Hazard Report Provided By forecast.weather.gov

URGENT - WEATHER MESSAGE
National Weather Service Grand Rapids MI
203 PM EDT Mon Jun 29 2026

MIZ037>040-043>046-050>052-056>059-064>067-071>074-300815-
/O.CON.KGRR.XH.W.0001.000000T0000Z-260703T0000Z/
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
Including the cities of Kalamazoo, Mount Pleasant, Battle Creek,
Clare, Grand Rapids, South Haven, Big Rapids, St. Johns, Reed
City, Hastings, Hart, Lansing, Ionia, Holland, Baldwin, Alma,
Fremont, Jackson, Ludington, Grand Haven, Greenville, Charlotte,
Jenison, and Muskegon
203 PM EDT Mon Jun 29 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THURSDAY...

* WHAT...Dangerously hot conditions with daily heat index values
  around 105 degrees expected.

* WHERE...Central, south central, southwest, and west central
  Michigan.

* WHEN...Until 8 PM EDT Thursday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events.

* ADDITIONAL DETAILS...Several days in a row of hot temperatures
  with little relief from overnight low temperatures can increase
  heat stress on the human body.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

CAS

MIZ050-056-057-064-071-010400-
Muskegon-Ottawa-Kent-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison,
Grand Rapids, Holland, and South Haven
120 PM EDT Mon Jun 29 2026

...Air Quality Alert for Tuesday, June 30, 2026...

The Michigan Department of Environment, Great Lakes, and
Energy (EGLE) has declared an Air Quality Advisory for June 30, 2026,
for elevated levels of ozone in west and southwest Michigan.

Pollutants within those areas are expected to be in the
Unhealthy for Sensitive Groups range.

The Air Quality Alert is in effect for the following Michigan
counties:

Muskegon, Ottawa, Kent, Allegan, Van Buren, and Berrien.

Warm temperatures, ample sunlight, and southwest winds will mix with
pollutants to produce surface-level ozone in west and southwest
Michigan.

It is recommended that, when possible, you avoid strenuous outdoor
activities, especially those with heart disease respiratory
conditions like asthma. Watch for symptoms including wheezing,
coughing, chest tightness, dizziness, or burning in nose, throat, or
eyes.

People and businesses are urged to avoid activities which can lead to
ozone formation. These activities include: refueling vehicles or
topping off when refueling, using gasoline powered lawn equipment,
using charcoal lighter fluid.

Positive activities include: driving less, telecommuting, delaying
or combining errands.

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 EPA`s Air Now site:
AirNow.gov


$$

Hazard Report Provided By forecast.weather.gov