

144 

WWUS20 KWNS 302040

SEL6

SPC WW 302040

ARZ000-OKZ000-TXZ000-010400-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 386

NWS Storm Prediction Center Norman OK

340 PM CDT Fri Jun 30 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  West Central Arkansas

  Southern and Central Oklahoma

  Western North Texas



* Effective this Friday afternoon and evening from 340 PM until

  1100 PM CDT.



* Primary threats include...

  Scattered large hail likely with isolated very large hail events

    to 2.5 inches in diameter possible

  Scattered damaging wind gusts to 70 mph likely

  A tornado or two possible



SUMMARY...Scattered thunderstorms are forecast to develop and

intensify across the watch area this afternoon and evening.  Initial

storms will pose a risk of very large hail and perhaps a tornado.

The damaging wind threat will increase this evening.



The severe thunderstorm watch area is approximately along and 60

statute miles north and south of a line from 50 miles west southwest

of Altus OK to 5 miles north of Fort Smith AR. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU6).



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 385...



AVIATION...A few severe thunderstorms with hail surface and aloft to

2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A

few cumulonimbi with maximum tops to 500. Mean storm motion vector

28030.



...Hart

