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

* WHERE...A portion of southeast Michigan.

* WHEN...From 10 AM to 10 PM EDT Tuesday.

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

The Michigan Department of Environment, Great Lakes, and Energy has
declared Thursday June 20th to be an action day for elevated levels
of ozone. Pollutants are expected to be in the Unhealthy for
Sensitive Groups range.

The action day is in effect for the following Michigan counties...

St. Clair...Livingston...Oakland...Macomb...Washtenaw...Wayne and
Monroe.

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 peak in the mid to upper 90s.

* WHERE...Lenawee, Livingston, Macomb, Monroe, Oakland, Washtenaw,
and Wayne Counties.

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

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

* ADDITIONAL DETAILS...Impacts of heat stress continue to increase
with each consecutive abnormally hot day.

The Michigan Department of Environment, Great Lakes, and Energy has
declared an Air Quality Advisory for Friday, June 21st for elevated
levels of ozone. Pollutants are expected to be in the Unhealthy for
Sensitive Groups range.

The advisory is in effect for the following Michigan counties...

St. Clair...Livingston...Oakland...Macomb...Washtenaw...Wayne and
Monroe.

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 has
declared Thursday June 20th to be an action day for elevated levels
of ozone. Pollutants are expected to be in the Unhealthy for
Sensitive Groups range.

The action day is in effect for the following Michigan counties...

St. Clair...Livingston...Oakland...Macomb...Washtenaw...Wayne and
Monroe.

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 100.

* WHERE...Portions of SE MI.

* WHEN...Until 10 PM EDT Thursday.

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

* WHAT...Heat index values up to 100.

* WHERE...Genesee, Macomb, Oakland, and Wayne Counties.

* WHEN...Until 10 PM EDT Thursday.

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

* ADDITIONAL DETAILS...High temperatures and peak heat index values
have trended lower with the latest forecast. Impacts of heat
stress continue to increase with each consecutive abnormally hot
day. The effects of heat are most impactful for more vulnerable
urban populations.

Showers and scattered thunderstorms will expand across the rest of
Southeast Michigan this morning. The rain will diminish to light
rain or drizzle this afternoon. Cloud to ground lightning will be
the main hazard with any thunderstorm this morning.

* WHAT...Wet snow expected. Total snow accumulations of 1 to 3
inches.

* WHERE...Shiawassee, Genesee, Lapeer, St. Clair, Livingston,
Oakland and Macomb Counties.

* WHEN...Until 1 PM EST this afternoon.

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

* ADDITIONAL DETAILS...Light snow remains possible along and north
of the I-69 corridor through the mid morning hours with
widespread coverage then expected between 7 AM to 1 PM. Light
wet snowfall is favored as the main precipitation type, but
periods of sleet and some rain will be possible. Wind gusts
increase to 30-40 mph during the afternoon and evening, after
snowfall has ended.

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

* WHERE...All of southeast Michigan.

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

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

* ADDITIONAL DETAILS...Dense fog will persist across the area
today, though some fluctuation in visibility can be expected
through the afternoon hours.