MESOSCALE DISCUSSION 0814
   NWS STORM PREDICTION CENTER NORMAN OK
   1031 PM CDT SUN MAY 26 2013

   AREAS AFFECTED...ERN MT/NERN WY

   CONCERNING...SEVERE THUNDERSTORM WATCH 222...

   VALID 270331Z - 270530Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 222
   CONTINUES.

   SUMMARY...SEVERE THREAT CONTINUES -- BUT STORMS SHOULD BEGIN TO
   DIMINISH IN THE NEXT COUPLE OF HOURS.

   DISCUSSION...LATEST RADAR SHOWS ISOLATED STRONG/SEVERE STORMS
   CONTINUING IN/NEAR WW 222 ACROSS ERN MT AND ADJACENT NERN WY. 
   STORMS JUST EXITING THE NERN PORTION OF THE WATCH HAVE BEGUN TO
   CONGEAL -- WITH A MESOLOW AND BOWING STRUCTURE NOW EVIDENT.  FARTHER
   S...ISOLATED/ROTATING STORMS PERSIST.  AS A WEAK SELY NOCTURNAL
   LOW-LEVEL JET DEVELOPS...ADDITIONAL STORM CLUSTERING IS EXPECTED --
   WITH CONVECTION LIKELY CONTINUING PAST MIDNIGHT.

   WHILE THE SEVERE POTENTIAL -- AND POSSIBLY AN ISOLATED/BRIEF TORNADO
   -- IS ALSO EXPECTED TO CONTINUE FOR THE NEXT COUPLE OF HOURS...THE
   TREND SHOULD SLOWLY BE DOWNWARD IN TERMS OF INTENSITY...AS THE
   BOUNDARY LAYER CONTINUES TO COOL/STABILIZE.  LATEST OBJECTIVE
   ANALYSES SHOW MIXED-LAYER CAPE DIMINISHING -- AS WOULD BE EXPECTED
   GIVEN THE SEVERAL DEGREE DROP IN TEMPERATURE OBSERVED OVER THE PAST
   COUPLE OF HOURS.  AS THIS CONTINUES...STORMS SHOULD BECOME
   INCREASINGLY ELEVATED...SUGGESTING DIMINISHING WIND THREAT IN THE
   SHORTER TERM...AND EVENTUALLY A DECREASE IN SEVERE HAIL POTENTIAL AS
   WELL.  ASIDE FROM THE POSSIBILITY OF LOCAL/LIMITED EXTENSIONS IN
   TIME OF THE EXISTING WATCH...A NEW WW IS NOT ANTICIPATED.

   ..GOSS.. 05/27/2013


   ATTN...WFO...UNR...BYZ...GGW...RIW...

   LAT...LON   47350661 48210626 47990551 44740391 44060457 43760626
               44950727 46040825 47350661