Weather Alerts
Heat Advisory issued June 21 at 11:58AM EDT until June 22 at 8:00PM EDT by NWS Grand Rapids MI
* WHAT...Heat index values up to 103 expected.
* WHERE...Portions of central, south central, southwest, and west
central Michigan.
* WHEN...Until 8 PM EDT Sunday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
* ADDITIONAL DETAILS...Heat index values will rise to near and
slightly above the 100 degree mark today and Sunday. Little relief
will occur tonight as lows will only fall into the middle to upper
70s.
Beach Hazards Statement issued June 21 at 11:45AM EDT until June 22 at 8:00PM EDT by NWS Grand Rapids MI
* WHAT...High wave action, strong currents, and dangerous
swimming conditions expected. Piers may be heavily swamped by
waves.
* WHERE...Mason, Oceana, Muskegon, Ottawa, Allegan and Van Buren
counties.
* WHEN...Through Sunday evening.
* IMPACTS...Strong currents can pull swimmers into deeper water
and high waves can sweep people off piers.
* ADDITIONAL DETAILS...South winds of 15 to 30 mph will continue
from today into Sunday. Waves will reach 3 to 5 feet south of
Holland and 4 to 7 feet to the north of Holland. Dangerous waves
and currents are expected making for hazardous conditions for
swimmers. South sides of south piers will be the most dangerous
locations to swim...such as South Beach in South Haven, Grand
Haven State Park and Pere Marquette Park in Muskegon.
Air Quality Alert issued June 21 at 11:05AM EDT by NWS Grand Rapids MI
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.
Air Quality Alert issued June 20 at 11:04AM EDT by NWS Grand Rapids MI
Air Quality Advisory for Saturday June 21, 2025
The Michigan Department of Environment, Great Lakes, and Energy
(EGLE) has declared an Air Quality Advisory for June 21, 2025, for
elevated levels of ozone in southwestern 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 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. 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 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; walking or bike riding; delaying or
combining errands; using water-based paints.
For up-to-date air quality data for Michigan visit the MiAir site:
https://air-egle.hub.arcgis.com/
For up-to-date air quality data nationally visit EPAs Air Now site:
https://www.airnow.gov/
Air Quality Advisory
Michigan Department of Environment, Great Lakes, and Energy
June 20, 2025
Small Craft Advisory issued June 21 at 11:41AM EDT until June 22 at 8:00PM EDT by NWS Grand Rapids MI
* WHAT...South winds 15 to 25 knots with gusts up to 30 knots and
waves 3 to 5 feet south of Holland and 4 to 7 feet north of
Holland.
* WHERE...St Joseph to Manistee.
* WHEN...Until 8 PM EDT Sunday.
* IMPACTS...Conditions will be hazardous to small craft.