Tuesday, April 29, 2014

Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 290830
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
330 AM CDT TUE APR 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-
330 AM CDT TUE APR 29 2014 /430 AM EDT TUE APR 29 2014/

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

.DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED:

ISOLATED TO WIDELY SCATTERED THUNDERSTORMS...PRIMARY HAZARDS:
HEAVY RAIN.
CLOUD TO GROUND LIGHTNING.
POSSIBLY HAIL UP TO PENNY SIZE.
AND A REMOTE CHANCE OF A BRIEF TORNADO.

AREAS AFFECTED AND TIMING:

THE BEST CHANCE FOR THUNDERSTORMS IS BETWEEN NOON AND 6 PM AND
THE HIGHEST POTENTIAL FOR SEEING THUNDERSTORMS IS NORTH AND EAST
OF A DIXON ILLINOIS TO RENSSELAER INDIANA LINE.

DISCUSSION:

A WARM FRONT WILL MOVE NORTH ACROSS THE REGION THIS MORNING INTO
THE AFTERNOON. ISOLATED TO WIDELY SCATTERED THUNDERSTORMS COULD
DEVELOP AS THIS FRONT LIFTS NORTHWARD THIS AFTERNOON. GENERALLY
SPEAKING...THE THREAT OF SEVERE WEATHER APPEARS LOW WITH HEAVY
RAIN AND SMALL HAIL THE PRIMARY THREATS WITH THE STRONGEST
STORMS. HOWEVER...A GREAT DEAL OF SPIN EXISTS ALOFT DUE TO A
STRONG UPPER LOW MOVING INTO THE REGION...SO THERE IS A REMOTE
POSSIBILITY THAT THIS SPIN COULD BE SUFFICIENT FOR A BRIEF
TORNADO TO FORM WITH ONE OF THE STRONGER STORMS.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT...BUT SPOTTERS
ARE ENCOURAGED TO STAY ABREAST OF THE WEATHER TODAY AS
THUNDERSTORMS DEVELOP.

&&

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