

634 

WWUS20 KWNS 220538

SEL6

SPC WW 220538

ARZ000-LAZ000-MSZ000-TXZ000-221300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 156

NWS Storm Prediction Center Norman OK

1240 AM CDT Sat Apr 22 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Central and southern Arkansas

  Northern Louisiana

  Northwestern Mississippi

  East Texas



* Effective this Saturday morning from 1240 AM until 800 AM CDT.



* Primary threats include...

  Isolated very large hail events to 2 inches in diameter possible

  Isolated damaging wind gusts to 70 mph possible

  A tornado or two possible



SUMMARY...The severe-weather threat is forecast to diminish

gradually through the reminder of the night, but may persist in

pockets with clusters of thunderstorms moving eastward across the

region from watch 155.  Damaging wind and sporadic hail are most

probable, though a tornado cannot be ruled out.



The severe thunderstorm watch area is approximately along and 60

statute miles either side of a line from 15 miles south southeast of

Tyler TX to 75 miles north northeast of Greenville MS. 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 155...



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE and ALOFT

TO 2 INCHES. EXTREME TURBULENCE and SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 27030.





...Edwards

