Thursday, April 9, 2015

Tornado Watch for Mchenry Co., IL until 11:00 PM CDT 04/09

WWUS63 KLOT 091852
WCNLOT

WATCH COUNTY NOTIFICATION FOR WATCH 41
NATIONAL WEATHER SERVICE CHICAGO IL
152 PM CDT THU APR 9 2015


/O.NEW.KLOT.TO.A.0041.150409T1852Z-150410T0400Z/

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 41 IN
EFFECT UNTIL 11 PM CDT /MIDNIGHT EDT/ THIS EVENING FOR THE
FOLLOWING AREAS

IN ILLINOIS THIS WATCH INCLUDES 18 COUNTIES

IN CENTRAL ILLINOIS

LIVINGSTON

IN EAST CENTRAL ILLINOIS

FORD IROQUOIS

IN NORTH CENTRAL ILLINOIS

BOONE DE KALB LA SALLE
LEE OGLE WINNEBAGO

IN NORTHEAST ILLINOIS

COOK DUPAGE GRUNDY
KANE KANKAKEE KENDALL
LAKE IL MCHENRY WILL

IN INDIANA THIS WATCH INCLUDES 5 COUNTIES

IN NORTHWEST INDIANA

BENTON JASPER LAKE IN
NEWTON PORTER

THIS INCLUDES THE CITIES OF...AURORA...BELVIDERE...CHICAGO...
DEKALB...DIXON...FOWLER...GARY...JOLIET...KANKAKEE...MOROCCO...
MORRIS...OREGON...OSWEGO...OTTAWA...PIPER CITY...PONTIAC...
RENSSELAER...ROCKFORD...VALPARAISO...WATSEKA...WAUKEGAN...
WHEATON AND WOODSTOCK.

http://goo.gl/n24WQP
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Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 091620
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1120 AM CDT THU APR 9 2015


WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE-
DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-
IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON-
1120 AM CDT THU APR 9 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...SOME MAY BE SEVERE AND PRODUCE:

LOCALLY HEAVY RAINFALL RESULTING IN LOCALIZED FLOODING.
HAIL UP TO THE SIZE OF HALF DOLLARS.
DAMAGING WINDS UP TO 70 MPH.
FREQUENT CLOUD TO GROUND LIGHTNING.
AND POSSIBLY AN ISOLATED TORNADO.

AREAS AFFECTED AND TIMING:

THERE WILL BE PERIODS OF THUNDERSTORMS THROUGH EARLY TO
POSSIBLY MID EVENING. THE GREATEST THREAT OF ANY SEVERE
THUNDERSTORMS WILL LIKELY BE BETWEEN 2 PM AND 9 PM.

DISCUSSION:

A WARM...MOIST...AND UNSTABLE AIRMASS WILL CONTINUE TO
OVERSPREAD THE REGION TODAY AND SET THE STAGE FOR SCATTERED
SHOWERS AND THUNDERSTORMS TO CONTINUE TO DEVELOP ACROSS THE
REGION UNTIL A COLD FRONT SWEEPS ACROSS THE AREA THIS EVENING.

CONSIDERABLE CLOUD COVER AND THE RELATIVELY HIGH COVERAGE OF
SHOWERS AND THUNDERSTORMS DURING THE DAY TODAY COULD LIMIT THE
MAGNITUDE AND COVERAGE OF THE SEVERE WEATHER THREAT SOMEWHAT
TODAY. HOWEVER...STRONG WINDS ALOFT AND SUFFICIENT INSTABILITY
COULD STILL ALLOW FOR SOME OF THE THUNDERSTORMS TO BECOME
SEVERE. THE PRIMARY THREATS APPEAR TO BE LARGE HAIL AND
DAMAGING WINDS...HOWEVER AN ISOLATED TORNADO CANNOT BE RULED
OUT.

ALSO...A VERY MOIST AIR MASS IS IN PLACE AND ANY THUNDERSTORM
CAN GO ON TO PRODUCE TORRENTIAL RAINFALL WHICH COULD RESULT IN
LOCALIZED FLOODING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THERE IS A CHANCE OF THUNDERSTORMS SUNDAY NIGHT...AND AGAIN
TUESDAY INTO WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING.

