Severe Severe Storm ● Closed

Special Marine Warning — Point Isabelle to Lower Entrance of Portage Canal MI; Portage Lake to Huron Island MI to Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays

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 August 7 at 6:32PM EDT until August 7 at 7:00PM EDT by NWS Marquette MI

Measurements

Coordinates46.8727, -88.3191
RegionPoint Isabelle to Lower Entrance of Portage Canal MI; Portage Lake to Huron Island MI to Lower Entrance of Portage Canal To Huron Islands MI Including Kewe
Expires2026-08-07T19:00:00-04:00
Nws UrgencyImmediate
Nws CertaintyLikely

Official source

Weather alert data courtesy of NOAA / National Weather Service

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Severity as published by US National Weather Service.

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Source updated 72 days ago (Aug 7, 2026 22:58 UTC) · we last heard from US National Weather Service 19 seconds ago

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