Severe Severe Storm ● Closed
Special Marine Warning — Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore
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 August 7 at 9:01PM EDT until August 7 at 9:30PM EDT by NWS Marquette MI
Measurements
| Coordinates | 47.2200, -86.2214 |
|---|---|
| Region | Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore |
| Expires | 2026-08-07T21:30:00-04:00 |
| Nws Urgency | Immediate |
| Nws Certainty | Likely |
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 72 days ago (Aug 8, 2026 01:28 UTC) · we last heard from US National Weather Service 19 seconds ago
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