589
WHUS53 KGRR 112336
SMWGRR
LMZ845>847-872-874-876-120130-
/O.NEW.KGRR.MA.W.0039.260611T2336Z-260612T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
736 PM EDT THU JUN 11 2026
THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
* SPECIAL MARINE WARNING FOR...
NEARSHORE AND OPEN WATERS FROM SOUTH HAVEN TO WHITEHALL MI...
* UNTIL 930 PM EDT.
* AT 734 PM EDT, SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
WATERSPOUTS AND STRONG WIND GUSTS IN EXCESS OF 50 KNOTS WERE
LOCATED ALONG A LINE EXTENDING FROM 15 NM EAST OF NORTH PT. LT. TO
13 NM EAST OF WINTHROP HARBOR, MOVING EAST AT 45 KNOTS.
HAZARD...WATERSPOUTS AND WIND GUSTS IN EXCESS OF 50 KNOTS.
SOURCE...RADAR.
IMPACT...WATERSPOUTS CAN EASILY OVERTURN BOATS AND CREATE LOCALLY
HAZARDOUS SEAS. BOATS COULD SUFFER SIGNIFICANT STRUCTURAL
DAMAGE IN HIGH WINDS. SMALL CRAFT COULD CAPSIZE IN
SUDDENLY HIGHER WAVES.
* LOCATIONS IMPACTED INCLUDE...
SAUGATUCK PIER HEADS, WHITE LAKE PIER HEADS, MONA LAKE CHANNEL, THE
WHITE LAKE PIERHEADS, PORT SHELDON HARBOR, GRAND HAVEN LIGHT,
MUSKEGON LIGHT, AND HOLLAND LIGHT.
LAT...LON 4241 8628 4244 8636 4246 8702 4338 8714
4341 8644 4312 8627 4296 8622 4269 8621
TIME...MOT...LOC 2334Z 250DEG 45KT 4304 8753 4250 8749
WATERSPOUT...POSSIBLE
HAIL...0.00IN
WIND...50KTS
HOVING
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