382
WWUS20 KWNS 311422
SEL8
SPC WW 311422
ILZ000-INZ000-MIZ000-OHZ000-LMZ000-312200-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 78
NWS STORM PREDICTION CENTER NORMAN OK
925 AM CDT TUE MAR 31 2026
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHEAST ILLINOIS
NORTHERN INDIANA
SOUTHWEST LOWER MICHIGAN
NORTHWEST OHIO
LAKE MICHIGAN
* EFFECTIVE THIS TUESDAY MORNING AND AFTERNOON FROM 925 AM UNTIL
500 PM CDT.
* PRIMARY THREATS INCLUDE...
SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE
SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
SUMMARY...CLUSTERS OF THUNDERSTORMS OVER NORTHERN ILLINOIS WILL
TRACK EASTWARD THROUGH THE DAY ACROSS THE WATCH AREA. THE STRONGEST
STORMS WILL POSE A RISK OF DAMAGING WIND GUSTS AND HAIL.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 75 MILES WEST SOUTHWEST
OF VALPARAISO IN TO 70 MILES EAST NORTHEAST OF FORT WAYNE IN. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU8).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO
2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A
FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR
27030.
...HART
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