&&

http://goo.gl/XNKtC5
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Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 090945
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
445 AM CDT THU APR 9 2015


WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE-
DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-
IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON-
445 AM CDT THU APR 9 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...SOME MAY BE SEVERE AND PRODUCE:

LOCALLY HEAVY RAINFALL RESULTING IN LOCALIZED FLOODING.
HAIL TO TWO INCHES IN DIAMETER.
WIND GUSTS TO 70 MPH.
FREQUENT CLOUD TO GROUND LIGHTNING.
ISOLATED TORNADOES.

AREAS AFFECTED AND TIMING:

SEVERAL CLUSTERS OF SCATTERED THUNDERSTORMS WILL LIKELY
AFFECT THE AREA AT TIMES THROUGH MIDDAY. SOME OF THESE STORMS
INITIALLY COULD PRODUCE LARGE HAIL. SEVERE THUNDERSTORMS WILL
LIKELY BECOME MORE NUMEROUS FROM MID AFTERNOON THROUGH EARLY
THIS EVENING...WITH DAMAGING WINDS...LARGE HAIL AND THE
POTENTIAL FOR TORNADOES MOST LIKELY DURING THE LATE AFTERNOON
AND EARLY EVENING HOURS. THE THREAT OF THUNDERSTORMS SHOULD
DECREASE QUICKLY WITH THE PASSAGE OF THE COLD FRONT THIS EVENING.

DISCUSSION:

SEVERAL CLUSTERS OF SCATTERED THUNDERSTORMS WERE ONGOING EARLY
THIS MORNING ACROSS THE MIDWEST...IN A REGION OF BROAD SOUTHWEST
FLOW ACROSS A NEARLY STATIONARY FRONTAL BOUNDARY WHICH STRETCHED
FROM SOUTHERN IOWA EAST ACROSS CENTRAL ILLINOIS AND INDIANA.
SCATTERED THUNDERSTORMS WILL LIKELY CONTINUE TO DEVELOP IN
CLUSTERS THROUGH EARLY AFTERNOON...PERIODICALLY AFFECTING PARTS
OF THE OUTLOOK AREA. THE STRONGEST OF THESE STORMS MAY HAVE THE
CAPABILITY OF PRODUCING LARGE HAIL THIS MORNING. THIS AFTERNOON
THE FRONT WILL LIFT NORTH AS A WARM FRONT AHEAD OF AN APPROACHING
AREA OF DEEP LOW PRESSURE. THE THREAT OF SEVERE WEATHER WILL
GENERALLY INCREASE DURING THE AFTERNOON AS A MORE UNSTABLE AIR
MASS SPREADS NORTH WITH THE WARM FRONT. IT IS SOMEWHAT UNCLEAR
HOW THE EFFECTS OF EARLIER STORMS WILL AFFECT STORM EVOLUTION
THIS AFTERNOON...BUT IT IS LIKELY THAT SEVERE THUNDERSTORMS WILL
DEVELOP AND BECOME ORGANIZED AHEAD OF THE COLD FRONT LATE THIS
AFTERNOON AND EARLY THIS EVENING...AND IT IS AT THIS TIME THAT
THE GREATEST THREAT OF DAMAGING WINDS...LARGE HAIL AND A FEW
TORNADOES WILL OCCUR. THE LOW PASS ACROSS WISCONSIN THIS
THIS EVENING...WITH THE TRAILING COLD FRONT PUSHING ACROSS THE
OUTLOOK AREA FROM WEST TO EAST AND EXITING BY MIDNIGHT. THE
THREAT OF THUNDERSTORMS AND SEVERE WEATHER WILL DECREASE
QUICKLY WITH THE PASSAGE OF THE FRONT.

IN ADDITION...DENSE FOG IS LIKELY THIS MORNING ACROSS NORTHEAST
ILLINOIS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

THERE IS A CHANCE OF THUNDERSTORMS SUNDAY NIGHT...AND AGAIN
TUESDAY INTO WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL LIKELY BE NEEDED THIS AFTERNOON AND
THIS EVENING.

