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WHAT: Heat index values up to 104 expected.
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WHERE: Southeast Michigan.
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WHEN: Until 8 PM EDT Wednesday.
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IMPACTS: Hot temperatures and high humidity may cause heat illnesses.
* WHAT...Heat index values up to 104 expected. * WHERE...Southeast Michigan. * WHEN...Until 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. Check with local emergency management officials for information on cooling center availability.
The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has issued an Air Quality Alert for Wednesday July 15th, 2026, for elevated levels of fine particulate due to wildfire smoke. Pollutants within those areas are expected to be in the Unhealthy for Sensitive Groups with the potential for Unhealthy, especially north.
This is a Statewide Air Quality Alert.
Plumes of smoke from Canadian wildfires are expected to move into the region this week. The plumes will reach the upper peninsula this evening, sinking into the northern lower peninsula overnight. Models are showing the smoke plumes will reach the Michigan/Indiana border Wednesday evening.
It is recommended that, when possible, you avoid strenuous outdoor activities, especially those with heart disease and respiratory conditions like asthma. Watch for symptoms including wheezing, coughing, chest tightness, dizziness, or burning in nose, throat, and eyes. You can help reduce air pollution by limiting activities, such as outdoor burning and use of residential wood burning devices.
Tips for households: Keep windows closed overnight to prevent smoke from getting indoors and, if possible, run central air conditioning with MERV-13 or higher rated filters.
For up to date air quality data for Michigan, visit the MiAir site: https://michigan.gov/MiAir
For up to date air quality data nationally, visit see EPA's Air Now site: https://www.airnow.gov
For further health information, please see MDHHS' Wildfire Smoke and Your Health site at https://www.michigan.gov/mdhhs/safety-injury-prev/environmental- health/your-health-and-wildfire-smoke
The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has issued an Air Quality Alert for Wednesday July 15th, 2026, for elevated levels of fine particulate due to wildfire smoke. Pollutants within those areas are expected to be in the Unhealthy for Sensitive Groups with the potential for Unhealthy, especially north. This is a Statewide Air Quality Alert. Plumes of smoke from Canadian wildfires are expected to move into the region this week. The plumes will reach the upper peninsula this evening, sinking into the northern lower peninsula overnight. Models are showing the smoke plumes will reach the Michigan/Indiana border Wednesday evening. It is recommended that, when possible, you avoid strenuous outdoor activities, especially those with heart disease and respiratory conditions like asthma. Watch for symptoms including wheezing, coughing, chest tightness, dizziness, or burning in nose, throat, and eyes. You can help reduce air pollution by limiting activities, such as outdoor burning and use of residential wood burning devices. Tips for households: Keep windows closed overnight to prevent smoke from getting indoors and, if possible, run central air conditioning with MERV-13 or higher rated filters. For up to date air quality data for Michigan, visit the MiAir site: https://michigan.gov/MiAir For up to date air quality data nationally, visit see EPA's Air Now site: https://www.airnow.gov For further health information, please see MDHHS' Wildfire Smoke and Your Health site at https://www.michigan.gov/mdhhs/safety-injury-prev/environmental- health/your-health-and-wildfire-smoke
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