Thursday, July 7, 2016

Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 070954
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
454 AM CDT THU JUL 7 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-
454 AM CDT THU JUL 7 2016 /554 AM EDT THU JUL 7 2016/

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

.DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED:
SIGNIFICANT SEVERE THUNDERSTORM RISK...WITH AN ASSOCIATED:
LIMITED HAIL RISK...UP TO QUARTER SIZE.
SIGNIFICANT THUNDERSTORM WIND DAMAGE RISK...UP TO 70 MPH.
LIMITED EXCESSIVE HEAT RISK.

DISCUSSION:

THE POTENTIAL FOR SEVERE THUNDERSTORMS WILL INCREASE ACROSS THE
OUTLOOK AREA LATE THIS AFTERNOON AND TONIGHT. CURRENT INDICATIONS
ARE THAT SEVERE THUNDERSTORMS WILL INITIATE ACROSS PARTS OF IOWA
AND MINNESOTA THIS AFTERNOON...AND WILL DEVELOP INTO A QUICK
MOVING LINE OF SEVERE STORMS WHICH MAY MOVE ACROSS PORTIONS OF
NORTHERN AND CENTRAL ILLINOIS AND INDIANA LATER THIS EVENING.

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

FRIDAY...
LIMITED MORNING THUNDERSTORM RISK.
HIGH SWIM RISK FOR NORTHWEST INDIANA LAKE MICHIGAN BEACHES.
SATURDAY...
HIGH SWIM RISK FOR LAKE MICHIGAN BEACHES.
TUESDAY...
LIMITED THUNDERSTORM RISK.
WEDNESDAY...
LIMITED THUNDERSTORM RISK.
LIMITED EXCESSIVE HEAT RISK.

DISCUSSION:

THUNDERSTORMS WILL EXIT THE AREA EARLY FRIDAY MORNING AS A
WEAK COLD FRONT MOVES THROUGH THE AREA.

A PERIOD OF GUSTY NORTHERLY WINDS WILL PRODUCE HIGH WAVES AND
CREATE A HIGH SWIM RISK FOR LAKE MICHIGAN BEACHES SATURDAY INTO
SUNDAY.

THERE IS ANOTHER CHANCE OF THUNDERSTORMS TUESDAY AND WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED LATE TODAY.

GENERAL STORM MOTION OF THE DAY:

MOVING FROM THE WEST NORTHWEST AT 25 TO 35 MPH.

&&


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