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Special Marine Warning — Silver Bay Harbor to Two Harbors MN; Two Harbors to Duluth MN; Duluth MN to Port Wing WI; Port Wing to Sand Island WI; Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM
severe
Severity as published by US National Weather Service.
- Source
- US National Weather Service — official source
- Time
- 25 August 2026, 22:21 UTC (Aug 25, 2026)
- Area
- Silver Bay Harbor to Two Harbors MN; Two Harbors to Duluth MN; Duluth MN to Port Wing WI; Port Wing to Sand Island WI; Lake Superior west of a line from Sa,
United States
46.860, -91.768
What this is
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
What to do
Follow the instructions issued by US National Weather Service and your local emergency services. The guidance below is background.
Who to contact
National Weather Service · FEMA · USGS Earthquake Hazards
This site is not an emergency service and does not issue warnings.
Location
No map is loaded here. A map means downloading image tiles from another service, which is the slowest thing on the full page and the first thing to fail on a weak connection. The coordinates are above if you need them.