FLUS43 KLOT 101632
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1132 AM CDT WED JUN 10 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-
1132 AM CDT WED JUN 10 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...THE STRONGEST OF WHICH MAY PRODUCE:
HEAVY RAINFALL AND LOCALIZED FLOODING.
QUARTER SIZE HAIL OR LARGER.
WIND GUSTS IN EXCESS OF 60 MPH.
AREAS AFFECTED AND TIMING:
AFTER 3 PM...THE CHANCE FOR STORMS WILL BE SOUTH OF I-88...WITH
THE HIGHEST LIKELIHOOD ALONG AND SOUTH OF A MENDOTA TO CHICAGO
LINE. STORMS ARE EXPECTED TO INCREASE IN COVERAGE THROUGH
SUNSET... THEN GRADUALLY FADE INTO THE OVERNIGHT. THE CHANCE
FOR SEVERE STORMS AND HEAVY RAINFALL IS MAINLY BETWEEN 3 PM AND
MIDNIGHT.
DISCUSSION:
A FRONTAL BOUNDARY MOVING INTO AREA THIS MORNING WILL SLOW AND
BE NEAR THE U.S. HIGHWAY 34 CORRIDOR DURING PEAK HEATING.
WITHIN A WARM AND HUMID AIR MASS...THIS BOUNDARY WILL SERVE AS
A FOCUS FOR SCATTERED TO NUMEROUS STORMS. SOME OF THESE STORMS
COULD BECOME SEVERE. SLOW STORM MOTIONS WILL SUPPORT THE THREAT
FOR LOCALIZED FLOODING...ESPECIALLY FOR AREAS THAT HAVE HAD A
HIGH AMOUNT OF RAINFALL SINCE LAST WEEKEND.
HEAT INDEX READINGS MAY REACH 100 DEGREES FOR SOME ILLINOIS
LOCATIONS MAINLY SOUTH OF INTERSTATE 80. THE FIRST TIME OF THE
YEAR WITH SUCH WARMTH CAN CATCH SOME OFF GUARD...SO ENSURE TO
REVIEW AND PRACTICE HEAT SAFETY AS NEEDED.
PORTIONS OF THE IROQUOIS AND KANKAKEE RIVERS WILL REMAIN IN FLOOD
STAGE.
.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.
PERIODIC THUNDERSTORMS ARE PROBABLE THURSDAY THROUGH MONDAY.
WHILE THERE IS UNCERTAINTY ON SPECIFICS...THE PATTERN INDICATES
HEAVY RAINFALL WILL AT LEAST BE POSSIBLE MUCH OF THE TIME...AND
GIVEN AN ACTIVE PATTERN COULD PRESENT FLOODING CONCERNS.
PORTIONS OF THE IROQUOIS AND KANKAKEE RIVERS WILL REMAIN IN FLOOD
STAGE THROUGH LATE THIS WEEK.
.SPOTTER INFORMATION STATEMENT...
SPOTTERS MAY BE NEEDED AFTER 3 PM TODAY.
&&
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