FLUS43 KLOT 300452
HWOLOT
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1152 PM CDT SUN JUN 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-
1152 PM CDT SUN JUN 29 2014 /1252 AM EDT MON JUN 30 2014/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...OVERNIGHT.
WEATHER HAZARDS EXPECTED:
THUNDERSTORMS...SOME OF WHICH MAY PRODUCE:
HEAVY DOWNPOURS.
FREQUENT CLOUD TO GROUND LIGHTNING.
WIND GUSTS OF 70 TO 80 MPH.
QUARTER SIZE HAIL
POSSIBLY A TORNADO.
AREAS AFFECTED AND TIMING:
THUNDERSTORMS WILL CONTINUE TO MOVE EASTWARD FROM NORTHWEST
ILLINOIS AND EASTERN IOWA THROUGH OVERNIGHT. WHILE A SLOW
WEAKENING TREND CONTINUES TO BE EXPECTED...SOME STORMS HAVE
SHOWN POTENTIAL TO HAVE STRONG WINDS AND EVEN ROTATION CAPABLE
OF TORNADOES. STORMS SHOULD GRADUALLY MOVE INTO NORTHEAST
ILLINOIS AND POSSIBLY NORTHWEST INDIANA LATE AND INTO THE
PREDAWN HOURS.
DISCUSSION:
THE AIR MASS ACROSS THE REGION CONTINUES TO BE MOIST WITH A
GREAT DEAL OF INSTABILITY...ENOUGH TO AT LEAST PROVIDE THE
POTENTIAL FOR SURFACE BASED STORMS IN NORTH CENTRAL ILLINOIS.
THUS STRONG WINDS AND POSSIBLY A TORNADO OR TWO REMAIN THREATS
WITH THIS BROKEN LINE OF STORMS AS IT MOVES INTO AND THROUGH
NORTH CENTRAL ILLINOIS.
PORTIONS OF THE IROQUOIS AND KANKAKEE RIVERS WILL REMAIN IN
FLOOD.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
THUNDERSTORMS ARE LIKELY LATER MONDAY AFTERNOON AND NIGHT...WITH
THE INCREASING LIKELIHOOD FOR SEVERE STORMS IN THE REGION. STRONG
DAMAGING WINDS...TORNADOES...LARGE HAIL...AND LOCALLY HEAVY
RAINFALL WILL ALL BE POSSIBLE WITH THESE STORMS.
WATER LEVELS WILL REMAIN HIGH ALONG PORTIONS OF THE KANKAKEE
RIVER THROUGH AT LEAST THE MIDDLE OF THE WEEK.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS REQUESTED ACROSS NORTH CENTRAL ILLINOIS
THROUGH EARLY OVERNIGHT. ACTIVATION WILL LIKELY BE NEEDED ACROSS
MUCH OF THE AREA LATE MONDAY AFTERNOON INTO THE EVENING.
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