


Special Marine Warning
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
584 WHUS53 KDLH 292117 SMWDLH LSZ145-146-162-292215- /O.NEW.KDLH.MA.W.0018.250629T2117Z-250629T2215Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Duluth MN 417 PM CDT Sun Jun 29 2025 The National Weather Service in Duluth MN has issued a * Special Marine Warning for... Duluth MN to Port Wing WI... Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM... Port Wing to Sand Island WI... * Until 515 PM CDT. * At 417 PM CDT, a strong thunderstorm was located near Superior Harbor, or 10 nm southeast of Duluth Lift Bridge Channel, moving east at 20 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Superior Harbor, Port Wing Harbor, Superior Entry, and Brule Point. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4666 9203 4675 9202 4689 9141 4679 9133 4673 9151 4666 9193 TIME...MOT...LOC 2117Z 263DEG 21KT 4667 9188 HAIL...0.00IN WIND...>34KTS $$ Wolfe