Heavy Freezing Spray Warning Issued for Upper Michigan Coastal Waters
This alert is no longer in effect.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 Heavy Freezing Spray Warning for Lake Superior coastal waters, with ice accumulation rates of 2 cm per hour expected.
Read this weather record in 30 seconds
- Record type
- Heavy Freezing Spray Warning
- Affected area
- Upper Michigan Coastal Waters
- Issued
- April 6, 2026
- Issuing authority
- NWS Marquette
The warning type, named area, and issue time define this record. Confirm all three against the original agency notice before treating it as current.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Upper Michigan Coastal Waters.
Alert Details
A Heavy Freezing Spray Warning has been issued by the National Weather Service in Marquette, MI. This warning is in effect alongside a Small Craft Advisory for the region's coastal waters.
Affected Areas
The warning covers the following geographic regions in Michigan:
- Upper Entrance of Portage Canal to Eagle River MI
- Eagle River to Manitou Island MI
What You Should Do
Mariners are advised to prepare for dangerous accumulations of ice on their vessels. If possible, remain in port or avoid the warning area entirely. If navigation is necessary, conduct mitigation efforts to manage ice. Inexperienced mariners, particularly those operating smaller vessels, should avoid navigating in these hazardous conditions.
Expected Conditions
- Freezing Spray: Heavy freezing spray is expected at a rate of 2 cm per hour or greater.
- Wind: Northwest winds between 15 to 25 knots, with gusts reaching up to 30 knots.
- Waves: Significant wave heights of 6 to 9 feet are occurring.
- Hazards: Rapid ice accretion on decks and superstructures may lead to a catastrophic loss of vessel stability. Freezing spray can also render mechanical and electronic components inoperative.
Timeline
- Heavy Freezing Spray Warning: Effective from 1:00 AM EST to 4:00 PM EST Wednesday, February 25.
- Small Craft Advisory: Remains in effect until 1:00 AM EST Thursday, February 26.
Original source: NOAA Official Notice ↗
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