Thursday, September 4, 2014

Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 040943
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
443 AM CDT THU SEP 4 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-
443 AM CDT THU SEP 4 2014 /543 AM EDT THU SEP 4 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...SOME OF WHICH MAY PRODUCE:
HEAVY RAINFALL AND LOCALIZED FLOODING.
WIND GUSTS ABOVE 35 MPH.

AREAS AFFECTED AND TIMING:

NUMEROUS THUNDERSTORMS ACROSS NORTHWEST AND NORTH CENTRAL
ILLINOIS EARLY THIS MORNING WILL GRADUALLY DIMINISH IN COVERAGE
THROUGH MID TO LATE MORNING AS THEY MOVE EAST. THERE IS A CHANCE
FOR THUNDERSTORMS AGAIN OVERNIGHT TONIGHT.

DISCUSSION:

MOIST AIR RETURNING TO THE REGION HAS CREATED NUMEROUS
THUNDERSTORMS THIS MORNING IN NORTHWEST AND NORTH CENTRAL
ILLINOIS. AS THE FORCING GRADUALLY FADES THROUGH THE MORNING SO
WILL THE STORMS. LOCALIZED HEAVY RAINFALL COULD OCCUR...AS WELL
AS ISOLATED STRONG WIND GUSTS.

WARM AND HUMID WEATHER FOR LATE SUMMER WILL BE SEEN THIS
AFTERNOON. HEAT INDEX READINGS MAY PEAK NEAR 100 DEGREES...NAMELY
IN PARTS OF NORTH CENTRAL ILLINOIS.


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

THERE IS A GOOD CHANCE OF THUNDERSTORMS FRIDAY. A FEW OF THESE
STORMS COULD BE STRONG AND PRODUCE GUSTY WINDS...ESPECIALLY ALONG
AND SOUTH OF INTERSTATE 80. THERE IS ALSO A THREAT FOR LOCALLY
HEAVY RAINFALL...WHICH COULD RESULT IN LOCALIZED FLOODING INTO
FRIDAY EVENING.

THE NEXT CHANCE OF THUNDERSTORMS WILL BE LATE MONDAY NIGHT THROUGH
WEDNESDAY.

WARM AND HUMID WEATHER FOR LATE SUMMER IS EXPECTED TO PERSIST
INTO EARLY FRIDAY AFTERNOON ACROSS PORTIONS OF EAST CENTRAL
ILLINOIS AND NORTHWESTERN INDIANA. SOME LOCATIONS HERE COULD AGAIN
EXPERIENCE HEAT INDEX READINGS APPROACHING 100 DEGREES.

DANGEROUS SWIMMING CONDITIONS ARE POSSIBLE AT LAKE MICHIGAN
BEACHES ON SATURDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

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