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Severe Thunderstorm Watch 321
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WW0321 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Low Low
Severe Hail 2"+ Hail
Moderate Low

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
   SEVERE THUNDERSTORM WATCH NUMBER 321
   NWS STORM PREDICTION CENTER NORMAN OK
   705 AM CDT SUN MAY 22 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTH-CENTRAL AND EASTERN ARKANSAS
          FAR NORTHERN MISSISSIPPI
          WESTERN TENNESSEE
   
   EFFECTIVE THIS SUNDAY MORNING AND AFTERNOON FROM 705 AM UNTIL 200
   PM 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 NORTH AND SOUTH OF A LINE FROM 45 MILES WEST
   SOUTHWEST OF HOT SPRINGS ARKANSAS TO 45 MILES NORTHEAST OF TUPELO
   MISSISSIPPI.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).
   
   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.
   
   DISCUSSION...ON THE NOSE OF A MODERATELY STRONG LOW LEVEL
   JET...ELEVATED TSTMS ARE EXPECTED TO CONTINUE TO EXPAND
   EAST-NORTHEASTWARD ACROSS AR INTO NORTHERN MS/WESTERN TN THROUGH THE
   MORNING. THE 12Z OBSERVED RAOB FROM LITTLE ROCK WAS INDICATIVE OF
   STEEP LAPSE RATES ALOFT/AMPLE ELEVATED INSTABILITY...WHICH WILL BE
   SUPPORTIVE OF SEVERE HAIL THIS MORNING. IT IS POSSIBLE THAT SOME OF
   THESE STORMS MAY REMAIN SUSTAINED AND BECOME SURFACE BASED BY LATE
   THIS MORNING/MIDDAY...WITH INCREASING POTENTIAL FOR DAMAGING WIND
   GUSTS IN ADDITION TO SEVERE HAIL.
   
   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 24030.
   
   
   ...GUYER/CORFIDI
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