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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
955 AM EDT Mon Jul 15 2019

St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
955 AM EDT Mon Jul 15 2019

This hazardous weather outlook is for southeast Michigan.

.DAY ONE...Today and Tonight

Scattered thunderstorms producing locally heavy rain are expected to
develop this afternoon with daytime heating, then dissipate this
evening. Isolated severe thunderstorms producing wind gusts to 60
mph will be possible in the 3-8 PM time frame, especially north of
I-69. Storm motion will be east at 25 mph.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

An influx of tropical moisture Tuesday into Wednesday will provide
the chance for thunderstorms. Humid and unstable air will sustain the
chances for thunderstorms Thursday into Friday as well.

The afternoon heat index is forecast to reach 98 to 105 degrees
Thursday, Friday, and Saturday over much of the area. There will be
minimal relief at night due to elevated humidity, especially in the
Detroit urban heat island. A heat advisory or excessive heat warning
will be warranted during this time.


Spotter activation is not anticipated.


Air Quality Alert

St. Clair-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
Including the cities of Port Huron, Pontiac, Warren, Ann Arbor,
Detroit, Adrian, and Monroe
347 AM EDT Mon Jul 15 2019

...Air Quality Alert in effect for Monday July 15th...

The Michigan Department of Environment, Great Lakes, and Energy has
declared Monday July 15th 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...Oakland...Macomb...Washtenaw...Wayne...Lenawee and

People and businesses are urged to avoid activities which lead to
ozone formation. These activities include...refueling vehicles or
topping off when refueling, using gasoline powered lawn equipment
and using charcoal lighter fluid. Positive activities
pooling, biking to work, delaying or combining errands and using
water based paints.

It is recommended that active children and adults, and people with
respiratory diseases such as asthma, limit prolonged outdoor

For further information, please see the Michigan Department of
Environment, Great Lakes, and Energy page at



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