Storm Warning Issued for Lake Superior: Grand Marais to Whitefish Point
This alert is no longer in effect.
NOAA issued it on March 31, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
The National Weather Service has issued a Storm Warning for Lake Superior waters, with wind gusts up to 60 knots and waves reaching 21 feet expected through early Tuesday.
Read this weather record in 30 seconds
- Record type
- Storm Warning
- Affected area
- Lake Superior (Grand Marais to Whitefish Point MI)
- Issued
- March 31, 2026
- Issuing authority
- NWS Marquette
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Lake Superior (Grand Marais to Whitefish Point MI).
Alert Details
The National Weather Service in Marquette, MI, has issued a Storm Warning for portions of Lake Superior. This alert follows a Gale Warning and indicates a significant escalation in hazardous maritime conditions.
Affected Areas
The warning covers the following regions:
- Grand Marais to Whitefish Point, MI
- Lake Superior from Grand Marais to Whitefish Point, extending 5 nautical miles offshore to the US/Canadian border.
What You Should Do
Mariners are advised to take immediate precautions. The NWS recommends that mariners remain in port, alter course to avoid the storm, or secure vessels for severe conditions. Storm-force winds and hazardous waves are capable of capsizing or damaging vessels and significantly reducing visibility.
Expected Conditions
Conditions are expected to deteriorate in two phases:
- Gale Warning Phase: East winds of 30 to 40 knots with gusts up to 50 knots. Wave heights are expected between 7 and 12 feet.
- Storm Warning Phase: North winds of 35 to 45 knots with gusts increasing up to 60 knots. Wave heights are expected to reach 16 to 21 feet.
Timeline
- Gale Warning: Effective from 11:00 AM to 8:00 PM EDT on Sunday, March 15.
- Storm Warning: Effective from 8:00 PM EDT Sunday, March 15, until 2:00 AM EDT on Tuesday, March 17.
Original source: NOAA Official Notice ↗
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