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EXPIRED Severe Thunderstorm Watch #0543 for District Of Columbia, Maryland, South central Pennsylvania, Northern Virginia, The eastern West Virginia Panhandle, Coastal Waters
  • Scattered damaging wind gusts to 70 mph possible
  • Isolated large hail events to 1.5 inches in diameter possible
  • A tornado or two possible

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EXPIRED Severe Thunderstorm Watch #0543

Locations Affected

  • District Of Columbia
  • Maryland
  • South central Pennsylvania
  • Northern Virginia
  • The eastern West Virginia Panhandle
  • Coastal Waters
  • Severe Thunderstorm Watch Summary

    Scattered thunderstorms will likely persist through the afternoon, with some additional storm development expected. The storm environment favors a mix of supercells and line segments with attendant threats of damaging winds and large hail. An isolated tornado or two may also occur.

    Severe Weather Threats

  • Scattered damaging wind gusts to 70 mph possible
  • Isolated large hail events to 1.5 inches in diameter possible
  • A tornado or two possible
  • Severe Thunderstorm Watch Details

    SEL3
    
    URGENT - IMMEDIATE BROADCAST REQUESTED
    Severe Thunderstorm Watch Number 543
    NWS Storm Prediction Center Norman OK
    1140 AM EDT Sun Sep 25 2022
    
    The NWS Storm Prediction Center has issued a
    
    * Severe Thunderstorm Watch for portions of 
      District Of Columbia
      Maryland
      South central Pennsylvania
      Northern Virginia
      The eastern West Virginia Panhandle
      Coastal Waters
    
    * Effective this Sunday morning and evening from 1140 AM until
      700 PM EDT.
    
    * Primary threats include...
      Scattered damaging wind gusts to 70 mph possible
      Isolated large hail events to 1.5 inches in diameter possible
      A tornado or two possible
    
    SUMMARY...Scattered thunderstorms will likely persist through the
    afternoon, with some additional storm development expected.  The
    storm environment favors a mix of supercells and line segments with
    attendant threats of damaging winds and large hail.  An isolated
    tornado or two may also occur.
    
    The severe thunderstorm watch area is approximately along and 60
    statute miles east and west of a line from 15 miles north northwest
    of Harrisburg PA to 40 miles east of Staunton VA. For a complete
    depiction of the watch see the associated watch outline update
    (WOUS64 KWNS WOU3).
    
    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
    1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
    few cumulonimbi with maximum tops to 450. Mean storm motion vector
    27045.
    
    ...Thompson

    National Risk Overview

    Sunday, September 25
    TORNADO: 2%
    HAIL: 5%
    WIND: 15%
    Monday, September 26
    TORNADO: 2%
    HAIL: low
    WIND: 5%
    Tuesday, September 27
    ANY SEVERE: 5%
    Wednesday, September 28
    ANY SEVERE: low / uncertain
    Thursday, September 29
    ANY SEVERE: low / uncertain
    Friday, September 30
    ANY SEVERE: low / uncertain
    Saturday, October 1
    ANY SEVERE: low / uncertain
    Sunday, October 2
    ANY SEVERE: low / uncertain

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