Michigan Heat Advisories — Excessive Heat Warnings & Cooling Centers
Heat advisories tracks Live NWS heat advisories and excessive heat warnings for Michigan. Cooling center locations, heat-safety guidance, and at-risk groups. The reading is aggregated by Michigan Gateway from National Weather Service (NWS) · MDHHS · Michigan 211, an authoritative public source, and refreshed automatically throughout the day.
For Michigan residents this indicator is one of several public-health signals that inform day-to-day decisions — from whether it's safe to be outdoors to whether a specific community needs additional attention. Combined with the other health indicators listed at the bottom of this page, it helps residents, journalists, and county officials build a fuller picture of current conditions in Michigan.
The current reading for this indicator updates live on the
Michigan Gateway dashboard.
The data feed below is fetched from National Weather Service (NWS) · MDHHS · Michigan 211 via the
public /api/alerts endpoint.
NWS issues a Heat Advisory when the Heat Index (temperature + humidity) is forecast to reach 100°F+ for 2+ hours, or an Excessive Heat Warning at 105°F+. In Michigan these typically happen in July and August. Heat is the #1 weather-related killer in the U.S. — more than tornadoes, floods, or cold.
- Drink water before you're thirsty. Avoid alcohol and caffeine on hot days.
- Never leave kids or pets in a parked car — interior temps hit 125°F+ within 10 minutes.
- Find a cooling center: dial 2-1-1 or visit https://www.mi211.org
- Check on elderly neighbors at least twice on hot days — heat stroke can develop within 30 minutes.