Flood Advisory — St. Clair County, Michigan
Minor flooding is expected — not severe enough for a warning, but potentially inconvenient or hazardous for travel.
Current Status
🌊 Active: Flood Advisory
Flood Advisory issued August 12 at 6:03PM EDT until August 12 at 9:00PM EDT by NWS Detroit/Pontiac MI
* WHAT...Small stream flooding caused by excessive rainfall is expected. * WHERE...Northern St. Clair County in southeastern Michigan... Southern Sanilac County in southeastern Michigan... * WHEN...Until 900 PM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 601 PM EDT, Doppler radar indicated heavy rain due to thunderstorms. This will cause road and small stream flooding. Radar estimates between 1 and 3 inches of rain have fallen. - Additional rainfall amounts of 1 to 2 inches are expected over the area. This additional rain will result in additional minor flooding. - Some locations that will experience flooding include... Croswell, Yale, Marlette, Brown City, Lexington, Lakeport, Peck, Melvin, Watertown, Blaine, Roseburg, Fargo, Amador, Valley Center, Jeddo, Lexington Heights, Juhl, Birch Beach and North Street. - http://www.weather.gov/safety/flood
Effective August 12, 2026 at 6:03 PM ET · Expires August 12, 2026 at 9:00 PM ET
Event Details
Event Type
Flood Advisory
Severity
minor
Issued By
NWS Detroit/Pontiac MI
Expires
August 12, 2026 at 9:00 PM ET
Last Checked
36 minutes ago
What To Do
📋 Official NWS Guidance
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. Stay away or be swept away. River banks and culverts can become unstable and unsafe.
Also In Effect For
This same Flood Advisory also covers:
Other Active Alerts in Michigan
Flood Advisory
Flood Advisory
Flood Advisory
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Severe Thunderstorm Watch
Get Flood Advisory Alerts for St. Clair County
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Frequently Asked Questions
What does a Flood Advisory mean for St. Clair County, Michigan?
Minor flooding is expected — not severe enough for a warning, but potentially inconvenient or hazardous for travel.
Is this Flood Advisory currently active?
Yes — this alert is active as of our last check (36 minutes ago). It's set to expire August 12, 2026 at 9:00 PM ET.
How do I get notified about Flood Advisory alerts for St. Clair County?
Download StormCast free on Google Play and set St. Clair County, Michigan as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
What other areas does this alert cover?
This same Flood Advisory is also in effect for Sanilac County.