


Special Marine Warning
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
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720 WHUS53 KDLH 221851 SMWDLH LSZ121-147-148-150-162-221945- /O.NEW.KDLH.MA.W.0032.250822T1851Z-250822T1945Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Duluth MN 151 PM CDT Fri Aug 22 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 245 PM CDT. * At 151 PM CDT, strong thunderstorms were located along a line extending from 9 nm south of Siskwit Bay to 9 nm west of Ashland Breakwater Lighthouse to 15 nm southwest of Chequamegon Bay, 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, Marble Point, Oak Point, Saxon Harbor, La Pointe, and Madeline Island. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4657 9058 4664 9071 4656 9092 4657 9097 4667 9094 4670 9089 4676 9092 4680 9088 4677 9040 4671 9040 4665 9044 4657 9043 4656 9041 TIME...MOT...LOC 1851Z 278DEG 29KT 4671 9112 4663 9110 4654 9116 HAIL...<.75IN WIND...>34KTS $$ Rothstein