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Severe Weather Watches Overview

Watch data currently updates every 15 minutes.

Severe Thunderstorm Watch #0390 for Central and Southern Lower Michigan, Lake Huron
  • Scattered damaging wind gusts to 70 mph possible
  • Isolated large hail events to 1 inch in diameter possible
  • A tornado or two possible
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Severe Thunderstorm Watch #0390

Locations Affected

  • Central and Southern Lower Michigan
  • Lake Huron

    • Severe Thunderstorm Watch Summary

    Multiple lines and clusters of thunderstorms will move across the watch area this afternoon and early evening, posing a risk of locally damaging wind gusts and isolated hail. A tornado or two cannot be ruled out.

    Severe Weather Threats

  • Scattered damaging wind gusts to 70 mph possible
  • Isolated large hail events to 1 inch in diameter possible
  • A tornado or two possible

    • Severe Thunderstorm Watch Details

    SEL0

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 390
NWS Storm Prediction Center Norman OK
315 PM EDT Sat Jul 24 2021

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Central and Southern Lower Michigan
  Lake Huron

* Effective this Saturday afternoon and evening from 315 PM until
  1000 PM EDT.

* Primary threats include...
  Scattered damaging wind gusts to 70 mph possible
  Isolated large hail events to 1 inch in diameter possible
  A tornado or two possible

SUMMARY...Multiple lines and clusters of thunderstorms will move
across the watch area this afternoon and early evening, posing a
risk of locally damaging wind gusts and isolated hail.  A tornado or
two cannot be ruled out.

The severe thunderstorm watch area is approximately along and 65
statute miles north and south of a line from 40 miles east of Oscoda
MI to 35 miles west of Grand Rapids MI. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU0).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes.

&&

AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few
cumulonimbi with maximum tops to 500. Mean storm motion vector
28030.

...Hart

    National Risk Overview

    Saturday, July 24
    TORNADO: 5%
    HAIL: 5%
    WIND: 15%
    Sunday, July 25
    TORNADO: low
    HAIL: low
    WIND: 5%
    Monday, July 26
    ANY SEVERE: 5%
    Tuesday, July 27
    ANY SEVERE: low / uncertain
    Wednesday, July 28
    ANY SEVERE: low / uncertain
    Thursday, July 29
    ANY SEVERE: low / uncertain
    Friday, July 30
    ANY SEVERE: low / uncertain
    Saturday, July 31
    ANY SEVERE: low / uncertain

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