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Severe Thunderstorm Watch 69
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WW0069 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate 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.
   SEL9
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 69
   NWS STORM PREDICTION CENTER NORMAN OK
   850 PM CDT SAT MAR 30 2013
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHWEST ARKANSAS
          EASTERN OKLAHOMA
   
   EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 850 PM
   UNTIL 400 AM CDT.
   
   HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
   STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES SOUTH
   SOUTHEAST OF MCALESTER OKLAHOMA TO 35 MILES NORTH NORTHWEST OF
   FAYETTEVILLE ARKANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
   THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
   
   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.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 66...WW 68...
   
   DISCUSSION...TSTMS HAVE RECENTLY INCREASED IN COVERAGE AND INTENSITY
   NEAR AND N OF TULSA IN ADVANCE OF A COLD FRONT SETTLING SWD THROUGH
   NRN OK.  AMBIENT AIR MASS REMAINS RELATIVELY WARM AND MOIST WITH
   MLCAPE ESTIMATED AROUND 1000 J/KG.  MOREOVER...THE TULSA VAD HAS
   SHOW A STEADY STRENGTHENING OF SLY WINDS BELOW 1 KM WHICH IS
   RESULTING IN AN ENLARGED HODOGRAPH WITH MORE THAN SUFFICIENT SHEAR
   FOR SUPERCELLS.  WHILE A BRIEF TORNADO IS POSSIBLE...LARGE HAIL AND
   DAMAGING WINDS WILL BE THE PRIMARY HAZARDS AS STORMS SPREAD SEWD
   ACROSS THE WATCH AREA.
   
   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 31025.
   
   
   ...MEAD
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Page last modified: March 31, 2013
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