MESOSCALE DISCUSSION 1281
   NWS STORM PREDICTION CENTER NORMAN OK
   0317 AM CDT TUE JUN 23 2009
   
   AREAS AFFECTED...WESTERN/NORTHERN NEB INTO SOUTHWEST/SOUTH CENTRAL
   SD
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 494...
   
   VALID 230817Z - 230945Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 494
   CONTINUES.
   
   SEVERE TSTM WATCH 494 CONTINUES UNTIL 13Z...WITH A CONTINUED
   DAMAGING WIND/HAIL RISK ACROSS PORTIONS OF WESTERN/NORTHERN NEB INTO
   SOUTHWEST/SOUTH CENTRAL SD.
   
   WELL-ORGANIZED SEVERE/BOWING MCS...WITH AN EVER INCREASINGLY
   ORGANIZED COLD POOL/MESO-HIGH...CONTINUES TO QUICKLY PROGRESS
   EAST-NORTHEASTWARD AT AROUND 40 KT ACROSS THE EASTERN NEB PANHANDLE
   INTO WEST CENTRAL/NORTHWEST NEB...APPROACHING GRAND/ARTHUR/SOUTHWEST
   CHERRY COUNTIES AS OF 08Z. A 70 KT WIND GUST WAS RECENTLY MEASURED
   AT ALLIANCE NEB /0728Z/...WITH A 53 KT GUST ALSO NOTED AT CHADRON
   NEB AS OF 0752Z. HIGHLY ORGANIZED NATURE OF THE MCS/SURFACE COLD
   POOL...ALONG WITH EAST-SOUTHEASTERLY FLOW IN THE BOUNDARY LAYER
   /REFERENCE SURFACE OBS AND NORTH PLATTE WSR-88D VWP/ AND RESULTANT
   20-30 KT OF LOW LEVEL STORM RELATIVE INFLOW...WILL REMAIN FAVORABLE
   FOR CONTINUED FORWARD PROPAGATION OF THE SEVERE MCS WITH ASSOCIATED
   DAMAGING WIND/SOME HAIL POTENTIAL OVER THE NEXT FEW HOURS INTO
   PORTIONS OF NORTH CENTRAL NEB/SOUTHERN SD.
   
   ..GUYER.. 06/23/2009
   
   
   ATTN...WFO...LBF...UNR...BOU...CYS...
   
   LAT...LON   42750321 43370279 43690002 41889963 41130127 40990256
               41970266 42750321