&&

http://goo.gl/cKKdSd
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Wednesday, April 8, 2015

Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 082128
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
428 PM CDT WED APR 8 2015


WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE-
DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-
IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON-
428 PM CDT WED APR 8 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...SOME MAY PRODUCE:

LOCALLY HEAVY RAINFALL RESULTING IN LOCALIZED FLOODING.
HAIL TO TWO INCHES IN DIAMETER.
WIND GUSTS TO 50 MPH.
FREQUENT CLOUD TO GROUND LIGHTNING.

AREAS AFFECTED AND TIMING:

SCATTERED THUNDERSTORMS ARE POSSIBLE THIS EVENING...ESPECIALLY
SOUTH OF I-80...WITH GRADUALLY IMPROVING CHANCES FOR
THUNDERSTORMS LATE THIS EVENING AND OVERNIGHT.

DISCUSSION:

AS MOISTURE SLOWLY INCREASES ACROSS THE AREA
TONIGHT...SCATTERED STORMS ARE POSSIBLE THIS EVENING...WITH
GRADUALLY INCREASING SUPPORT FOR STORMS LATER THIS EVENING AND
OVERNIGHT. MODEST INSTABILITY ALOFT WILL SUPPORT LARGE HAIL IN
THE STRONGEST OF STORMS THAT DEVELOP...THOUGH THERE IS
UNCERTAINTY ON JUST HOW WIDESPREAD ANY STORMS WILL BE
OVERNIGHT. STORMS WITH ANY POTENTIAL FOR GUSTY WINDS SHOULD BE
CONFINED TO MAINLY SOUTH OF U.S. HIGHWAY 24.

IN ADDITION...DENSE FOG MAY OCCUR NEAR THE LAKE SHORE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

SOME STORMS...POSSIBLY WIDESPREAD...ARE LIKELY THURSDAY MORNING
WITH LARGE HAIL BEING THE MAIN HAZARD WITH ANY SEVERE STORMS
DURING THAT TIME. THERE CONTINUES A THREAT FOR POSSIBLE
WIDESPREAD SEVERE THUNDERSTORMS...INCLUDING SOME
TORNADOES...FROM THE MIDDLE OF THURSDAY AFTERNOON INTO THURSDAY
EVENING. WHILE THE INGREDIENTS ARE THERE FOR SIGNIFICANT SEVERE
WEATHER...THEY WILL NEED TO COME TOGETHER JUST RIGHT...AND IF
EVEN JUST ONE INGREDIENT FAILS TO MATERIALIZE IN TIME THE THREAT
AND COVERAGE WILL DECREASE SUBSTANTIALLY.

THERE IS ANOTHER CHANCE OF THUNDERSTORMS SUNDAY NIGHT AND MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED LATER TONIGHT AND THURSDAY
MORNING...THOUGH WOULD SEEM MOST BENEFICIAL DURING PART OF
THURSDAY AFTERNOON AND EARLY THURSDAY EVENING.

&&

http://goo.gl/UYDSGh
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Public Severe Weather Outlook for Mchenry Co., IL

WOUS40 KWNS 081701
PWOSPC


PUBLIC SEVERE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1201 PM CDT WED APR 08 2015

...Severe thunderstorms expected over parts of the southern and
central Plains to the Missouri Ozarks later today and tonight...

* LOCATIONS...
Southeast Kansas
Missouri
Northern Oklahoma
Western Illinois

* HAZARDS...
Several tornadoes, a few intense
Scattered large hail, some baseball size
Isolated damaging winds

* SUMMARY...
Very large hail, damaging wind and tornadoes are expected over
parts of the central Plains and lower Missouri Valley this
afternoon and evening. Other strong to severe storms may develop
from parts of Texas northeastward into the Ohio Valley and
central Appalachians.

Preparedness actions...

Review your severe weather safety procedures for the possibility
of dangerous weather today. Stay tuned to NOAA Weather Radio,
weather.gov, or other media for watches and warnings. A tornado
watch means that conditions are favorable for tornadoes to form
during the next several hours. If a tornado warning is issued for
your area, move to a place of safety, ideally in a basement or
interior room on the lowest floor of a sturdy building.

