MESOSCALE DISCUSSION 0878
   NWS STORM PREDICTION CENTER NORMAN OK
   0206 AM CDT THU MAY 24 2007
   
   AREAS AFFECTED...S CENTRAL KS ACROSS NWRN OK INTO THE TX PANHANDLE
   
   CONCERNING...TORNADO WATCH 295...
   
   VALID 240706Z - 240800Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 295 CONTINUES.
   
   STORMS CONTINUE MOVING EWD ACROSS WW...WITH NEW WW POSSIBLE IN THE
   NEXT HOUR GIVEN THE SCHEDULED 24/08Z EXPIRATION OF WW 295.
   
   COMPLEX LINE OF STORMS -- WITH AREAS OF EMBEDDED ROTATION -- NOW
   EXTENDS FROM A MESOLOW IN S CENTRAL KS SWWD INTO THE TX
   PANHANDLE...ALONG AND AHEAD OF SURFACE COLD FRONT.  AIRMASS AHEAD OF
   THE FRONT/CONVECTIVE LINE REMAINS MOIST/UNSTABLE...WITH 500 TO 1500
   J/KG MEAN-LAYER CAPE NOW INDICATED ACROSS OK AND SRN KS.  WHILE
   OUTFLOW HAS UNDERCUT THE STORMS ACROSS MUCH OF THE TX
   PANHANDLE...STRONGER/MORE SURFACE-BASED STORMS CONTINUE ACROSS NWRN
   OK AND INTO S CENTRAL KS.
   
   THOUGH STRONGEST FLOW ALOFT WILL REMAIN NW OF THE WARM
   SECTOR...DEEP-LAYER SHEAR REMAINS SUFFICIENT FOR ORGANIZED/SEVERE
   STORMS.  THIS COMBINED WITH DEGREE OF INSTABILITY SUGGESTS THAT SOME
   THREAT FOR HAIL AND LOCALLY-DAMAGING WINDS MAY CONTINUE FOR THE NEXT
   SEVERAL HOURS.  HOWEVER...WHILE LOW-LEVEL FLOW WHICH INCREASES
   RAPIDLY TO 50 TO 60 KT BELOW 1 KM AGL CONTINUES TO YIELD LOW-LEVEL
   SHEAR SUPPORTIVE OF AN ISOLATED TORNADO...INCREASINGLY-LINEAR STORM
   MODE SUGGESTS THAT THE TORNADO THREAT SHOULD DIMINISH OVER THE NEXT
   COUPLE OF HOURS.
   
   ..GOSS.. 05/24/2007
   
   
   ATTN...WFO...ICT...OUN...DDC...AMA...
   
   35380166 36769943 37669950 38029878 37399675 35299803
   34789993