FLUS43 KLOT 122132
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
432 PM CDT SUN JUL 12 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-
432 PM CDT SUN JUL 12 2015
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TONIGHT.
WEATHER HAZARDS EXPECTED:
THUNDERSTORMS...SOME OF WHICH MAY PRODUCE:
OCCASIONAL CLOUD TO GROUND LIGHTNING.
LOCALLY HEAVY RAINFALL AND FLASH FLOODING.
WIND GUSTS TO 60 MPH.
AREAS AFFECTED AND TIMING:
NORTHERN ILLINOIS AFTER MIDNIGHT TONIGHT...AND NORTHWEST INDIANA
DURING THE PREDAWN HOURS OF MONDAY MORNING.
DISCUSSION:
A VERY MOIST AND UNSTABLE AIR MASS HAS SPREAD ACROSS THE UPPER
MIDWEST...WITH THUNDERSTORMS DEVELOPING OVER MINNESOTA AND THE
EASTERN DAKOTAS LATE THIS AFTERNOON AND EVENING EXPECTED TO
MOVE SOUTHEAST INTO THE OUTLOOK AREA LATE TONIGHT. STORMS WILL
LIKELY PRODUCE SEVERE WEATHER ACROSS THE UPPER MISSISSIPPI
VALLEY...AND ALTHOUGH THEY WILL LIKELY BE WEAKENING AS THEY
APPROACH THE OUTLOOK AREA...THEY MAY STILL BE CAPABLE OF
PRODUCING DAMAGING WINDS AND LOCALLY HEAVY RAINFALL ESPECIALLY
OVER FAR NORTHWEST AND NORTH CENTRAL ILLINOIS AFTER 3 AM CDT.
PORTIONS OF THE ILLINOIS...IROQUOIS...VERMILLION AND KANKAKEE
RIVERS...AND SUGAR CREEK ARE IN FLOOD.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS OVER MOST OF
THE OUTLOOK AREA MONDAY AND MONDAY EVENING.
A CLUSTER OF THUNDERSTORMS WILL LIKELY AFFECT THE AREA EARLY
MONDAY MORNING...WITH REDEVELOPMENT OF SEVERE THUNDERSTORMS
EXPECTED DURING THE AFTERNOON HOURS. DAMAGING WINDS...LARGE
HAIL AND POTENTIALLY A FEW TORNADOES ARE POSSIBLE...MAINLY
DURING THE AFTERNOON AND EVENING HOURS. TORRENTIAL RAINFALL
IS ALSO POSSIBLE...AND MAY LEAD TO FLASH FLOODING.
THERE IS ALSO A CHANCE OF THUNDERSTORMS TUESDAY...AND PERIODIC
CHANCES OF THUNDERSTORMS AGAIN THURSDAY THROUGH SUNDAY.
PORTIONS OF THE ILLINOIS...IROQUOIS...VERMILLION AND KANKAKEE
RIVERS...AND SUGAR CREEK WILL REMAIN IN FLOOD.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT...THOUGH REPORTS
OF SEVERE WEATHER OR HEAVY RAINFALL WOULD BE MOST WELCOME.
&&
http://goo.gl/NeDK0T
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