[MCD] SWOMCD

Sat May 27 00:34:54 UTC 2006

ACUS11 KWNS 270033
SWOMCD
SPC MCD 270033 
TNZ000-GAZ000-ALZ000-KYZ000-MSZ000-MOZ000-ARZ000-270200-

MESOSCALE DISCUSSION 0993
NWS STORM PREDICTION CENTER NORMAN OK
0733 PM CDT FRI MAY 26 2006

AREAS AFFECTED...SERN MO...NERN AR....WRN KY...WRN AND MIDDLE
TN...NRN AL

CONCERNING...SEVERE THUNDERSTORM WATCH 406...409...

VALID 270033Z - 270200Z

NUMEROUS INTENSE TSTMS PERSIST FROM SERN MO/NERN AR EWD TO MIDDLE TN
THIS EVENING ALONG QUASI-STATIONARY FRONTAL ZONE IN THE PRESENCE OF
EXTREME INSTABILITY. LATEST BNA/LZK RAOBS APPEAR TO CONFIRM
SHORT-TERM GUIDANCE THAT SHEAR ACROSS THE REGION REMAINS SOMEWHAT
LIMITED. NONETHELESS...MAGNITUDE OF INSTABILITY /MLCAPE IN EXCESS OF
3000 J/KG/ WILL CONTINUE TO CONTRIBUTE TO VIGOROUS MULTICELLULAR
UPDRAFTS PRODUCING SOME HAIL AS WELL AS SEVERE WIND GUSTS. SOMEWHAT
STRONGER DEEP LAYER SHEAR APPROACHING 30KT ACROSS NRN/CNTRL PORTION
OF WW 409 COULD PROMOTE SUPERCELL STORM STRUCTURE WITH CELLS OVER
MIDDLE TN.

EXPECT SEVERE STORM THREAT TO GRADUALLY DEVELOP INTO SRN PORTIONS OF
WATCHES 406 AND 409 OVER THE NEXT SEVERAL HOURS AS LIFT ALONG THE
DEVELOPING COLD POOL...COMBINED WITH FAVORABLE BACKGROUND ASCENT
FROM MCV MOVING EAST FROM AR...MAINTAIN A SUPPORTIVE ENVIRONMENT FOR
DEEP MOIST CONVECTION.

..CARBIN.. 05/27/2006

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

ATTN...WFO...MRX...FFC...OHX...BMX...HUN...PAH...MEG...LSX...LZK...SGF...

34338559 35069036 35539285 37039283 37139133 36628806
36018548 