MESOSCALE DISCUSSION 0366
   NWS STORM PREDICTION CENTER NORMAN OK
   0920 PM CDT WED MAR 28 2007
   
   AREAS AFFECTED...SWRN SD...WRN NEB...FAR ERN CO...WRN KS
   
   CONCERNING...TORNADO WATCH 81...83...
   
   VALID 290220Z - 290400Z
   
   CORRECTED TO CHANGE WRN SC TO WRN SD
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 81...83...CONTINUES.
   
   EXTENSIVE AREA OF SEVERE/SUPERCELL STORMS EXTENDS SWD ACROSS THE
   HIGH PLAINS FROM WRN SD SWD INTO TX -- INCLUDING AREAS IN AND NEAR
   WW 81 AND 83.  ALONG WITH LARGE HAIL AND DAMAGING WIND
   THREAT...NUMEROUS REPORTS OF TORNADOES HAVE BEEN RECEIVED OVER THE
   PAST COUPLE OF HOURS ACROSS WRN NEB/WRN KS.  WITH 40 KT SELY
   LOW-LEVEL JET OBSERVED ACROSS THE HIGH PLAINS...EXPECT STORMS TO
   CONTINUE TO INCREASE IN COVERAGE.  MODERATELY-UNSTABLE AIRMASS
   /MEAN-LAYER CAPE 1000 TO 2000 J/KG/ COMBINED WITH STRONG/VEERING
   FLOW WITH HEIGHT SUGGESTS THAT SEVERE/TORNADO THREAT WILL LIKEWISE
   CONTINUE.
   
   WITH WW 81 SET TO EXPIRE AT 29/03Z...A NEW WW WILL BE REQUIRED
   ACROSS PARTS OF SWRN SD INTO WRN NEB.
   
   ..GOSS.. 03/29/2007
   
   
   ATTN...WFO...ICT...OUN...ABR...GID...LBF...DDC...UNR...GLD...AMA...PUB...BOU...CYS...
   
   44150114 39879926 36979874 36890273 41120279 43940246