Friday, May 15, 2015

Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 152018
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
318 PM CDT FRI MAY 15 2015


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-
318 PM CDT FRI MAY 15 2015

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

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED:

ISOLATED THUNDERSTORMS CAPABLE OF PRODUCING...
VERY HEAVY DOWNPOURS.
AND CLOUD TO GROUND LIGHTNING.

AREAS AFFECTED AND TIMING:

THUNDERSTORMS ARE POSSIBLE OVER THE AREA TONIGHT...WITH THE
BEST CHANCES LATER THIS EVENING AND OVERNIGHT.

DISCUSSION:

AN UNSEASONABLY WARM AND HUMID AIR MASS OVER THE AREA...
COMBINED WITH AN APPROACHING MID LEVEL DISTURBANCE WILL ALLOW
FOR THE POSSIBILITY OF SOME SCATTERED SHOWERS AND
THUNDERSTORMS OVER THE AREA TONIGHT. NO SEVERE WEATHER IS
ANTICIPATED. THE PRIMARY HAZARD FROM ANY STORMS WILL BE HEAVY
RAIN AND CLOUD TO GROUND LIGHTNING.

AREAS OF DENSE FOG COULD DEVELOP TONIGHT...ESPECIALLY NEAR THE
LAKE.

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

SCATTERED THUNDERSTORMS ARE EXPECTED SATURDAY AFTERNOON. ONCE
AGAIN THE PRIMARY THREAT APPEARS TO BE VERY HEAVY DOWNPOURS AND
CLOUD TO GROUND LIGHTNING...THOUGH AN ISOLATED STRONGER STORM WITH
STRONG GUSTY WINDS IS POSSIBLE.

THERE IS A CHANCE OF THUNDERSTORMS SUNDAY. CONDITIONS APPEAR
FAVORABLE FOR SEVERE THUNDERSTORMS SUNDAY AFTERNOON AND EVENING.

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS MONDAY...MAINLY EAST OF
THE I-57 CORRIDOR.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

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