MESOSCALE DISCUSSION 0141
NWS STORM PREDICTION CENTER NORMAN OK
0159 PM CST SUN FEB 10 2013

AREAS AFFECTED...ECNTRL AND SERN LA THROUGH SRN AND CNTRL MS

CONCERNING...TORNADO WATCH 32...

VALID 101959Z - 102130Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 32 CONTINUES.

SUMMARY...GREATEST TORNADO THREAT NOW THROUGH 22Z APPEARS TO BE
EVOLVING FROM ACROSS SRN MS. OTHERWISE...THREAT FOR DAMAGING WIND
AND TORNADOES WILL PERSIST OVER THE REMAINDER OF WW 32 FROM ECNTRL
AND SERN LA INTO SRN AND SCNTRL MS.

DISCUSSION...NUMEROUS DISCRETE STORMS ARE DEVELOPING WITHIN ZONE OF
WARM ADVECTION AND ISENTROPIC ASCENT ALONG LLJ AXIS FROM SERN LA
INTO SRN MS. STORMS NEAR AND SOUTH OF WARM FRONT ARE SURFACE BASED
AND HAVE ACCESS TO MOIST AND UNSTABLE LOW LEVEL INFLOW WHERE
DEWPOINTS ARE IN THE UPPER 60S AND TEMPERATURES IN THE LOW 70S. VWP
DATA SHOW VERY LARGE HODOGRAPHS ASSOCIATED WITH THE LLJ WITH 400-500
M2/S2 STORM RELATIVE HELICITY. THE DISCRETE STORMS IN SRN MS
CONTINUE TO BECOME BETTER ORGANIZED AS SUPERCELLS AND TORNADOES
APPEAR LIKELY WITH ACTIVITY DEVELOPING NEAR AND SOUTH OF THE WARM
FRONT. THIS BOUNDARY WILL CONTINUE LIFTING SLOWLY NWD DURING THE
REMAINDER OF THE AFTERNOON SUGGESTING THE ENHANCED TORNADO THREAT
WILL EXPAND NWD AND EWD WITH TIME. OTHER STORMS FARTHER WEST WITHIN
THE LINE WILL ALSO POSE A THREAT FOR DAMAGING WIND AND TORNADOES.

..DIAL.. 02/10/2013