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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Detroit/Pontiac MI
356 PM EDT Tue Sep 21 2021

356 PM EDT Tue Sep 21 2021

This hazardous weather outlook is for portions of southeast

.DAY ONE...This Afternoon and Tonight

A Flood Watch is in effect late this afternoon and Tonight for much
of Southeast Michigan. Refer to the latest Flood Watch statement and
forecasts for additional information.

There is a chance of thunderstorms this afternoon and evening across
Southeast Michigan. No severe weather is anticipated but gusty winds
to 40 mph will be possible. Any thunderstorms that develop are
expected to move to the northeast at approximately 40 mph.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

The Flood Watch remains in effect Wednesday and Wednesday night.
Refer to the latest Flood Watch statement and forecasts for
additional information.

Thunderstorms are possible Wednesday and Wednesday night as a strong
area of low pressure lifts into Lower Michigan. No organized severe
weather is anticipated.


Spotter activation will not be needed today and tonight.


Flood Watch

Flood Watch
National Weather Service Detroit/Pontiac MI
344 PM EDT Tue Sep 21 2021

Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer-St. Clair-
Including the cities of Owosso, Pontiac, Saginaw, Sandusky, Ann
Arbor, Detroit, Port Huron, Bad Axe, Lapeer, Flint, Caro, Adrian,
Warren, Monroe, and Howell
344 PM EDT Tue Sep 21 2021


The Flood Watch continues for

* A portion of southeast Michigan, including the following areas,
  Genesee, Huron, Lapeer, Lenawee, Livingston, Macomb, Monroe,
  Oakland, Saginaw, Sanilac, Shiawassee, St. Clair, Tuscola,
  Washtenaw and Wayne.

* Through Thursday morning.

* Widespread showers and embedded thunderstorms will develop along a
  strong cold front this afternoon and evening across Southeast
  Michigan. The cold front will then stall out near Metro Detroit
  tonight and Wednesday. Persistent shower activity with possible
  thunderstorms is expected early Wednesday before a second round of
  widespread rainfall develops again Wednesday night. Rainfall rates
  in excess of 1 inch per hour will be possible particularly this
  afternoon and evening.

* Total rainfall amounts of 2 to 4 inches will be possible across
  much of Southeast Michigan by Thursday morning. Locally higher
  amounts will be possible.


You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.




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