Tuesday, July 12, 2016

Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 122129
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
429 PM CDT TUE JUL 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-
429 PM CDT TUE JUL 12 2016 /529 PM EDT TUE JUL 12 2016/

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

.DAY ONE...TONIGHT.

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

DISCUSSION:

SCATTERED THUNDERSTORMS ARE LIKELY UNTIL EARLY EVENING GENERALLY
ALONG AND EAST OF INTERSTATE 57. THE PRIMARY THREAT FROM ANY
THUNDERSTORMS WILL BE HEAVY DOWNPOURS AND CLOUD TO GROUND
LIGHTNING...HOWEVER AN ISOLATED SEVERE THUNDERSTORM WITH VERY
LOCALIZED DAMAGING WINDS CANNOT BE RULED OUT.

ADDITIONAL SCATTERED THUNDERSTORMS ARE POSSIBLE OVERNIGHT AND
TOWARD SUNRISE WEDNESDAY MORNING.

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

WEDNESDAY...
LIMITED FLOODING RISK.
ELEVATED SEVERE THUNDERSTORM RISK.
LIMITED EXCESSIVE HEAT RISK.

THURSDAY...
LIMITED THUNDERSTORM RISK.

SATURDAY AND SUNDAY...
LIMITED THUNDERSTORM RISK.

MONDAY...
LIMITED THUNDERSTORM RISK.
LIMITED EXCESSIVE HEAT RISK.

DISCUSSION:

WIDESPREAD THUNDERSTORMS ARE LIKELY WEDNESDAY MORNING WITH SOME
SCATTERED THUNDERSTORMS POSSIBLE IN THE AFTERNOON. A MORE
SUBSTANTIAL RISK OF THUNDERSTORMS...INCLUDING SOME SEVERE WITH
DAMAGING WINDS...WILL COME WEDNESDAY EVENING. IN ADDITION TO THE
SEVERE THREAT...THERE IS ALSO A POTENTIAL FOR HEAVY RAINFALL WHICH
COULD RESULT IN LOCALIZED FLOODING. WHILE THUNDERSTORM ACTIVITY
SHOULD DIMINISH AFTER MIDNIGHT...THERE IS A CHANCE SOME ISOLATED
THUNDERSTORMS COULD LINGER OVER NORTHWEST INDIANA AND SOUTH OF
THE KANKAKEE RIVER IN ILLINOIS INTO THURSDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED WEDNESDAY EVENING.

GENERAL STORM MOTION OF THE DAY:

EAST 15 TO 25 MPH.

&&


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