONDITIONS.

Wednesday, September 12, 2012

Radar Outage Notification 18:49:03.6706557

NOUS63 KLOT 122347
FTMLOT
Message Date: Sep 12 2012 23:47:19THE KLOT Z/R RELATIONSHIP HAS BEEN CHANGED TO GENERAL STRATIFORM.

Test Message 11:00:56.3925943

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

Saturday, September 8, 2012

Special Weather Statement 20:18:12.7236107

...SPECIAL WEATHER STATEMENT...

AT 814 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SHOWERS AND EMBEDDED STRONG THUNDERSTORMS ALONG A LINE EXTENDING
FROM 19 MILES NORTH OF HEBRON TO SOUTH BELOIT TO 19 MILES NORTHWEST
OF LAKE SUMMERSET...MOVING SOUTHEAST AT 50 MPH. THEY WILL REACH THE
WISCONSIN BORDER AROUND 845 PM CDT AND A LINE FROM ROCKFORD TO
CRYSTAL LAKE TO MUNDELEIN AROUND 915 PM CDT.

WIND GUSTS OF 30 TO 40 MPH ARE POSSIBLE WITH THESE SHOWERS AND
THUNDERSTORMS...ALONG WITH OCCASIONAL CLOUD TO GROUND LIGHTNING AND
BRIEF HEAVY DOWNPOURS.

CITIES AND TOWNS AFFECTED...
SOUTH BELOIT... LAKE SUMMERSET... ROCKTON...
DURAND... ROSCOE... HARVARD...
CAPRON... HEBRON... RICHMOND...

OTHER LOCATIONS AFFECTED...
BOONE COUNTY FAIRGROUNDS...CHAIN O LAKES STATE PARK...COLLEGE OF LAKE
COUNTY...GREAT LAKES NAVAL TRAINING CENTER...IL BEACH STATE PARK...
LAKE COUNTY FIELDERS BASEBALL...

I-90 BETWEEN MILE MARKERS 1 AND 76.
I-39 BETWEEN MILE MARKERS 116 AND 123.

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 4227 8782 4215 8776 4216 8917
4220 8917 4220 8940 4250 8941
TIME...MOT...LOC 0114Z 312DEG 43KT 4271 8844 4256 8888
4254 8969

Friday, September 7, 2012

Mesoscale Discussion 15:24:11.5489649

AREAS AFFECTED...CNTRL IL/IND...SWRN OH

CONCERNING...SEVERE THUNDERSTORM WATCH 628...630...

VALID 072022Z - 072115Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
628...630...CONTINUES.

SUMMARY...CONVECTION IS BLOSSOMING ALONG/BEHIND COLD FRONT FROM NERN
MO TO CNTRL IL...WITH REMNANT CONVECTION PERSISTING ALONG THE
OUTFLOW BOUNDARY EXTENDING INTO SWRN OH. PARTS OF WW 628 WILL LIKELY
BE REPLACED WITH A NEW WW PRIOR TO 21Z.

DISCUSSION...STRENGTHENING LARGE-SCALE ASCENT APPEARS TO BE YIELDING
RAPIDLY INCREASING CONVECTIVE COVERAGE FROM NERN MO TO CNTRL IL. 20Z
SURFACE ANALYSIS PLACED A GRADUALLY ACCELERATING COLD FRONT FROM JLN
TO SPI...INTERSECTING A W/E-ORIENTED OUTFLOW BOUNDARY TO IND TO 25 S
DAY. ALTHOUGH MOST OF THE UPSTREAM DEVELOPMENT APPEARS TO BE
OCCURRING ON THE COOL SIDE OF THE FRONT...THE COMBINATION OF
BUOYANCY/SHEAR IS ROBUST IN THE WARM SECTOR. WITH TSTMS PERSISTING
ALONG THE OUTFLOW BOUNDARY AFTER 22Z...A REPLACEMENT WW APPEARS TO
BE THE MOST PRUDENT COURSE OF ACTION.

..GRAMS.. 09/07/2012

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

ATTN...WFO...ILN...IND...LOT...ILX...LSX...

LAT...LON 40638793 40378712 40078565 39768438 39608390 39138398
38918426 38938544 38928773 39178943 39359012 39559032
39939032 40289028 40759010 40978955 41008903 40638793

Mesoscale Discussion 10:10:02.3623597

AREAS AFFECTED...IND...WRN OH...CNTRL IL

CONCERNING...SEVERE POTENTIAL...SEVERE THUNDERSTORM WATCH LIKELY

VALID 071509Z - 071715Z

PROBABILITY OF WATCH ISSUANCE...80 PERCENT

SUMMARY...ONGOING/LARGELY ELEVATED TSTM CLUSTERS SHOULD BECOME
INCREASINGLY SURFACE-BASED AS DOWNSTREAM AIR MASS HEATS AND
DESTABILIZES. STRONG DEEP-LAYER SPEED SHEAR WILL BE SUFFICIENT FOR
EMBEDDED ORGANIZED UPDRAFTS AND PROBABLE UPSCALE GROWTH ALONG THE
LEADING FLANK WITH A PRIMARY THREAT OF DAMAGING WINDS.

