Watches, Warnings & Advisories



2 products issued by NWS for: 3 Miles W Mason MI

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Grand Rapids MI
1024 PM EDT Fri Jun 20 2025

MIZ037>040-043>046-050>052-056>059-064>067-071>074-211000-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
1024 PM EDT Fri Jun 20 2025

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Tonight

Thunderstorms are possible late tonight. In addition to lightning
and heavy downpours, there is a chance of isolated large hail or
strong wind gusts.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Heat and humidity will increase Saturday and continue through
Tuesday. The heat index will climb to around 100 degrees. Little
relief will be found at night as night time lows only fall to the
mid to upper 70s both Saturday night and Sunday night.

Large waves and strong currents on Lake Michigan both Saturday and
Sunday will make swimming dangerous.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

$$



Heat Advisory

URGENT - WEATHER MESSAGE
National Weather Service Grand Rapids MI
318 PM EDT Fri Jun 20 2025

MIZ056>059-064>067-071>074-210330-
/O.UPG.KGRR.XH.A.0001.250621T1600Z-250625T0000Z/
/O.NEW.KGRR.HT.Y.0001.250621T1600Z-250623T0000Z/
Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-Ingham-Van Buren-
Kalamazoo-Calhoun-Jackson-
Including the cities of Hastings, Battle Creek, Kalamazoo,
Jackson, Jenison, Grand Haven, Charlotte, Lansing, Ionia, St.
Johns, Holland, Grand Rapids, and South Haven
318 PM EDT Fri Jun 20 2025

...HEAT ADVISORY IN EFFECT FROM NOON SATURDAY TO 8 PM EDT SUNDAY...

* WHAT...Heat index values of 100 to 105 degrees expected Saturday
  and Sunday afternoon, with limited recovery Saturday night.

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

* WHEN...From noon Saturday to 8 PM EDT Sunday.

* 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.

&&

$$