Storm Warning and Heavy Freezing Spray Warning Issued for Lake Superior Near Marquette
This alert is no longer in effect.
NOAA issued it on April 6, 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 and Heavy Freezing Spray Warning for Lake Superior waters near Marquette, with winds up to 50 knots and rapid ice accumulation expected.
Read this weather record in 30 seconds
- Record type
- Storm Warning
- Affected area
- Lake Superior / Upper Michigan
- Issued
- April 6, 2026
- Issuing authority
- NWS Marquette MI
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 / Upper Michigan.
Alert Details
The National Weather Service in Marquette, MI, has issued a Storm Warning and a Heavy Freezing Spray Warning for portions of Lake Superior. These alerts indicate imminent hazardous conditions for maritime operations due to high winds and significant ice accumulation.
Affected Areas
The warning covers the following geographic regions:
- Huron Islands to Marquette, MI
- Lake Superior West of a line from Manitou Island to Marquette, MI, beyond 5NM from shore
What You Should Do
Mariners are strongly advised to remain in port or seek safe harbor immediately. If at sea, alter course to avoid the warning area and secure the vessel for severe conditions. Residents and operators should prepare for dangerous accumulation of ice on vessels and conduct necessary mitigation to prevent catastrophic loss of stability.
Expected Conditions
- Wind: West winds between 30 to 40 knots are expected, with gusts reaching up to 50 knots.
- Waves: Wave heights are forecast to reach between 3 to 6 feet.
- Ice Accumulation: Heavy freezing spray is expected at a rate of 2 cm per hour or greater. This may cause rapid ice accretion on decks and superstructures, potentially rendering mechanical and electronic components inoperative.
- Visibility: Storm force winds and hazardous waves are expected to significantly reduce visibility and create conditions capable of capsizing or damaging vessels.
Timeline
- Storm Warning: Effective from 1:00 PM Friday until 10:00 AM EST Saturday.
- Heavy Freezing Spray Warning: Effective from 10:00 PM Friday until 4:00 PM EST Saturday.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Frequently Asked Questions
Common questions about this NWS weather alert.