Wednesday, July 20, 2016

Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 200946
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
446 AM CDT WED JUL 20 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-
446 AM CDT WED JUL 20 2016 /546 AM EDT WED JUL 20 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...WITH AN ASSOCIATED:
LIMITED HAIL RISK...UP TO QUARTER SIZE.
LIMITED THUNDERSTORM WIND DAMAGE RISK...UP TO 60 MPH.
LIMITED EXCESSIVE HEAT RISK.

DISCUSSION:

SCATTERED THUNDERSTORMS...SOME MARGINALLY SEVERE...ARE POSSIBLE
THIS AFTERNOON.

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

THURSDAY AND FRIDAY...
LIMITED THUNDERSTORM RISK.
SIGNIFICANT EXCESSIVE HEAT RISK.
SATURDAY...
LIMITED THUNDERSTORM RISK.
ELEVATED EXCESSIVE HEAT RISK.
SUNDAY...
LIMITED THUNDERSTORM RISK.

DISCUSSION:

POTENTIALLY DANGEROUS HEAT WILL ARRIVE THURSDAY AND FRIDAY WITH
SOME IMPROVEMENT POSSIBLE SATURDAY. MAXIMUM HEAT INDEX VALUES
COULD PEAK NEAR 110 DEGREES ON THURSDAY AND FRIDAY...AND 100 TO 110 ON
SATURDAY.

AREAS NORTH AND CLOSE TO THE LAKE COULD HAVE SOME RELIEF ON
FRIDAY DUE TO POTENTIAL THUNDERSTORMS THURSDAY NIGHT INTO
FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS MAY BE NEEDED THIS AFTERNOON.

GENERAL STORM MOTION OF THE DAY:

SOUTHEAST AT 20 MPH.

&&

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