Extreme Heat Warnings in effect across Michigan: Three things to know

Extreme Heat Warnings are in effect across Michigan as a hot, humid stretch settles over the state, with forecasters warning that heat index values could reach 105 degrees or higher in some areas through at least Thursday.

The National Weather Service offices covering Michigan say Monday, June 29, is expected to be the coolest day of the week in West Michigan, before hotter conditions build Tuesday through Thursday. Local coverage says the eastern part of the state is under a Heat Watch while West Michigan is already under Extreme Heat Warnings.

1. The heat is building through midweek

Forecasts cited by local outlets call for highs in the upper 80s to lower 90s on Monday, then 90s to near 100 degrees from Tuesday through Thursday. With humidity added in, the heat index is expected to climb above 100 degrees statewide and into the 105-degree range in some places.

Overnight lows in the 70s are also expected to limit recovery time. That means the state may not get much relief even after sunset.

2. The warning covers much of the state

Big Rapids News reported that Extreme Heat Warnings are in effect across Michigan through at least Thursday. Manistee News reported that alerts were in place across much of the region, with warnings starting Monday afternoon and watches in northern areas.

The warning criteria cited in local coverage say extreme heat alerts are issued when heat index values are expected to reach roughly 105 to 110 degrees for at least two days. AP also reported that the broader Midwest heat wave is affecting tens of millions of people and is pushing cooling centers and event changes across the region.

3. Officials say to take heat precautions now

Local guidance is straightforward: drink water, limit time outdoors, and avoid alcohol and caffeine during the hottest parts of the day. Residents are also being urged to check on cooling centers and other local mitigation options if they need relief from the heat.

Authorities also warn never to leave children or pets in vehicles, since the temperature inside a parked car can become dangerous very quickly.

Forecasters say the heat may ease heading into the July Fourth weekend, with highs in the upper 80s and heat index values around 90 degrees. For now, though, Michigan is in the middle of a dangerous stretch that could linger until Thursday.