MESOSCALE DISCUSSION 1177
   NWS STORM PREDICTION CENTER NORMAN OK
   0850 PM CDT FRI JUN 10 2011
   
   AREAS AFFECTED...TX S PLAINS..NWRN TX AND THE SERN TX
   PANHANDLE...SWRN OK
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 459...
   
   VALID 110150Z - 110245Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 459
   CONTINUES.
   
   CONVECTION HAS EVOLVED INTO A LOOSELY ORGANIZED LINE AS IT
   PROPAGATES NEWD TOWARDS SWRN OK...POSING A THREAT FOR DMGG WIND
   GUSTS AND HAIL. ADDITIONAL THUNDERSTORM DEVELOPMENT HAS OCCURRED OUT
   AHEAD OF THIS LINE ALONG A NEARLY STATIONARY BAROCLINIC ZONE.
   RELATIVELY MOIST INFLOW FROM THE SE ALONG WITH WEAK FORCED ASCENT
   ASSOCIATED WITH A MIDLEVEL IMPULSE MOVING ACROSS THE WRN TX
   PANHANDLE/S PLAINS SHOULD CONTINUE TO MAINTAIN CONVECTION INTO THE
   EVENING HRS. THE THREAT FOR DMGG WINDS SHOULD SLOWLY DECREASE AS THE
   BOUNDARY LAYER COOLS BUT AT LEAST A MARGINAL SVR THREAT SHOULD
   PERSIST THROUGH THE SCHEDULED WATCH EXPIRATION TIME OF 0400Z. 
   
   THUNDERSTORMS HAVE ALSO FORMED S OF THE WW AREA N/E OF BGS ALONG A
   SLOWLY SWD SAGGING OUTFLOW BOUNDARY. A SHORT-LIVED THREAT FOR
   HAIL/DMGG WINDS MAY EXIST...BUT GENERAL NWD MOVEMENT OF THESE STORMS
   INTO A MORE STABLE AIR MASS SHOULD LIMIT ANY SIGNIFICANT THREAT.
   
   ..ROGERS.. 06/11/2011
   
   
   ATTN...WFO...OUN...SJT...LUB...AMA...MAF...
   
   LAT...LON   32839975 32490075 32290155 32440231 32630247 32860233
               35020038 35229978 35339917 35049768 32839975