Friday, August 29, 2014

Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 292021
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
321 PM CDT FRI AUG 29 2014


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-
321 PM CDT FRI AUG 29 2014 /421 PM EDT FRI AUG 29 2014/

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

WEATHER HAZARDS EXPECTED:

THUNDERSTORMS...SOME OF WHICH MAY PRODUCE:
-ISOLATED WIND GUSTS TO 50 MPH.
-TORRENTIAL DOWNPOURS.
-CLOUD TO GROUND LIGHTNING.

AREAS AFFECTED AND TIMING:

SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS PORTIONS OF
NORTHERN ILLINOIS AND NORTHWESTERN INDIANA THIS AFTERNOON
AND EVENING. STORMS WILL INCREASE IN COVERAGE TONIGHT
ESPECIALLY ALONG AND NORTH OF INTERSTATE 80.

DISCUSSION:

A WARM FRONT WILL LIFT OVER THE AREA THIS AFTERNOON. SCATTERED
THUNDERSTORMS ARE EXPECTED FOR FORM IN THE WARM AND HUMID
AIRMASS. MORE WIDELY SPREAD THUNDERSTORMS ARE EXPECTED AFTER
MIDNIGHT MAINLY ALONG AND NORTH OF INTERSTATE 80 AS AN UPPER
LEVEL DISTURBANCE APPROACHES THE REGION. ALTHOUGH WIDESPREAD
SEVERE WEATHER IS NOT EXPECTED...A FEW STRONG STORMS COULD
PRODUCE WIND GUSTS UP TO AROUND 50 MPH. ADDITIONALLY...THE
STORMS WILL ALSO PRODUCE TORRENTIAL DOWNPOURS.

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

THERE WILL BE PERIODIC CHANCES FOR THUNDERSTORMS SATURDAY
AND SATURDAY EVENING...THEN LATE SUNDAY NIGHT THROUGH THURSDAY.
ANY STRONGER THUNDERSTORMS WILL BE CAPABLE OF PRODUCING HEAVY
RAINFALL AND LOCALIZED FLASH FLOODING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

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