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Severe Weather Watches Overview

Watch data currently updates every 15 minutes.

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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