487
WHUS53 KDTX 232240
SMWDTX
LHZ442-443-463-464-240000-
/O.NEW.KDTX.MA.W.0069.250823T2240Z-250824T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
640 PM EDT SAT AUG 23 2025
THE NATIONAL WEATHER SERVICE IN DETROIT/PONTIAC HAS ISSUED A
* SPECIAL MARINE WARNING FOR...
HARBOR BEACH TO PORT SANILAC MI...
LAKE HURON FROM HARBOR BEACH TO PORT SANILAC 5NM OFF SHORE TO
US/CANADIAN BORDER...
LAKE HURON FROM PORT SANILAC TO PORT HURON 5NM OFF SHORE TO
US/CANADIAN BORDER...
PORT SANILAC TO PORT HURON MI...
* UNTIL 800 PM EDT.
* AT 639 PM EDT, STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 11 NM SOUTH OF HARBOR BEACH TO 17 NM NORTHWEST OF
PORT SANILAC TO 23 NM SOUTHEAST OF SEBEWAING, MOVING EAST AT 25
KNOTS.
HAZARD...WIND GUSTS TO 40 KNOTS AND SMALL HAIL.
SOURCE...RADAR.
IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND
SUDDENLY HIGHER WAVES.
* STRONG THUNDERSTORMS WILL BE NEAR...
WHITE ROCK AROUND 645 PM EDT.
RICHMONDVILLE AROUND 650 PM EDT.
PORT SANILAC AROUND 715 PM EDT.
OTHER LOCATIONS IMPACTED BY STRONG THUNDERSTORMS INCLUDE WHITE ROCK
AND RICHMONDVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES.
LAT...LON 4333 8225 4327 8235 4331 8258 4377 8265
4384 8270 4385 8269 4384 8218 4359 8212
TIME...MOT...LOC 2239Z 286DEG 21KT 4367 8274 4357 8290 4346 8306
HAIL...<.75IN
WIND...40KTS
SC
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