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Tornado Watch 225
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WW0225 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Moderate
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.
   SEL5
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 225
   NWS STORM PREDICTION CENTER NORMAN OK
   1215 PM CDT SAT MAY 2 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          SOUTHERN ARKANSAS
          SOUTHEAST OKLAHOMA
          NORTHEAST TEXAS
   
   EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 1215 PM UNTIL
   700 PM CDT.
   
   TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
   GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
   AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE
   MILES NORTH AND SOUTH OF A LINE FROM 15 MILES WEST OF SHERMAN
   TEXAS TO 40 MILES EAST NORTHEAST OF MONTICELLO ARKANSAS.  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.
   
   DISCUSSION...THUNDERSTORMS ARE EXPECTED TO INCREASE IN COVERAGE AND
   INTENSITY ACROSS THE RED RIVER AREA OF SERN OK AND NERN TX...AS WELL
   AS SRN AR AS UPPER SHORT WAVE TROUGH ADVANCES EAST THIS AFTERNOON.
   LIFT WITH THE UPPER TROUGH WILL AID SURFACE LOW DEVELOPMENT ALONG
   QUASI-STATIONARY FRONT ALONG THE RED ROVER EAST INTO AR. THIS
   DEVELOPMENT...COINCIDENT WITH HEATING OF THE DAY AND DESTABILIZATION
   OF VERY MOIST WARM SECTOR...SHOULD RESULT IN A CORRESPONDING
   INCREASE IN DEEP CONVECTION. IN ADDITION. INCREASINGLY STRONG
   KINEMATICS WITH THE APPROACHING UPPER SYSTEM AND SURFACE DEVELOPMENT
   WILL LEAD TO STRENGTHENING DEEP-LAYER SHEAR SUFFICIENT FOR
   SUPERCELLS CAPABLE OF PRODUCING LARGE HAIL AND HIGH WINDS. LOW LEVEL
   STORM RELATIVE SHEAR IS FORECAST TO STRENGTHEN SUFFICIENTLY
   NEAR/ALONG THE FRONT AND DEVELOPING LOW TO SUPPORT TORNADO POTENTIAL
   INTO THE EARLY EVENING ACROSS THIS REGION.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   500. MEAN STORM MOTION VECTOR 27025.
   
   
   ...CARBIN
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