Wednesday, August 10, 2016

Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 100937
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
437 AM CDT WED AUG 10 2016


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-
437 AM CDT WED AUG 10 2016 /537 AM EDT WED AUG 10 2016/

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

.DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED:
LIMITED THUNDERSTORM RISK.
LIMITED EXCESSIVE HEAT RISK.

DISCUSSION:

AN ISOLATED THUNDERSTORM IS POSSIBLE GENERALLY SOUTH OF A
BLOOMINGTON TO RENSSELAER LINE THIS AFTERNOON. HEAT INDEX VALUES
WILL APPROACH 100 DEGREES THIS AFTERNOON ROUGHLY FROM THE
KANKAKEE AREA SOUTH.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THURSDAY...
LIMITED SEVERE THUNDERSTORM RISK.
ELEVATED EXCESSIVE HEAT RISK.
FRIDAY...
ELEVATED THUNDERSTORM RISK.
LIMITED EXCESSIVE HEAT RISK.
SATURDAY...
LIMITED THUNDERSTORM RISK.

DISCUSSION:

A COLD FRONT WILL MOVE SLOWLY ACROSS THE AREA ON FRIDAY.
THUNDERSTORMS WILL BE POSSIBLE AHEAD OF THE FRONT LATE THURSDAY
THROUGH THE DAY FRIDAY. THE STRONGEST STORMS COULD PRODUCE
ISOLATED STRONG WIND GUSTS MAINLY ACROSS NORTH CENTRAL ILLINOIS
THURSDAY EVENING. LOCALLY HEAVY RAINFALL WILL BE POSSIBLE WITH
STORMS THROUGH FRIDAY.

HEAT INDEX VALUES WILL TOP OUT IN THE 100 TO 105 DEGREE RANGE
ACROSS THE AREA THURSDAY AFTERNOON.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

GENERAL STORM MOTION OF THE DAY:

MOVING EAST NORTHEAST AT 10 MPH.

&&

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