Sunday, May 10, 2015

Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 101534
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1034 AM CDT SUN MAY 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-
1034 AM CDT SUN MAY 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...SOME OF WHICH MAY PRODUCE:

CLOUD TO GROUND LIGHTNING.
LOCALLY HEAVY RAINFALL.
ISOLATED WIND GUSTS TO 60 MPH.
ISOLATED HAIL TO THE SIZE OF QUARTERS.

AREAS AFFECTED AND TIMING:

ISOLATED STORMS THIS AFTERNOON SOUTH OF INTERSTATE 80. THIS
EVENING AREA WIDE...WITH THE STRONGEST STORMS EXPECTED
GENERALLY ALONG AND SOUTHWEST OF A LINE FROM OREGON ILLINOIS
TO CRESCENT CITY ILLINOIS.

DISCUSSION:

THUNDERSTORMS ARE EXPECTED TO DEVELOP LATE THIS AFTERNOON AND
EARLY THIS EVENING ALONG A NORTHWARD LIFTING WARM FRONT. AS
MOISTURE AND INSTABILITY INCREASE EARLY THIS EVENING...COVERAGE
AND INTENSITY OF THESE STORMS WILL LIKELY INCREASE THROUGH MID
TO LATE EVENING. THUNDERSTORM INTENSITY SHOULD DIMINISH TOWARDS
MIDNIGHT...BUT SMALL HAIL AND LOCALLY HEAVY RAINFALL WILL STILL
BE A POSSIBILITY FOR ALL AREAS OVERNIGHT ACROSS THE OUTLOOK AREA.

AREA STREAMS WILL REMAIN AT OR NEAR BANKFULL CONDITIONS...ESPECIALLY
FOR PORTIONS OF THE ILLINOIS RIVER.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

AREA STREAMS WILL REMAIN AT OR NEAR BANKFULL CONDITIONS...ESPECIALLY
FOR PORTIONS OF THE ILLINOIS RIVER.

THUNDERSTORMS ARE POSSIBLE MONDAY ACROSS EAST CENTRAL ILLINOIS
AND
NORTHWEST INDIANA...SOME OF WHICH COULD BE STRONG.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED THIS EVENING...ALONG AND SOUTHWEST OF A
LINE FROM OREGON ILLINOIS TO CRESCENT CITY ILLINOIS.

&&

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