Detroit, Mich. – Widespread thunderstorms are expected across southeast Michigan this afternoon into the evening, bringing the potential for torrential rainfall rates of up to 2 inches per hour and isolated wind gusts near 60 mph.
According to the National Weather Service in Detroit/Pontiac, a Marginal Risk (Level 1 of 5) is in effect for much of the lower peninsula through early Friday. The storms could trigger localized flash flooding, especially in urban centers such as Detroit, Lansing, and Flint, where water can pool quickly on roads and low-lying areas.
Areas from Grand Rapids to Ann Arbor may also experience quick-hitting downpours, reducing visibility and impacting evening commutes. While the tornado and hail threats remain low, the primary concerns are damaging winds and repeat rounds of heavy rain. Cities like Pontiac, Jackson, and Monroe could see localized flooding in under an hour if storms stall or train over the same area.
Residents are urged to avoid flooded roadways, monitor local alerts, and have multiple ways to receive emergency warnings. Winds could also bring down tree limbs or power lines, so keep devices charged in case of outages.
Storm activity is expected to diminish by early Friday morning, but additional advisories may be issued if conditions worsen.