[MCD] SWOMCD

Fri May 26 20:30:59 UTC 2006

ACUS11 KWNS 262026
SWOMCD
SPC MCD 262026 
NEZ000-SDZ000-COZ000-MTZ000-WYZ000-262200-

MESOSCALE DISCUSSION 0990
NWS STORM PREDICTION CENTER NORMAN OK
0326 PM CDT FRI MAY 26 2006

AREAS AFFECTED...ERN WY/NE CO/SW SD/WRN NEB

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 262026Z - 262200Z

...CONVECTIVE TRENDS ARE BEING MONITORED FOR POSSIBLE WATCH LATER
THIS AFTN...

AIRMASS ACROSS THE HIGH PLAINS HAS BECOME MODERATELY UNSTABLE WITH
MLCAPE VALUES AROUND 2000-2500 J/KG. STORMS THAT HAVE FORMED ACROSS
THE MOUNTAINS WILL MOVE E/NE INTO THE AREA OF GREATER INSTABILITY
OVER THE NEXT FEW HOURS. IMPULSE NOTED IN WV IMAGERY ACROSS NRN
NM/SRN CO WILL MOVE TOWARD THE AREA AND THIS WILL INCREASE STORM
COVERAGE/INTENSITY. LAPSE RATES ARE VERY STEEP...AND THE COMBINATION
OF FAVORABLE UPSLOPE FLOW AND INCREASING LARGE SCALE ASCENT WILL
LIKELY RESULT IN STRONG TO SEVERE TSTMS LATER THIS AFTN. THE MAIN
THREATS WILL BE MICROBURST WINDS AND LARGE HAIL. FAVORABLE
DIRECTIONAL SHEAR WILL ALSO CONTRIBUTE TO ROTATING UPDRAFTS...WITH
THE POTENTIAL FOR ISOLD TORNADOES.

..TAYLOR.. 05/26/2006

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...LBF...UNR...GLD...BOU...CYS...BYZ...RIW...

39320472 41010580 42820623 44290591 44990481 45120261
44980184 42960184 41740184 40750192 39300289 