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Tornado Watch 1
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WW0001 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Low Very Low

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
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   Tornado Watch Number 1
   NWS Storm Prediction Center Norman OK
   305 PM CST Sun Jan 21 2018

   The NWS Storm Prediction Center has issued a

   * Tornado Watch for portions of 
     Western Arkansas
     Eastern Oklahoma
     Northeastern Texas

   * Effective this Sunday afternoon and evening from 305 PM until
     1100 PM CST.

   * Primary threats include...
     A few tornadoes possible
     Scattered damaging wind gusts to 70 mph possible

   SUMMARY...Thunderstorms will continue to slowly increase in coverage
   and intensity this afternoon into this evening from north and
   northeastern Texas into southeastern Oklahoma and western Arkansas
   in advance of a strong storm system progressing eastward over the
   Great Plains.  The storm environment will support some threat for
   semi-discrete supercells for the next few hours, and then convection
   should gradually grow upscale into more of a squall line tonight.  A
   few tornadoes with the supercells and/or embedded circulations, as
   well as damaging winds with bowing segments, will be possible.

   The tornado watch area is approximately along and 65 statute miles
   east and west of a line from 30 miles west northwest of Harrison AR
   to 50 miles south southwest of Tyler TX. For a complete depiction of
   the watch see the associated watch outline update (WOUS64 KWNS


   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.


   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 22040.

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Page last modified: January 22, 2018
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