National Weather Service United States Department of Commerce

A Severe Thunderstorm Watch is now in effect for portions of SE Michigan. Wind gusts to 60 mph will be possible as a line of storms tracks through the area at ~35 mph between now and 11 PM.
A Heat Advisory is in effect for all of southeast Michigan from 11 AM to 8 PM today. Heat index values up to around 102 degrees are expected. These hot temperatures and high humidity may cause heat illness.
Increasing chances for showers and thunderstorms this afternoon and evening, ahead of a cold front dropping southeast through Lower Michigan. A Marginal to Slight Risk exists for severe storms capable of isolated damaging wind gusts to near 60 mph, hail up to 1 inch in diameter, and torrential rainfall. Heavy rainfall may result in localized flooding in the heaviest downpours and any repeating thunderstorms, especially across urban areas.
An Air Quality Advisory is in effect Friday due to wildfire smoke.
A Small Craft Advisory is in effect for all of Saginaw Bay Thursday afternoon and evening.