4Warn Weather – The National Weather Service has issued a flood warning for Wayne County until 2:24 a.m. Saturday and a thunderstorm watch for several counties in Southeast Michigan until 1 a.m.
The thunderstorm watch will be in effect for Genesee, Lapeer, Lenawee, Livingston, Macomb, Monroe, Oakland, Sanilac, St. Clair Washtenaw and Wayne counties until 1 a.m. Friday (Aug. 25).
Supercell thunderstorms will rapidly develop and move through parts of Metro Detroit between 7 p.m. and 12 a.m.
There is plenty of instability, with some late-day sunshine and rising humidity; some storms could contain wind gusts up to 70 mph with large hail.
An isolated tornado is also possible Thursday evening into Friday morning.
Although most storms will be fast-moving, there is enough moisture to drop some fairly heavy rain on top of an already saturated ground, likely leading to more flooding on both the roads and perhaps into people’s basements.
Read: Whitmer activates Michigan emergency operations center in response to flooding: What that means
Expired alerts
Here are the alerts that have already expired.
- Wayne County -- Tornado warning expired at 11 p.m.
- Macomb County -- Thunderstorm warning expired at 11:15 p.m.
- St. Clair County -- Thunderstorm warning expired at 11:15 p.m.
- Genesee County -- Thunderstorm warning expired at 11:15 p.m.
- Lapeer County -- Thunderstorm warning expired at 11:15 p.m.
- Livingston County -- Thunderstorm warning expired at 11:15 p.m.
- Oakland County -- Thunderstorm warning expired at 11:15 p.m.
- Sanilac County -- Thunderstorm warning expired at 11:15 p.m.
- Wayne County -- Thunderstorm warning expired at 11:15 p.m.
- Washtenaw County -- Thunderstorm warning expired at 11:15 p.m.
- Monroe County -- Thunderstorm warning expired at 11:15 p.m.
- Lenawee County -- Thunderstorm warning expired at 11:15 p.m.
Here’s a list of all the active alerts.
- Wayne County -- Flood warning until 2:24 a.m. Saturday.
Click here to read the latest forecast from the 4Warn Weather team.