

723 

WWUS20 KWNS 132120

SEL1

SPC WW 132120

TXZ000-140400-



URGENT - IMMEDIATE BROADCAST REQUESTED

Tornado Watch Number 21

NWS Storm Prediction Center Norman OK

320 PM CST Sat Mar 13 2021



The NWS Storm Prediction Center has issued a



* Tornado Watch for portions of

  West Texas



* Effective this Saturday afternoon and evening from 320 PM until

  1000 PM CST.



* Primary threats include...

  A couple tornadoes possible

  Scattered damaging winds and isolated significant gusts to 80

    mph possible

  Isolated very large hail events to 2.5 inches in diameter

    possible



SUMMARY...Initial clusters should evolve into a linear segment that

may attempt to bow across eastern portions of the Permian Basin into

the Big Country. A couple tornadoes are possible later this evening

as the bowing line intensifies or if a trailing semi-discrete

supercell can be maintained across the Lower Pecos Valley.



The tornado watch area is approximately along and 55 statute miles

east and west of a line from 80 miles northeast of Big Spring TX to

55 miles south southeast of Fort Stockton TX. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU1).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



REMEMBER...A Tornado Watch means conditions are favorable for

tornadoes and 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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 19...WW 20...



AVIATION...Tornadoes and a few severe thunderstorms with hail

surface and aloft to 2.5 inches. Extreme turbulence and surface wind

gusts to 70 knots. A few cumulonimbi with maximum tops to 500. Mean

storm motion vector 24040.



...Grams

