411
WWUS20 KWNS 182007
SEL6
SPC WW 182007
MIZ000-OHZ000-LEZ000-LHZ000-LMZ000-190200-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 436
NWS STORM PREDICTION CENTER NORMAN OK
410 PM EDT WED JUN 18 2025
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHERN LOWER MICHIGAN
NORTHWEST OHIO
LAKE ERIE
LAKE HURON
LAKE MICHIGAN
* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 410 PM
UNTIL 1000 PM EDT.
* PRIMARY THREATS INCLUDE...
SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY
ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE
A TORNADO OR TWO POSSIBLE
SUMMARY...A FAST-MOVING BOW ECHO OVER NORTHERN INDIANA WILL RACE
NORTHEASTWARD ACROSS THE WATCH AREA THROUGH THE LATE AFTERNOON,
POSING A RISK OF DAMAGING WIND GUSTS AND SOME HAIL. A TORNADO OR
TWO IS POSSIBLE.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH NORTHWEST
OF LANSING MI TO 15 MILES SOUTH SOUTHEAST OF FINDLAY OH. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU6).
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.
OTHER WATCH INFORMATION...CONTINUE...WW 432...WW 433...WW
434...WW 435...
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO
1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A
FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR
24035.
...HART
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