

237 

WWUS20 KWNS 121458

SEL9

SPC WW 121458

OKZ000-TXZ000-121600-



URGENT - IMMEDIATE BROADCAST REQUESTED

TEST...Severe Thunderstorm Watch Number 9999...TEST

NWS Storm Prediction Center Norman OK

Issued by 15th OWS Scott Air Force Base IL

955 AM CDT Thu Oct 12 2017



The NWS Storm Prediction Center has issued a...TEST...



* Severe Thunderstorm Watch for portions of

  All of Western Oklahoma

  Small Part of Northern Texas Texas



* Effective this Thursday morning from 955 AM until 1100 AM CDT.



* Primary threats include...

  Isolated damaging wind gusts to 60 mph possible

  Isolated large hail events to 1 inch in diameter possible



SUMMARY...This is a test Severe Thunderstorm Watch issued by the

15th Operational Weather Squadron backing up the Storm Prediction

Center.



The TEST severe thunderstorm watch area is approximately along and

90 statute miles east and west of a line from 15 miles north

northwest of Alva OK to 55 miles southeast of Wichita Falls TX. For

a complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU9).



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 inch. Extreme turbulence and surface wind gusts to 50 knots. A few

cumulonimbi with maximum tops to 450. Mean storm motion vector

27030.



...15_ows

