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Severe Thunderstorm Watch 177
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WW0177 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Moderate Moderate

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL7

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 177
   NWS Storm Prediction Center Norman OK
   340 PM CDT Sun May 16 2021

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Southeast Colorado
     Southwest Kansas
     Northeast New Mexico
     Oklahoma Panhandle
     Northwest Texas

   * Effective this Sunday afternoon and evening from 340 PM until
     1100 PM CDT.

   * Primary threats include...
     Scattered large hail and isolated very large hail events to 2
       inches in diameter possible
     Scattered damaging wind gusts to 70 mph possible
     A tornado or two possible

   SUMMARY...Although deep-layer winds are not overly strong, a
   semi-moist and moderately unstable environment will support
   initially isolated severe thunderstorm development across southeast
   Colorado, northeast New Mexico into the Texas Panhandle. Isolated
   large hail is the primary risk initially. Over time, one or more
   clusters of storms should evolve by early/mid evening and move
   east-southeastward with increasing damaging wind potential across
   the Texas Panhandle toward the Low Rolling Plains.

   The severe thunderstorm watch area is approximately along and 105
   statute miles north and south of a line from 70 miles west northwest
   of Clayton NM to 65 miles east southeast of Borger TX. For a
   complete depiction of the watch see the associated watch outline
   update (WOUS64 KWNS WOU7).

   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
   2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
   few cumulonimbi with maximum tops to 500. Mean storm motion vector
   31020.

   ...Guyer
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