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Tornado Watch 171
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WW0171 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
High 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.
   SEL1
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 171
   NWS STORM PREDICTION CENTER NORMAN OK
   320 PM CDT SAT MAY 18 2013
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   
   * TORNADO WATCH FOR PORTIONS OF 
     WESTERN AND CENTRAL OKLAHOMA
     NORTHWEST TEXAS
   
   * EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 320 PM UNTIL
     1100 PM CDT.
   
   * PRIMARY THREATS INCLUDE...
     SEVERAL TORNADOES POSSIBLE
     SEVERAL LARGE HAIL EVENTS LIKELY WITH A FEW VERY LARGE HAIL
       EVENTS TO 3 INCHES IN DIAMETER POSSIBLE
     SEVERAL DAMAGING WIND GUSTS TO 70 MPH LIKELY
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE
   MILES EAST AND WEST OF A LINE FROM 25 MILES EAST NORTHEAST OF
   ALVA OKLAHOMA TO 30 MILES SOUTH SOUTHEAST OF ABILENE TEXAS.  FOR
   A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU1).
   
   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 170...
   
   DISCUSSION...SEVERE STORMS ARE EXPECTED TO INITIATE NEAR THE DRYLINE
   IN THE VICINITY OF THE WESTERN OKLAHOMA/TEXAS PANHANDLE BORDER
   AREA... SOUTHWARD ACROSS PARTS OF NORTHWEST TEXAS...TOWARD THE
   EDWARDS PLATEAU...DURING THE NEXT FEW HOURS AS INHIBITION WEAKENS IN
   PEAK AFTERNOON HEATING.  DISCRETE SUPERCELLS WILL POSE A RISK FOR
   VERY LARGE HAIL AND A FEW TORNADOES...BEFORE ACTIVITY GROWS UPSCALE
   THIS EVENING...WITH DAMAGING WIND POTENTIAL PERHAPS BECOMING MORE
   PROMINENT.  AS LOW-LEVEL HODOGRAPHS BECOME CLOCKWISE CURVED AND
   QUITE LARGE THIS EVENING...AND BOUNDARY LAYER RELATIVE HUMIDITY
   INCREASES WITH DIURNAL COOLING...A WINDOW OF OPPORTUNITY MAY EXIST
   FOR A STRONG TORNADO OR TWO...BEFORE CONVECTION CONSOLIDATES INTO
   ORGANIZED CLUSTERS.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   550. MEAN STORM MOTION VECTOR 25030.
   
   
   ...KERR
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