066
WHUS53 KGRR 062307
SMWGRR
LMZ844-845-876-878-062345-
/O.NEW.KGRR.MA.W.0037.251006T2307Z-251006T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
707 PM EDT MON OCT 6 2025
THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
* SPECIAL MARINE WARNING FOR...
NEARSHORE AND OPEN WATERS FROM ST JOSEPH TO HOLLAND MI...
* UNTIL 745 PM EDT.
* AT 707 PM EDT, STRONG THUNDERSTORMS PRODUCING WATERSPOUTS WERE
LOCATED ALONG A LINE EXTENDING FROM 11 NM WEST OF SAUGATUCK PIER
HEADS TO 8 NM WEST OF SOUTH HAVEN LIGHT, MOVING EAST AT 25 KNOTS.
HAZARD...WATERSPOUTS, WIND GUSTS 34 KNOTS OR GREATER, AND SMALL
HAIL.
SOURCE...RADAR.
IMPACT...WATERSPOUTS CAN EASILY OVERTURN BOATS AND CREATE LOCALLY
HAZARDOUS SEAS. SMALL CRAFT COULD BE DAMAGED IN BRIEFLY
HIGHER WINDS AND SUDDENLY HIGHER WAVES.
* LOCATIONS IMPACTED INCLUDE...
SOUTH HAVEN LIGHT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THUNDERSTORMS CAN PRODUCE SUDDEN WATERSPOUTS RESULTING IN LOCALLY
HAZARDOUS SEAS. SEEK SAFE HARBOR IMMEDIATELY.
FREQUENT LIGHTNING IS OCCURRING WITH THESE STORMS. IF CAUGHT ON THE
OPEN WATER STAY BELOW DECK IF POSSIBLE, KEEP AWAY FROM UNGROUNDED
METAL OBJECTS.
LAT...LON 4258 8623 4242 8627 4225 8636 4229 8650
4240 8659 4268 8652 4277 8642 4277 8621
TIME...MOT...LOC 2307Z 254DEG 26KT 4264 8648 4239 8648
WATERSPOUT...OBSERVED
HAIL...<.75IN
WIND...>34KTS
JC
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