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WWUS20 KWNS 220356

SEL2

SPC WW 220356

ARZ000-LAZ000-TXZ000-221000-



URGENT - IMMEDIATE BROADCAST REQUESTED

Tornado Watch Number 2

NWS Storm Prediction Center Norman OK

1000 PM CST Sun Jan 21 2018



The NWS Storm Prediction Center has issued a



* Tornado Watch for portions of

  Western and central Arkansas

  Northwestern Louisiana

  Extreme northeastern Texas



* Effective this Sunday night and Monday morning from 1000 PM

  until 400 AM CST.



* Primary threats include...

  A couple tornadoes possible

  Isolated damaging wind gusts to 70 mph possible



SUMMARY...Ongoing broken band of supercells will continue to spread

eastward overnight, with some tendency to grow into more linear

structures with time as the cold front eventually overtakes the warm

sector storms.  A couple of tornadoes and damaging gusts will be

possible with the persisting supercells and embedded circulations

within line segments.



The tornado watch area is approximately along and 55 statute miles

east and west of a line from 25 miles northeast of Flippin AR to 70

miles south southeast of Longview TX. For a complete depiction of

the watch see the associated watch outline update (WOUS64 KWNS

WOU2).



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 1...



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

surface and aloft to 0.5 inches. Extreme turbulence and surface wind

gusts to 60 knots. A few cumulonimbi with maximum tops to 400. Mean

storm motion vector 24045.



...Thompson

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