Hazard Report Provided By forecast.weather.gov

MIZ050-056-057-064-071-230400-
Muskegon-Ottawa-Kent-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison,
Grand Rapids, Holland, and South Haven
1105 AM EDT Sat Jun 21 2025

The Michigan Department of Environment, Great Lakes, and Energy (EGLE)
has declared an Air Quality Advisory for June 21 and June 22, 2025,
for elevated levels of ozone in western counties of Michigan.
Pollutants within those areas are expected to be in the Unhealthy for
Sensitive Groups (USG, Orange AQI) range.

The Air Quality Advisory for Saturday and Sunday is in effect for
the following Michigan counties:

Allegan, Kent, Muskegon, Ottawa, and Van Buren

We are in the peak of ozone season, and the current forecast shows
ozone-conducive conditions for Saturday and Sunday. Surface temperatures
 in the 90s, coupled with ample sunlight and southwest winds, create
an environment favorable for ozone development along the Lake
Michigan shoreline.

It is recommended that, when possible, you avoid strenuous outdoor
activities, especially those with respiratory diseases such as asthma.

People and businesses are urged to avoid activities which can lead to zone
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;
walking or bike riding;
delaying or combining errands;
using water-based paints.


$$

Coastal Hazard Message
National Weather Service Grand Rapids MI
707 AM EDT Sun Jun 22 2025

MIZ037-043-050-056-221915-
/O.CON.KGRR.BH.S.0006.000000T0000Z-250624T0400Z/
Mason-Oceana-Muskegon-Ottawa-
707 AM EDT Sun Jun 22 2025

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH MONDAY
EVENING...

* WHAT...High wave action, strong currents, and dangerous
  swimming conditions expected. Piers may be heavily swamped by
  waves.

* WHERE...Mason, Oceana, Muskegon and Ottawa counties.

* WHEN...Through Monday evening.

* IMPACTS...Strong currents can pull swimmers into deeper water
  and high waves can sweep people off piers.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions
and do not venture out on piers. Please check with your local
authorities on potential beach closures.

&&

$$

Hazardous Weather Outlook
National Weather Service Grand Rapids MI
345 AM EDT Sun Jun 22 2025

MIZ037>040-043>046-050>052-056>059-064>067-071>074-230745-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
345 AM EDT Sun Jun 22 2025

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

.DAY ONE...Today and Tonight

Hot and humid conditions are expected with apparent temperatures
around 100.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Thunderstorms are possible much of the week. A few storms Monday
could be strong to severe.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$

URGENT - WEATHER MESSAGE
National Weather Service Grand Rapids MI
207 AM EDT Sun Jun 22 2025

MIZ037>040-043>046-050>052-056>059-064>067-071>074-221415-
/O.EXT.KGRR.HT.Y.0001.000000T0000Z-250624T0000Z/
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 Battle Creek, Clare, Charlotte, Grand
Rapids, Grand Haven, Reed City, Fremont, South Haven, Mount
Pleasant, Jenison, Hastings, Baldwin, Ludington, Greenville,
Ionia, Kalamazoo, Big Rapids, Lansing, St. Johns, Hart, Holland,
Jackson, Muskegon, and Alma
207 AM EDT Sun Jun 22 2025

...HEAT ADVISORY NOW IN EFFECT UNTIL 8 PM EDT MONDAY...

* WHAT...Heat index values up to 102.

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

* WHEN...Until 8 PM EDT Monday.

* 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.

Additionally, make sure pets have plenty of water.



&&

$$

04

Hazard Report Provided By forecast.weather.gov