Flash Flood Warning Issued for Alcona and Oscoda Counties in Michigan
This alert is no longer in effect.
NOAA issued it on April 12, 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.
A Flash Flood Warning is in effect for western Alcona County and east central Oscoda County in Michigan until 3:45 AM EDT on April 13, due to flooding from a dam release on the Au Sable River.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- Northern Michigan
- Issued
- April 12, 2026
- Issuing authority
- NWS Gaylord 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 Northern Michigan.
Alert Details
A Flash Flood Warning has been issued by the National Weather Service (NWS) Gaylord MI. This alert is effective from 3:59 PM EDT on April 12, 2026, until 3:45 AM EDT on April 13, 2026.
Affected Areas
The warning affects western Alcona County and east central Oscoda County in northern Michigan. Specifically, areas along the Au Sable River downstream from the Mio Dam are impacted, with the nearest downstream town being McKinley, located about 9.5 miles from the dam.
What You Should Do
If you are in low lying areas below the Mio Dam, move to higher ground immediately. Do not attempt to drive across flooded roadways.
Expected Conditions
Flash flooding is occurring due to a dam high flow release from the Mio Dam, causing flooding of areas along the Au Sable River immediately downstream.
Timeline
The alert is effective from 3:59 PM EDT on April 12, 2026, and will expire at 3:45 AM EDT on April 13, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (943 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to April 12, 2026.
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