&&

..Cohen/Corfidi.. 04/08/2015



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http://goo.gl/xHoImt
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Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 081655
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1155 AM CDT WED APR 8 2015


WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE-
DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-
IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON-
1155 AM CDT WED APR 8 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...SOME MAY PRODUCE:

LOCALLY HEAVY RAINFALL RESULTING IN LOCALIZED FLOODING.
HAIL TO TWO INCHES IN DIAMETER.
WIND GUSTS TO 60 MPH.
BRIEF TORNADO.
FREQUENT CLOUD TO GROUND LIGHTNING.

AREAS AFFECTED AND TIMING:

SCATTERED THUNDERSTORMS ARE LIKELY TO INCREASE IN COVERAGE FROM
WESTERN ILLINOIS ACROSS NORTHERN ILLINOIS DURING THE MID TO
LATE AFTERNOON...WITH THE GREATEST COVERAGE ACROSS THE AREA
BEING TONIGHT.

DISCUSSION:

AS THUNDERSTORMS ACROSS WESTERN ILLINOIS EARLY THIS AFTERNOON
APPROACH THE AREA...THEY WILL LIKELY INCREASE IN COVERAGE
AND IN INTENSITY...ESPECIALLY DURING THE EVENING. SEVERE STORMS
ARE POSSIBLE THROUGHOUT THE DURATION OF THE STORMS...WITH LARGE
HAIL BEING THE GREATEST THREAT. THERE IS AN OUTSIDE CHANCE THAT
SOME OF THE STORMS CLOSEST TO THE WARM FRONTAL
BOUNDARY...NAMELY ALONG AND SOUTH OF U.S. HIGHWAY 24...COULD
PRODUCE STRONG WINDS OR EVEN A BRIEF TORNADO.

IN ADDITION...AREAS OF DENSE FOG ARE LIKELY.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THE THREAT EXISTS FOR AN OUTBREAK OF SEVERE WEATHER
THUNDERSTORMS...INCLUDING THE POTENTIAL FOR TORNADOES...LATE
THURSDAY AFTERNOON INTO THURSDAY EVENING. ALL OF THE INGREDIENTS
NEED TO COME TOGETHER JUST RIGHT FOR A SIGNIFICANT SEVERE WEATHER
OUTBREAK...AND IF EVEN JUST ONE INGREDIENT FAILS TO MATERIALIZE
THE THREAT DECREASES SUBSTANTIALLY. EARLY INDICATIONS ARE THAT
MANY OF THE INGREDIENTS FOR A SIGNIFICANT OUTBREAK OF SEVERE
THUNDERSTORMS COULD BE IN PLACE THURSDAY AND LATER FORECASTS
AND OUTLOOKS SHOULD BE CLOSELY MONITORED.

THERE IS ANOTHER CHANCE OF THUNDERSTORMS SUNDAY NIGHT AND MONDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY LATER THIS AFTERNOON INTO
TONIGHT...AND IS PROBABLE FOR A PERIOD ON THURSDAY AFTERNOON AND
EVENING.

&&

http://goo.gl/kaO3TB
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Special Weather Statement for Mchenry Co., IL

WWUS83 KLOT 081424
SPSLOT

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
ISSUED BY NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
924 AM CDT WED APR 8 2015


WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LAKE IN-PORTER-NEWTON-
JASPER-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET...KANKAKEE...GARY...
VALPARAISO...MOROCCO...RENSSELAER
924 AM CDT WED APR 8 2015

WIDESPREAD FOG WITH VISIBILITIES AROUND A HALF MILE DEVELOPED THIS
MORNING AS RAIN EXITED THE AREA. LOOK FOR AREAS OF FOG TO PERSIST
THROUGH 11 AM THIS MORNING. VISIBILITIES MAY BE REDUCED TO A
QUARTER MILE AT TIMES. USE CAUTION IF TRAVELING.

http://goo.gl/Dqy1HE
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