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Tornado Watch 335
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WW0335 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Moderate
Severe Wind 65 kt+ Wind
High Moderate
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.
   SEL5
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 335
   NWS STORM PREDICTION CENTER NORMAN OK
   850 PM CDT SUN MAY 22 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          NORTHERN ARKANSAS
          THE SOUTHERN MISSOURI BOOTHEEL
          EASTERN OKLAHOMA
   
   EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 850 PM UNTIL
   400 AM CDT.
   
   TORNADOES...HAIL TO 2.5 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 140 STATUTE
   MILES EAST AND WEST OF A LINE FROM 50 MILES EAST NORTHEAST OF
   FLIPPIN ARKANSAS TO 45 MILES EAST SOUTHEAST OF POTEAU OKLAHOMA. 
   FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU5).
   
   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...THIS TORNADO WATCH REPLACES TORNADO
   WATCH NUMBER 330. WATCH NUMBER 330 WILL NOT BE IN EFFECT AFTER
   850 PM CDT. CONTINUE...WW 323...WW 325...WW 326...WW 327...WW
   329...WW 332...WW 333...WW 334...
   
   DISCUSSION...THUNDERSTORM CLUSTERS WITH EMBEDDED SUPERCELLS/BOWS
   WILL PERSIST OVERNIGHT WHILE DEVELOPING ESEWD ALONG A RESIDUAL
   OUTFLOW BOUNDARY ACROSS NRN AR.  THE 00Z LZK SOUNDING REVEALED A
   RELATIVELY MOIST AND STRONGLY SHEARED ENVIRONMENT THAT APPEARS TO BE
   REPRESENTATIVE OF NRN AR...THUS A RISK FOR TORNADOES IS EXPECTED TO
   PERSIST WITH SUPERCELLS AND BOW/BOUNDARY INTERACTIONS.  DAMAGING
   WINDS ARE ALSO LIKELY THE CELL MERGERS AND BOWING SEGMENTS...AS WELL
   AS THE RISK FOR LARGE HAIL GIVEN A RESERVOIR OF STRONG INSTABILITY
   ACROSS OK/AR IN ADVANCE OF THE STORMS.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   550. MEAN STORM MOTION VECTOR 28035.
   
   
   ...THOMPSON
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