

050 

WWUS20 KWNS 262303

SEL3

SPC WW 262303

OKZ000-TXZ000-270500-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 443

NWS Storm Prediction Center Norman OK

505 PM CST Wed Dec 26 2018



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Southwest Oklahoma

  Western North Texas



* Effective this Wednesday afternoon and evening from 505 PM

  until 1100 PM CST.



* 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...A relatively fast-moving line of storms will progress

northeastward across the region this evening. While instability is

modest, a narrow corridor of continued moistening/destabilization

will support the potential for isolated severe storms in the

presence of increasingly strong deep-layer/low-level winds. Damaging

winds and isolated severe hail will be possible and some

line-embedded brief tornado risk could exist as well.



The severe thunderstorm watch area is approximately along and 60

statute miles east and west of a line from 20 miles east northeast

of Altus OK to 55 miles southwest of Wichita Falls TX. 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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 441...WW 442...



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 450. Mean storm motion vector

23040.



...Guyer

