


Special Marine Warning
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
122 WHUS53 KDLH 151912 SMWDLH LSZ121-147-148-150-162-152015- /O.NEW.KDLH.MA.W.0023.250715T1912Z-250715T2015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Duluth MN 212 PM CDT Tue Jul 15 2025 The National Weather Service in Duluth MN has issued a * Special Marine Warning for... Chequamegon Bay-Bayfield to Oak Point WI... Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM... Oak Point to Saxon Harbor WI... Outer Apostle Islands Beyond 5 NM from Mainland... Sand Island to Bayfield WI... * Until 315 PM CDT. * At 212 PM CDT, a strong thunderstorm was located 19 nm south of Port Wing Harbor, or 33 nm southeast of Duluth Lift Bridge Channel, moving east at 30 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Ashland Breakwater Lighthouse, Chequamegon Bay, Basswood Island, Marble Point, Oak Point, Madeline Island, La Pointe, Red Cliff, Hermit Island, Saxon Harbor, and Apostle Islands National Lake Shore. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4656 9054 4657 9058 4664 9071 4656 9092 4657 9097 4667 9094 4670 9089 4676 9092 4683 9085 4689 9070 4656 9045 TIME...MOT...LOC 1912Z 250DEG 30KT 4648 9140 HAIL...<.75IN WIND...>34KTS $$ Britt