087 
ACUS11 KWNS 051607
SWOMCD
SPC MCD 051606 
TNZ000-ALZ000-KYZ000-MSZ000-MOZ000-ARZ000-051800-

MESOSCALE DISCUSSION 0763
NWS STORM PREDICTION CENTER NORMAN OK
1106 AM CDT MON MAY 05 2003

AREAS AFFECTED...AL TN MS

CONCERNING...TORNADO WATCH 251...

VALID 051606Z - 051800Z

VERY STRONG DEEP LAYER SHEAR OF 50-60 KT COUPLED WITH VEERING
PROFILES NOTED ON VWPS WITH HELICITES AROUND 400 M2/S2 PREVAIL
ACROSS NRN MS/AL AND WRN/MID TN.  WITH CONTINUED SURFACE HEATING
TEMPS INTO THE LOW 80S AND DEWPOINTS IN THE LOW 70S RESULT IN VERY
UNSTABLE/UNCAPPED AIRMASS WITH MUCAPES TO ABOVE 3000 J/KG.

TORNADIC SUPERCELLS HAVE ALREADY DEVELOPED IN RESPONSE TO THESE
CONDITIONS MOVING ACROSS NRN GILES COUNTY TN AT 27050.	BY 17Z THIS 
SUPERCELL WILL BE INTO NRN FRANKLIN COUNTY.

FURTHER S ACROSS NRN MS COUNTIES OF MONTGOMERY...CHOCTAW...WEBSTER
AND CALHOUN...SEVERE THUNDERSTORM HAVE STRONG POTENTIAL TO BECOME
TORNADIC WITHIN THE NEXT HOUR AS THEY MOVE 27050-60 REACHING THE AL
BORDER BY 1700Z.  


..HALES.. 05/05/2003

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

ATTN...WFO...OHX...BMX...HUN...PAH...MEG...JAN...

32819102 34599043 36648943 36368559 35228589 32868721
32758872