FLUS43 KLOT 111616
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1116 AM CDT MON AUG 11 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-
1116 AM CDT MON AUG 11 2014 /1216 PM EDT MON AUG 11 2014/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...THIS AFTERNOON AND TONIGHT.
WEATHER HAZARDS EXPECTED:
CHANCE OF THUNDERSTORMS...WHICH MAY PRODUCE:
OCCASIONAL CLOUD TO GROUND LIGHTNING.
HEAVY DOWNPOURS.
AREAS AFFECTED AND TIMING:
ISOLATED TO SCATTERED THUNDERSTORMS LATE THIS AFTERNOON
THROUGH THIS EVENING FOR THE ENTIRE OUTLOOK AREA.
DISCUSSION:
A HUMID AND WEAKLY UNSTABLE AIR MASS HAS SPREAD ACROSS THE
OUTLOOK AREA SINCE SUNDAY. THE AIR MASS WILL DESTABILIZE
FURTHER THIS AFTERNOON...AS AN UPPER LEVEL DISTURBANCE DROPS
SOUTHEAST FROM MINNESOTA. ISOLATED TO SCATTERED THUNDERSTORMS
ARE EXPECTED TO DEVELOP IN CONJUNCTION WITH THIS DISTURBANCE
ALONG A DEVELOPING COLD FRONT WHICH WILL PUSH SOUTHEAST ACROSS
THE AREA LATE THIS AFTERNOON AND THIS EVENING. SLOW CELL
MOVEMENT OF THESE STORMS LATER TODAY COULD PRODUCE BRIEF HEAVY
DOWNPOURS IN SOME AREAS...WHICH COULD LEAD TO PONDING OR SOME
LOCALIZED FLOODING IN FLOOD PRONE AREAS...ESPECIALLY IF
THUNDERSTORMS CONTINUE TO REDEVELOP OVER THE SAME AREAS.
ANOTHER UPPER LEVEL SYSTEM WILL APPROACH THE REGION LATER
TONIGHT...WITH CONTINUED SCATTERED THUNDERSTORMS THROUGH
THE OVERNIGHT HOURS.
DANGEROUS SWIMMING CONDITIONS ARE LIKELY TODAY AND TONIGHT FOR
THE SHORES ALONG COOK COUNTY IN ILLINOIS...AS WELL AS LAKE AND PORTER
COUNTIES IN INDIANA.
.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.
DANGEROUS SWIMMING CONDITIONS ARE LIKELY AT SOME LAKE MICHIGAN
BEACHES TUESDAY INTO EARLY WEDNESDAY AFTERNOON.
THERE WILL BE ANOTHER CHANCE OF THUNDERSTORMS LATER FRIDAY INTO
SUNDAY.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT.
&&
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