Hazardous Weather Outlook for Mchenry Co., IL

FLUS43 KLOT 212033
HWOLOT

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
333 PM CDT MON APR 21 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-
333 PM CDT MON APR 21 2014 /433 PM EDT MON APR 21 2014/

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

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED:

SCATTERED THUNDERSTORMS...WHICH WILL PRODUCE...

OCCASIONAL CLOUD TO GROUND LIGHTNING.
BRIEF DOWNPOURS.

AREAS AFFECTED AND TIMING:

SCATTERED THUNDERSTORMS WILL BE POSSIBLE THROUGH THE REMAINDER OF
THE AFTERNOON HOURS AND INTO EARLY EVENING. STORMS WILL END FROM
WEST TO EAST THROUGH THE EVENING HOURS FOLLOWING THE PASSAGE OF A
COLD FRONT.

DISCUSSION:

A COLD FRONT WILL MOVE INTO NORTHWESTERN ILLINOIS BY LATE THIS
AFTERNOON AND SWEEP EASTWARD THROUGH THE REGION...AND PUSH INTO
NORTHWESTERN INDIANA BY LATE THIS EVENING. SCATTERED
THUNDERSTORMS WILL BE POSSIBLE IN THE INCREASINGLY UNSTABLE
ENVIRONMENT AHEAD OF THE FRONT...WITH MORE LINEAR COVERAGE ALONG
THE BOUNDARY. THE LACK OF STRONG WINDS ALOFT AND STRONG DEEP
LAYER WIND SHEAR WILL MAKE THE OCCURRENCE OF SEVERE WEATHER
UNLIKELY.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THERE WILL BE ANOTHER CHANCE OF THUNDERSTORMS THURSDAY INTO
THURSDAY EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.

&&

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