[MCD] {Spam?} SWOMCD

Mon Mar 20 23:45:20 UTC 2006

ACUS11 KWNS 202347
SWOMCD
SPC MCD 202347 
FLZ000-GAZ000-ALZ000-MSZ000-LAZ000-210145-

MESOSCALE DISCUSSION 0336
NWS STORM PREDICTION CENTER NORMAN OK
0547 PM CST MON MAR 20 2006

AREAS AFFECTED...PORTIONS SRN AL...SRN MS...WRN FL PANHANDLE

CONCERNING...TORNADO WATCH 103...

VALID 202347Z - 210145Z

THREAT FOR DAMAGING WIND AND A FEW TORNADOES CONTINUES ACROSS REGION
ALONG AND SE OF PRIMARY CONVECTIVE BAND -- MOST INTENSE PORTION OF
WHICH WAS EVIDENT AT 2330Z FROM WILCOX COUNTY AL SWWD ACROSS PERRY
COUNTY MS.  CONTINUE WW ALONG/AHEAD OF TSTM LINE.  ANOTHER WW IS
NECESSARY FOR REMAINDER SRN AL SWD TO GULF COAST.

EMBEDDED LEWPS...BOWS AND SUPERCELLS WILL SHIFT EWD TOWARD CORRIDOR
FROM MGM-MOB OVER NEXT 1-2 HOURS...IN ENVIRONMENT OF AT LEAST MRGL
BUOYANCY AND FAVORABLE SHEAR.  SFC ANALYSIS SHOWS WARM FRONT FROM
AMG WNWWD THROUGH AUO AREA THEN BECOMING DIFFUSE BENEATH NERN
PORTION OF CONVECTIVE PLUME.  50-60 NM WIDE BAND OF RELATIVELY DRY
AIR IS EVIDENT S OF THIS WARM FRONT.  PARALLEL MOISTURE GRADIENT IS
EVIDENT NEAR A VLD-MGM LINE...AND SHOULD SHIFT NWD DURING NEXT 1-2
HOURS TO CATCH THERMAL FRONT.  AS THIS OCCURS...AIR MASS ACROSS
PORTIONS S-CENTRAL/SERN AL...S OF WW...WILL BECOME INCREASINGLY
FAVORABLE FOR SEVERE WITH ACTIVITY MOVING INTO AREA FROM W.  AIR
MASS FROM MOISTURE GRADIENT SWD TO AL/FL PANHANDLE COAST IS
CHARACTERIZED BY SFC DEW POINTS LOW-MID 60S F...SUPPORTING MLCAPES
500-800 J/KG BASED ON MODIFIED 12Z RAOBS AND RUC SOUNDINGS.  MOB VWP
DATA SHOWS 50-55 KT LLJ JUST 1 KM AGL...AIDING BOTH LOW LEVEL
HODOGRAPHS AND STORM-RELATIVE INFLOW.

..EDWARDS.. 03/20/2006

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

ATTN...WFO...FFC...TAE...BMX...MOB...JAN...LIX...

30318908 30448985 30798996 31268880 31808784 32408682
32928629 32908588 32698538 32038493 31298471 30838463
30148514 29668529 29678535 29788542 29868540 29918540
30018553 30278602 30398657 30348707 30258774 30238824 

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