987
WHUS53 KGRR 181630
SMWGRR
LMZ844>846-874-876-878-181830-
/O.NEW.KGRR.MA.W.0027.260518T1630Z-260518T1830Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1230 PM EDT MON MAY 18 2026
THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
* SPECIAL MARINE WARNING FOR...
NEARSHORE AND OPEN WATERS FROM ST JOSEPH TO GRAND HAVEN MI...
* UNTIL 230 PM EDT.
* AT 1230 PM EDT, SEVERE THUNDERSTORMS WERE LOCATED OVER LAKE
MICHIGAN ALONG A LINE EXTENDING FROM NEAR EVANSTON ILLINOIS TO
NEAR OGDEN DUNES INDIANA, MOVING NORTHEAST AT 45 KNOTS.
HAZARD...WIND GUSTS IN EXCESS OF 50 KNOTS.
SOURCE...RADAR.
IMPACT...BOATS COULD SUFFER SIGNIFICANT STRUCTURAL DAMAGE IN HIGH
WINDS. SMALL CRAFT COULD CAPSIZE IN SUDDENLY HIGHER
WAVES.
* LOCATIONS IMPACTED INCLUDE...
ST. JOSEPH LIGHT, SOUTH HAVEN LIGHT, SAUGATUCK PIER HEADS, HOLLAND
LIGHT, PORT SHELDON HARBOR, AND GRAND HAVEN LIGHT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO SAFE HARBOR IMMEDIATELY AS GUSTY WINDS AND HIGH WAVES ARE
EXPECTED.
LAT...LON 4213 8656 4212 8696 4279 8706 4306 8670
4306 8625 4294 8622 4269 8621 4245 8626
4225 8635 4211 8649
TIME...MOT...LOC 1629Z 225DEG 43KT 4212 8753 4173 8716
HAIL...0.00IN
WIND...50KTS
CAS
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