Back to Home
Heat Advisory — Mason, MI, Lake, MI, Osceola, MI, Clare, MI, Oceana, MI, Newaygo, MI, Mecosta, MI, Isabella, MI, Muskegon, MI, Montcalm, MI, Gratiot, MI, Ottawa, MI, Kent, MI, Ionia, MI, Clinton, MI, Allegan, MI, Barry, MI, Eaton, MI, Ingham, MI, Van Buren, MI, Kalamazoo, MI, Calhoun, MI, Jackson, MI
Issued
Expires
7:00 PM CDT · Wed, Jul 15 2026
Issuing Office
NWS KGRR

Affected Areas

Mason, MI Lake, MI Osceola, MI Clare, MI Oceana, MI Newaygo, MI Mecosta, MI Isabella, MI Muskegon, MI Montcalm, MI Gratiot, MI Ottawa, MI Kent, MI Ionia, MI Clinton, MI Allegan, MI Barry, MI Eaton, MI Ingham, MI Van Buren, MI Kalamazoo, MI Calhoun, MI Jackson, MI

Official Bulletin

871
WWUS73 KGRR 150645
NPWGRR

URGENT - WEATHER MESSAGE
National Weather Service Grand Rapids MI
245 AM EDT Wed Jul 15 2026

MIZ037>040-043>046-050>052-056>059-064>067-071>074-151445-
/O.CON.KGRR.HT.Y.0003.000000T0000Z-260716T0000Z/
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 Ionia, Hart, Mount Pleasant, South Haven,
Reed City, Grand Haven, Grand Rapids, Greenville, Ludington,
Muskegon, St. Johns, Jenison, Kalamazoo, Charlotte, Fremont,
Lansing, Holland, Hastings, Alma, Baldwin, Battle Creek, Clare,
Jackson, and Big Rapids
245 AM EDT Wed Jul 15 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

* WHAT...Heat index values up to 104 expected.

* WHERE...Portions of central, south central, southwest, and west
  central Michigan.

* WHEN...Until 8 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat
  illnesses.

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.

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.

&&

$$

RAH