


Special Marine Warning
Issued by NWS Grand Rapids, MI
Issued by NWS Grand Rapids, MI
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389 WHUS53 KGRR 120324 SMWGRR LMZ848-870-120415- /O.NEW.KGRR.MA.W.0026.250712T0324Z-250712T0415Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Grand Rapids MI 1124 PM EDT Fri Jul 11 2025 The National Weather Service in Grand Rapids has issued a * Special Marine Warning for... Nearshore and Open Waters from Whitehall to Pentwater MI... * Until 1215 AM EDT. * At 1123 PM EDT, a strong thunderstorm was located near White Lake Pier Heads, moving northeast at 20 knots. HAZARD...Wind gusts to 40 knots. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * The strong thunderstorm will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Frequent lightning is occurring with this storm. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 4340 8667 4355 8651 4351 8647 4341 8644 TIME...MOT...LOC 0323Z 227DEG 21KT 4340 8652 HAIL...0.00IN WIND...40KTS $$ DUKE