Wednesday, August 20, 2014

Special Weather Statement for Mchenry Co., IL

WWUS83 KLOT 210127
SPSLOT

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
827 PM CDT WED AUG 20 2014


WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DUPAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
INCLUDING THE CITIES OF...ROCKFORD...BELVIDERE...WOODSTOCK...
WAUKEGAN...OREGON...DIXON...DEKALB...AURORA...WHEATON...CHICAGO...
OTTAWA...OSWEGO...MORRIS...JOLIET...KANKAKEE...PONTIAC...
WATSEKA...PAXTON...GARY...VALPARAISO...MOROCCO...RENSSELAER...
FOWLER
827 PM CDT WED AUG 20 2014 /927 PM EDT WED AUG 20 2014/

...A PERIOD OR TWO OF HEAVY RAINFALL POSSIBLE ACROSS THE AREA
THROUGH FRIDAY MORNING...

AS A WARM FRONT LIFTS NORTH AND AN UPPER LEVEL DISTURBANCE MOVES
OVER THE AREA LATE TONIGHT INTO THURSDAY...SCATTERED THUNDERSTORMS
ARE EXPECTED TO DEVELOP ACROSS PORTIONS OF THE AREA. GIVEN THE
VERY MOIST AIR MASS IN PLACE OVER THE REGION...ANY THUNDERSTORMS
WILL BE CAPABLE OF PRODUCING TORRENTIAL DOWNPOURS. A SECOND ROUND
OF THUNDERSTORMS IS POSSIBLE THURSDAY NIGHT...AND THIS COULD AGAIN
LEAD TO TORRENTIAL DOWNPOURS...ALONG WITH THE POSSIBILITY OF
FLOODING. AT THIS TIME...CONFIDENCE IS LOW AS TO WHERE THE MOST
WIDESPREAD THUNDERSTORM ACTIVITY WILL FOCUS. HOWEVER...THE
INGREDIENTS ARE IN PLACE FOR AT LEAST MINOR URBAN AND SMALL STREAM
FLOODING FOR PARTS OF THE AREA LATE TONIGHT INTO THURSDAY MORNING
AND AGAIN THURSDAY NIGHT. CONCERN EXISTS FOR LOCALIZED FLASH
FLOODING OVER AREAS THAT EXPERIENCE CONTINUED THUNDERSTORM
ACTIVITY FOR A LONGER PERIOD OF TIME.

STAY TUNED TO LATER FORECASTS AND THE POSSIBLE ISSUANCE OF A FLASH
FLOOD WATCH AT WEATHER.GOV/CHICAGO.

http://goo.gl/gedXMN
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