2 products issued by NWS for: Petersburg MI
Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
348 AM EDT Fri May 17 2024

MIZ047>049-053>055-060>063-068>070-075-076-082-083-180800-
Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-
St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
348 AM EDT Fri May 17 2024

This hazardous weather outlook is for portions of southeast
Michigan.



There is a low chance for an isolated embedded thunderstorm within
showers this morning. Renewed shower and thunderstorm chances are
then possible this afternoon and evening between 1 PM to 7 PM. Severe
weather is not expected, however, highly localized wind gusts up to
50 mph will be possible with any stronger storm development. Storm
motion will be west to east at 15 mph.



There will be a slight chance for isolated thunderstorms Sunday
evening. Severe weather is not expected.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

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MIZ063-068>070-075-076-083-190400-
St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Monroe-
Including the cities of Port Huron, Howell, Pontiac, Warren,
Ann Arbor, Detroit, and Monroe
114 PM EDT Fri May 17 2024



The Michigan Department of Environment, Great Lakes, and Energy
(EGLE) has declared an Air Quality Advisory for Saturday May 18th for
elevated levels of ozone in parts of southeast 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 southeast Michigan
counties...

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

Ample sunshine, light winds with a southern component, and
increasing surface and upper-level temperatures will make conditions
conducive for ozone development Saturday. The timing of highest
ozone concentrations will be during the mid-afternoon to early
evening hours.

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 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 include...
driving less, telecommuting, walking or bike riding, delaying or
combining errands, using water-based paints.

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