Hazard Report Provided By forecast.weather.gov

MIZ047>049-053>055-060>063-068>070-075-076-082-083-181600-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-
St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
Including the cities of Midland, Bay City, Bad Axe, Saginaw, Caro,
Sandusky, Owosso, Flint, Lapeer, Port Huron, Howell, Pontiac,
Warren, Ann Arbor, Detroit, Adrian, and Monroe
907 AM EDT Fri Jul 17 2026

...Air Quality Alert in effect today and extended through Saturday
July 18th...

The Michigan Department of Environment, Great Lakes, and Energy
(EGLE) has issued an Air Quality Alert for July 17 and July 18, 2026,
for elevated levels of fine particulate due to wildfire smoke.
Concentrations on Friday will range from Very Unhealthy in southern
areas to Hazardous in the north. On Saturday concentrations will
range from Unhealthy of Sensitive Groups (USG) in the south to Very
Unhealthy in northern portions of the state.

This is a Statewide Air Quality Alert.

Plumes of smoke from Canadian wildfires continue to drift across the
region. Elevated fine particulate due to the smoke will continue
through Saturday. The threat of increased ozone may come into play
Saturday as well.

Everyone should seek cleaner air indoors and keep activity levels
low. While indoors, take action to improve the indoor air quality
such as:
- closing windows and minimize opening of doors
- if HVAC systems are not equipped with MERV-13 filters or higher,
  use portable air cleaners
- avoid activities that make indoor air quality worse: burning
  candles, using vacuums without a HEPA filter, using gas stoves more
  than necessary, smoking, spraying aerosol products

If you must be outdoors for short periods of time:
- Wear an N95 or P100 respirator marked with NIOSH. The respirator
  should fit tightly, collapse as you breathe in and not let air in
  from the sides.
- Do not use masks for children under age 2.

For up-to-date air quality data for Michigan visit the MiAir site:
Michigan.gov/MiAir

For up-to-date air quality data nationally visit EPAs Air Now site:
AirNow.gov

For further health information, please see MDHHS Wildfire Smoke and
Your Health site: https://www.michigan.gov/mdhhs/safety-injury-
prev/environmental-health/your-health-and-wildfire-smoke

$$

EGLE/TF

Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
402 PM EDT Fri Jul 17 2026

MIZ047>049-053>055-060>063-068>070-075-076-082-083-182015-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-
St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
402 PM EDT Fri Jul 17 2026

This hazardous weather outlook is for southeast Michigan.

.DAY ONE...This Afternoon and Tonight

An Air Quality Alert is in effect today due to wildfire smoke
reaching the surface.

Isolated thunderstorms are possible this afternoon through tonight
as a warm front lifts through the region. Severe weather is not
expected, but localized heavy rain and wind gusts to 40 mph will be
possible. Storm motion will be west to east at 25 mph.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

An Air Quality Alert is in effect Saturday due to wildfire smoke
reaching the surface.

A band of thunderstorms accompanies a southward moving cold front
Saturday afternoon. Scattered strong to severe storms are possible
mainly between noon and 4 PM with damaging wind gusts the primary
threat. Storm motion will be WSW to ESE at 45 mph.

Additional thunderstorms are possible Monday night and Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today and tonight.

$$

Hazard Report Provided By forecast.weather.gov