FLUS43 KLOT 120951
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
451 AM CDT SAT JUL 12 2014
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-
451 AM CDT SAT JUL 12 2014 /551 AM EDT SAT JUL 12 2014/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TODAY AND TONIGHT.
WEATHER HAZARDS EXPECTED:
SCATTERED THUNDERSTORMS...A FEW MAY PRODUCE:
TORRENTIAL DOWNPOURS.
FREQUENT CLOUD TO GROUND LIGHTNING.
ISOLATED DAMAGING WIND GUSTS IN EXCESS OF 60 MPH.
AREAS AFFECTED AND TIMING:
SHOWERS WITH A FEW THUNDERSTORMS THIS MORNING ALONG AND
EAST OF A PONTIAC TO KANKAKEE LINE. ADDITIONAL THUNDERSTORMS
ARE EXPECTED TO DEVELOP LATE THIS AFTERNOON WEST OF A
ROCKFORD TO LASALLE LINE...THEN STEADILY OVERSPREAD ALL OF
NORTHERN ILLINOIS AND NORTHWEST INDIANA TONIGHT.
DISCUSSION:
WARM AND VERY MOIST AIR WILL CONTINUE TO LIFT NORTH ACROSS
NORTHERN ILLINOIS AND NORTHWEST INDIANA TODAY. THIS MORNING
INSTABILITY WILL REMAIN MINIMAL...HOWEVER BY THE AFTERNOON AND
EARLY EVENING HOURS THE ATMOSPHERE IS EXPECTED TO BECOME
UNSTABLE. A MOIST FRONTAL BOUNDARY WILL LIFT OVER NORTHERN
ILLINOIS AND SLOW...WHICH WILL BECOME THE FOCUS FOR POTENTIALLY
THUNDERSTORMS PRODUCING LOCALLY HEAVY RAINFALL LATER TODAY
THROUGH OVERNIGHT. THESE STORMS MAY ALSO PRODUCE AN ISOLATED
WIND GUSTS IN EXCESS OF 60 MPH...BUT BY FAR THE GREATEST
THREAT WILL BE HEAVY RAIN AND POSSIBLE FLOODING. THUNDERSTORMS
MAY BE SLOW TO MOVE THIS EVENING FROM WEST TO EAST.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
PERIODIC CHANCES FOR THUNDERSTORMS SUNDAY AFTERNOON...AND AGAIN
MONDAY AFTERNOON MAINLY SOUTH OF DIXON TO CHICAGO.
.SPOTTER INFORMATION STATEMENT...
SPOTTERS MAY BE NEEDED LATER THIS AFTERNOON THROUGH TONIGHT.
&&
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