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Tornado Watch 222
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WW0222 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
High High

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL2
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 222
   NWS STORM PREDICTION CENTER NORMAN OK
   310 PM CDT FRI MAY 1 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          SOUTHERN OKLAHOMA
          NORTHWEST TEXAS
   
   EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 310 PM UNTIL
   1000 PM CDT.
   
   TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND
   GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
   AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
   MILES NORTH AND SOUTH OF A LINE FROM 135 MILES WEST SOUTHWEST OF
   WICHITA FALLS TEXAS TO 45 MILES NORTH NORTHEAST OF DURANT
   OKLAHOMA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
   
   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 221...
   
   DISCUSSION...STRONG INSTABILITY IN THE PRESENCE OF PERSISTENT LOW
   LEVEL CONVERGENCE ALONG ADVANCING FRONT AND OUTFLOW BOUNDARIES HAS
   LED TO  A VOLATILE SEVERE WEATHER SITUATION ACROSS NWRN TX AND
   ADJACENT AREAS OF THE RED RIVER IN OK THIS AFTERNOON. EXPECT STORM
   INITIATION SHORTLY NEAR DRYLINE/FRONT INTERSECTION IN WRN SECTIONS
   OF THE WATCH. MLCAPE OF 2500-3000 J PER KG WILL FUEL POTENT UPDRAFTS
   ONCE INHIBITION IS OVERCOME. CELLS SHOULD QUICKLY ACQUIRE SUPERCELL
   CHARACTERISTICS WITH JUST ENOUGH DEEP-LAYER SHEAR TO SUPPORT
   PERSISTENT UPDRAFT ROTATION. VERY LARGE HAIL SHOULD BE ONE OF THE
   MORE SIGNIFICANT THREATS WITH THIS DEVELOPMENT GIVEN MAGNITUDE OF
   CAPE AND STRENGTH OF UPDRAFTS. TORNADO POTENTIAL WILL BE MODULATED
   BY OVERALL STORM EVOLUTION. HOWEVER...CELLS TRACKING NEAR THE FRONT
   AND OUTFLOW WILL HAVE ENHANCED LOW LEVEL SHEAR/VORTICITY AVAILABLE
   TO THEM AND COULD END UP PRODUCING A COUPLE OF TORNADOES.
   EVENTUALLY...CELL MERGERS MAY SUPPORT UPSCALE EVOLUTION INTO A
   SEVERE MCS TRACKING EWD/SEWD NEAR AND SOUTH OF THE RED RIVER THROUGH
   THIS EVENING.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   500. MEAN STORM MOTION VECTOR 29015.
   
   
   ...CARBIN/DARROW
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