FLUS43 KLOT 212115
HWOLOT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
415 PM CDT TUE JUN 21 2016
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-
415 PM CDT TUE JUN 21 2016 /515 PM EDT TUE JUN 21 2016/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS...
NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...TONIGHT.
WEATHER HAZARDS EXPECTED:
SIGNIFICANT THUNDERSTORM RISK...WITH AN ASSOCIATED:
ELEVATED HAIL RISK...UP TO QUARTER SIZE.
LIMITED FLOODING RISK.
DISCUSSION:
THUNDERSTORMS WILL INCREASE IN COVERAGE ACROSS WESTERN ILLINOIS
OVERNIGHT AND SHIFT INTO NORTH CENTRAL ILLINOIS LATE TONIGHT.
HEAVY RAIN AND HAIL ARE THE MAIN THREATS...THOUGH THE RISK IS ONLY
MARGINAL DURING THIS PERIOD OF TIME AND CONFINED MOSTLY ALONG AND
WEST OF THE INTERSTATE 39 CORRIDOR.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.
WEDNESDAY...
ELEVATED FLOODING RISK.
SIGNIFICANT SEVERE THUNDERSTORM RISK.
LIMITED EXCESSIVE HEAT RISK.
THURSDAY...
HIGH RISK OF RIP CURRENTS
SATURDAY AND SUNDAY...
LIMITED THUNDERSTORM RISK.
LIMITED EXCESSIVE HEAT RISK.
DISCUSSION:
CLUSTERS OF THUNDERSTORMS WITH HEAVY RAIN AND SOME SEVERE HAIL
IN THE MORNING WILL GIVE WAY TO A MORE SIGNIFICANT SEVERE
THUNDERSTORM RISK WEDNESDAY MID AFTERNOON THROUGH THE EVENING.
ALL HAZARDS ARE POSSIBLE DURING THIS TIME PERIOD...INCLUDING VERY
LARGE HAIL...DAMAGING WINDS...LOCALIZED FLASH FLOODING...AND
TORNADOES. THIS RISK IS FOR THE ENTIRE AREA.
.SPOTTER INFORMATION STATEMENT...
SPOTTERS MAY BE NEEDED LATE TONIGHT IN NORTH CENTRAL ILLINOIS...BUT
MORE LIKELY NEEDED IN MUCH OF THE AREA ON WEDNESDAY.
GENERAL STORM MOTION OF THE DAY:
MOVING EAST SOUTHEAST AT 35 TO 40 MPH.
&&
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