Severe Severe Storm ● Closed

Special Marine Warning — Grand Marais to Taconite Harbor MN; Taconite Harbor to Silver Bay Harbor MN; Silver Bay Harbor to Two Harbors MN; Port Wing to Sand Island WI; Sand Island to Bayfield WI; Outer Apostle Islands Beyond 5 NM from Mainland; Lake

Event time: Last updated: Sep 6, 2026 United States
Icon = what happened · ring colour = how serious: Extreme Severe Moderate Minor

Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.

Special Marine Warning issued July 26 at 8:24PM CDT until July 26 at 10:00PM CDT by NWS Duluth MN

Measurements

Coordinates47.0520, -90.8310
RegionGrand Marais to Taconite Harbor MN; Taconite Harbor to Silver Bay Harbor MN; Silver Bay Harbor to Two Harbors MN; Port Wing to Sand Island WI; Sand Island
Expires2026-07-26T22:00:00-05:00
Nws UrgencyImmediate
Nws CertaintyLikely

Official source

Weather alert data courtesy of NOAA / National Weather Service

This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.

Severity as published by US National Weather Service.

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Source updated 84 days ago (Jul 27, 2026 02:14 UTC) · we last heard from US National Weather Service 15 seconds ago

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