Friday, August 12, 2016

Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 120945
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
445 AM CDT FRI AUG 12 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-
445 AM CDT FRI AUG 12 2016 /545 AM EDT FRI AUG 12 2016/

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

.DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED:
SIGNIFICANT THUNDERSTORM RISK...WITH AN ASSOCIATED:
LIMITED THUNDERSTORM WIND DAMAGE RISK...UP TO 60 MPH.
ELEVATED FLASH FLOODING RISK.
LIMITED EXCESSIVE HEAT RISK.

DISCUSSION:

SCATTERED THUNDERSTORMS OVER NORTHWEST ILLINOIS ARE EXPECTED TO
SLOWLY WEAKEN THROUGH MID MORNING. NEW THUNDERSTORM DEVELOPMENT
IS EXPECTED LATE THIS MORNING OR EARLY THIS AFTERNOON ACROSS
NORTHWEST ILLINOIS AND THEN WILL SPREAD ACROSS THE REST OF THE
AREA DURING THE AFTERNOON AND INTO NORTHWEST INDIANA THIS EVENING.
THE MAIN THREAT FROM THESE THUNDERSTORMS WILL BE TORRENTIAL RAIN
WHICH MAY LEAD TO LOCALIZED FLASH FLOODING. SOME OF THE STRONGEST
STORMS MAY BE CAPABLE OR PRODUCING STRONG WIND GUSTS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

SATURDAY...
ELEVATED THUNDERSTORM RISK.
MONDAY THROUGH THURSDAY...
LIMITED THUNDERSTORM RISK.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED THIS AFTERNOON AND THIS EVENING.

GENERAL STORM MOTION OF THE DAY:

MOVING NORTHEAST 15 TO 25 MPH.

&&

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