Friday, May 15, 2015

Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 150909
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
409 AM 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-
409 AM CDT FRI MAY 15 2015

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

.DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED:

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

AREAS AFFECTED AND TIMING:

ISOLATED THUNDERSTORMS ARE POSSIBLE SOUTH OF INTERSTATE 80
LATER THIS AFTERNOON WITH THE THREAT OVERSPREADING THE
REMAINDER OF THE AREA TONIGHT.

DISCUSSION:

AN UNSEASONABLY WARM AND HUMID AIR MASS WILL GRADUALLY SPREAD
NORTH INTO THE AREA TODAY INTO TONIGHT WITH WIDELY SCATTERED
SHOWERS AND THUNDERSTORMS LIKELY TO DEVELOP IN THE WARM AND
MOIST AIR. AN ISOLATED STRONG STORM OR TWO WITH GUSTY WINDS AND
SMALL HAIL CANNOT BE TOTALLY RULED OUT...HOWEVER 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 LIKELY 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 ARE SUNDAY. IF STORMS DO INDEED
OCCUR...IT IS POSSIBLE THAT CONDITIONS COULD BECOME MORE FAVORABLE
FOR SEVERE WEATHER SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

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