DISCUSSION...ALTHOUGH CONVECTIVE OUTFLOW HAS GENERALLY SURGED S OF
THE REMNANT MCS ACROSS CNTRL IL...THE LEADING PORTION OF THE MCS HAS
TAKEN ON A MORE N/S-ORIENTATION THAT IS PERPENDICULAR TO THE
DEEP-LAYER WLY FLOW. AS SURFACE HEATING CONTINUES DOWNSTREAM AND
WITH CONVECTIVE TEMPERATURES IN THE 80S BASED ON THE 12Z ILN
RAOB...ONGOING ACTIVITY WILL BECOME SURFACE-BASED. SOME UNCERTAINTY
DOES EXISTS ON WHEN THIS TRANSITION WILL OCCUR. BUT AMIDST FAVORABLE
0-6 KM SPEED SHEAR AS SAMPLED BY THE WOLCOTT IND
PROFILER...CONVECTION WILL INTENSIFY AT SOME POINT AND LIKELY
DEVELOP EMBEDDED SHORT-LINE SEGMENTS CAPABLE OF PRODUCING DAMAGING
WINDS.

..GRAMS/THOMPSON.. 09/07/2012

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

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

LAT...LON 41408583 41398416 40538371 39888405 39348492 38888783
39088885 39428904 39948873 40438720 41408583

Thursday, September 6, 2012

Radar Outage Notification 09:28:04.3374315

NOUS63 KLOT 061427
FTMLOT
Message Date: Sep 06 2012 14:27:29KLOT RADAR WILL BE DOWN FOR SEVERAL HOURS FOR PMI'S. KCM

Wednesday, September 5, 2012

Radar Outage Notification 12:44:43.4542417

NOUS63 KLOT 051743
FTMLOT
Message Date: Sep 05 2012 17:43:40KLOT RADAR WHILE BE DOWN FOR AWHILE. WE ARE STILL WORKING ON OUR FIBER LINE.

Saturday, September 1, 2012

Mesoscale Discussion 12:42:25.4528755

AREAS AFFECTED...IL

CONCERNING...SEVERE POTENTIAL...WATCH LIKELY

VALID 011741Z - 011845Z

PROBABILITY OF WATCH ISSUANCE...95 PERCENT

SUMMARY...AFTERNOON HEATING WILL CONTRIBUTE TO FURTHER
DESTABILIZATION ACROSS IL YIELDING AN INCREASING THREAT FOR ISOLATED
TORNADOES AND PERHAPS LOCALLY DAMAGING WINDS.

DISCUSSION...REMNANTS OF TROPICAL SYSTEM ISAAC ARE DRIFTING SLOWLY
EWD ACROSS MO EARLY THIS AFTERNOON. DOWNSTREAM...PARTIAL BREAKS IN
CLOUD COVER HAVE CONTRIBUTED TO STEEPENING LOW LEVEL LAPSE RATES
WITHIN THE BOUNDARY LAYER ACROSS IL. THIS APPEARS TO BE MOSTLY
RESPONSIBLE FOR INCREASE IN SMALL DISCRETE SHOWERS THAT HAVE
DEVELOPED ACROSS MUCH OF CNTRL IL WITHIN FAVORABLY MOIST BUT
MARGINALLY SHEARED ENVIRONMENT. SEVERAL REPORTS OF TORNADOES HAVE
BEEN NOTED WITH THESE SMALL SHOWERS AND ADDITIONAL SHORT-LIVED WEAK
TORNADOES COULD OCCUR.

ADDITIONALLY...A NARROW LINE OF CONVECTION IS GRADUALLY INCREASING
IN INTENSITY ACROSS WCNTRL IL AND THIS APPEARS LOOSELY CORRELATED
WITH A MID LEVEL DRY INTRUSION AND POSSIBLE MID LEVEL VORT LOBE.
ALTHOUGH LIGHTNING HAS YET TO BE NOTED WITH THIS ACTIVITY ADDITIONAL
HEATING SHOULD CONTRIBUTE TO MORE INTENSE UPDRAFTS. LOCALLY
DAMAGING WINDS MAY ULTIMATELY EVOLVE WITH THIS SQUALL LINE ALONG
WITH THE POSSIBILITY FOR ISOLATED TORNADOES.

..DARROW/CORFIDI.. 09/01/2012

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

ATTN...WFO...PAH...LOT...ILX...LSX...DVN...

LAT...LON 41178890 41169004 40459066 39709026 38948985 37618961
37918817 40188786 41178890