Detroit, Michigan – Drivers across southeast Michigan could encounter water-covered roads before sunrise Saturday as a line of thunderstorms moves through between 2 a.m. and 7 a.m.
According to the National Weather Service in Detroit/Pontiac, a marginal risk for excessive rainfall is in place, with storms expected to produce between 0.50 and 0.75 inches of rain in a short period. The timing targets the early morning hours, increasing the risk for hazardous travel during the start of the weekend.
The greatest concern includes urban areas such as Detroit, Ann Arbor, and Flint, where ponding on roads and poor drainage flooding could develop quickly. Rivers are already running high from prior rainfall, which may lead to additional rises along waterways like the Huron and Clinton rivers.
While widespread flooding is not expected, localized issues could impact low-lying roads, underpasses, and areas prone to poor drainage. Drivers should use caution and avoid flooded roadways, especially in the pre-dawn hours when visibility is limited.
Conditions are expected to improve after 7 a.m. Saturday as the line exits the region, but additional advisories could be issued if rainfall rates increase overnight.
