WWUS20 KWNS 121808
SEL2
SPC WW 121808
DCZ000-MDZ000-VAZ000-WVZ000-CWZ000-130200-

URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 462
NWS Storm Prediction Center Norman OK
210 PM EDT Tue Jul 12 2022

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  District Of Columbia
  Maryland
  Northern Virginia
  West Virginia
  Coastal Waters

* Effective this Tuesday afternoon and evening from 210 PM until
  1000 PM EDT.

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

SUMMARY...Thunderstorms will increase in coverage and intensity
through the afternoon/evening while spreading eastward from West
Virginia across northern Virginia and Maryland.  The storm
environment will favor clusters and line segments capable of
producing damaging winds up to 70 mph, as well as isolated large
hail near 1 inch diameter.

The severe thunderstorm watch area is approximately along and 135
statute miles east and west of a line from 20 miles north of
Martinsburg WV to 35 miles west of Staunton VA. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU2).

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.

&&

OTHER WATCH INFORMATION...CONTINUE...WW 460...WW 461...

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
27030.

...Thompson