Grand Rapids, MI Weather Alerts

* WHAT...Heat index values up to 96.

* WHERE...Calhoun, Eaton, Ingham, Jackson, Allegan, Barry,
Kalamazoo, Kent, Ottawa, and Van Buren Counties.

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

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

* WHAT...Heat index values up to 97.

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

* WHEN...Until 8 PM EDT Friday.

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

The Excessive Heat Watch has been replaced. Please see the latest information from NWS Grand Rapids MI on this developing situation.

The Michigan Department of Environment, Great Lakes, and Energy (EGLE)
has declared an Air Quality Advisory for June 19th 2024 for elevated
levels of ozone in the portions of southwest and west 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:

In West Michigan:

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

Clouds start to erode in the early afternoon hours on Wednesday near
the Lake Michigan shoreline, which will give way to USG-level Ozone
concentrations for southwest and west Michigan counties.

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 further information, please see EPAs Air Now site for up-to-
date air quality data: https://www.airnow.gov/

The Michigan Department of Environment, Great Lakes, and Energy (EGLE)
has declared an Air Quality Advisory for June 19th 2024 for elevated
levels of ozone in the portions of southwest and west 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:

In West Michigan:

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

Clouds start to erode in the early afternoon hours on Wednesday near
the Lake Michigan shoreline, which will give way to USG-level Ozone
concentrations for southwest and west Michigan counties.

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 further information, please see EPAs Air Now site for up-to-
date air quality data: https://www.airnow.gov/

* WHAT...Heat index values up to 97.

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

* WHEN...Until 8 PM EDT Friday.

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

ESFGRR

Significant snowmelt is making for a sloppy mess across much of
southern Lower Michigan. Another round of rain moves into the area
after midnight tonight and will drop between 0.50 and 1.00 inches of
rain over the Grand and Kalamazoo River basins. As this rain and
snow melt eventually finds its way into our rivers, we'll see
noteworthy rises on the smaller streams and even on some of the
bigger rivers. This will be especially true along the Grand River
and the tributaries that flow into the Grand River around the
Lansing area.

Currently, we are expecting water levels on the Red Cedar, Looking
Glass, and Maple Rivers to rise to bankfull, and may even approach
minor flood levels this weekend. By early next week, this water will
be moving down the Grand River and may cause water to rise above
bankfull around Comstock Park.

The cold snap last week resulted in ice coverage on parts of the
Grand River, but this ice is weakening steadily with warmer
temperatures and light rain. This ice may start to shift and move as
the water starts to rise this weekend. While this creates a risk for
ice jams, the current threat level for this remains fairly low since
the ice never got very thick and is already losing considerable
strength. However, now is a good time to look around your yard,
collect loose items, and prepare for the upcoming rising water
levels.

This outlook means that elevated water levels and potential impacts
are possible, but not yet certain. Persons with interests along area
rivers should closely monitor the latest forecasts.

This statement will be updated by Thursday afternoon, January 25,
2024

* WHAT...Visibility one quarter mile or less in dense fog.

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

* WHEN...Until 10 PM EST this evening.

* IMPACTS...Hazardous driving conditions due to low visibility.

* WHAT...Mixed precipitation expected. Total snow accumulations of
up to three inches and ice accumulations of a light glaze.

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

* WHEN...From 1 AM to 4 PM EST Tuesday.

* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the morning commute.

* WHAT...Lake effect snow. Additional snow accumulations of up
to two inches.

* WHERE...Oceana, Muskegon, Ottawa, Kent and Allegan counties.

* WHEN...Until 11 AM EST Wednesday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing
snow could significantly reduce visibility. The hazardous
conditions could impact the morning commute.