Tuesday, June 17, 2014

Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 171002
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
502 AM CDT TUE JUN 17 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-
502 AM CDT TUE JUN 17 2014 /602 AM EDT TUE JUN 17 2014/

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

.DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS WHICH MAY PRODUCE:
DAMAGING WIND GUSTS IN EXCESS OF 60 MPH
HAIL TO THE SIZE OF QUARTERS
ISOLATED TORNADOES
TORRENTIAL DOWNPOURS AND POSSIBLE FLOODING

AREAS AFFECTED AND TIMING:

THE BEST ORGANIZED STORMS ARE EXPECTED ALONG AND NORTH OF A LINE
FROM STREATOR TO KANKAKEE TO HEBRON THIS MORNING BEFORE 9 AM CDT
THEN MAINLY ALONG AND NORTH OF INTERSTATE 80 THIS EVENING AND
TONIGHT. SCATTERED STORMS ARE ALSO POSSIBLE THIS AFTERNOON.


DISCUSSION:

A LINE OF STRONG TO SEVERE THUNDERSTORMS WILL MOVE ACROSS
NORTHERN ILLINOIS PRIOR TO THE 9 AM CDT HOUR AND MAY PRODUCE
DAMAGING WIND GUSTS AND POSSIBLY AN ISOLATED BRIEF TORNADO.
THUNDERSTORM ACTIVITY IS EXPECTED TO DIMINISH FROM MID MORNING
THROUGH MIDDAY WITH A CHANCE FOR ADDITIONAL THUNDERSTORMS THIS
AFTERNOON...MAINLY NORTH OF INTERSTATE 80. A FRONTAL BOUNDARY IS
EXPECTED TO BECOME THE FOCUS FOR NEW THUNDERSTORM DEVELOPMENT
THIS EVENING AND TONIGHT WITH SEVERAL COMPLEXES OF STORMS
POSSIBLE. AT THIS TIME IT IS UNCLEAR WHERE EXACTLY THIS BOUNDARY
WILL SET UP AS IT WILL BE AFFECTED BY CONVECTION THIS MORNING.
AT THIS TIME...AREAS ALONG AND NORTH OF INTERSTATE 80 ARE THE
MOST LIKELY TO BE AFFECTED THIS EVENING AND TONIGHT WITH THE
MAIN THREATS BEING DAMAGING WIND GUSTS AND HEAVY RAINFALL WHICH
COULD LEAD TO ISOLATED FLOODING.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THUNDERSTORMS WILL CONTINUE TO BE POSSIBLE WEDNESDAY THROUGH
SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED THROUGH TONIGHT.

&&

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