Lakeshore Flood Warning Issued for Ontonagon County with Waves Up to 25 Feet Expected
This alert is no longer in effect.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).
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The National Weather Service has issued a Lakeshore Flood Warning for Ontonagon County, effective from Sunday night through Monday afternoon, as massive waves threaten the shoreline.
Read this weather record in 30 seconds
- Record type
- Lakeshore Flood Warning
- Affected area
- Ontonagon County, Michigan
- Issued
- April 6, 2026
- Issuing authority
- NWS Marquette MI
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Ontonagon County, Michigan.
Alert Details
A Lakeshore Flood Warning has been issued by the National Weather Service in Marquette, MI. The warning is in effect from late Sunday night through Monday afternoon as significant flooding is expected along the shoreline.
Affected Areas
This alert specifically impacts Ontonagon County in Michigan.
What You Should Do
Residents and travelers in the affected area are advised to take the following precautions:
- Take necessary actions to protect flood-prone property immediately.
- If travel is required, allow extra time as some roads may be closed due to flooding.
- Do not drive around barricades or through water of unknown depth.
- Avoid areas near the lake where wave action is most intense.
Expected Conditions
Significant lakeshore flooding is anticipated, driven by wave heights of 15 to 25 feet. These conditions are expected to cause numerous road closures. Low-lying property, including parking lots, lawns, homes, and businesses near the lake, will likely be inundated. Additionally, some shoreline erosion is expected to occur due to the severity of the wave action.
Timeline
The Lakeshore Flood Warning begins at 11:00 PM EDT on Sunday, March 15, 2026. The hazardous conditions are expected to persist until the warning expires at 5:00 PM EDT on Monday, March 16, 2026.
Original source: NOAA Official Notice ↗
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