ZCZC SPCSWOMCD ALL
ACUS11 KWNS 312352 
SPC MCD 312352 
ALZ000-TNZ000-MSZ000-010045-

MESOSCALE DISCUSSION 0315
NWS STORM PREDICTION CENTER NORMAN OK
0652 PM CDT THU MAR 31 2016

AREAS AFFECTED...AL...MS...FAR SRN TN...

CONCERNING...TORNADO WATCH 70...72...

VALID 312352Z - 010045Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 70...72...CONTINUES.

SUMMARY...ALL SEVERE HAZARDS REMAIN POSSIBLE OVER THE NEXT SEVERAL
HOURS...WITH THE LONGEST DURATION TORNADO RISK POTENTIALLY CENTERED
ON NWRN/N-CNTRL AL AND EXTREME SRN TN.

DISCUSSION...NUMEROUS CELLS ARE ONGOING FROM MIDDLE TN INTO SRN
MS/AL. OVERALL CONVECTIVE MODE HAS EVOLVED INTO A MIX OF DISCRETE
SUPERCELLS AND CLUSTERS. WHILE ALL SEVERE HAZARDS ARE POSSIBLE
WITHIN THIS REGIME...RECENT VWP DATA AT BMX/HTX/MXX HAVE SAMPLED
SOME BACKING AND STRENGTHENING OF WINDS AOB 1 KM AGL. THIS
ENLARGEMENT TO THE LOW-LEVEL HODOGRAPH IS YIELDING 0-1 KM SRH AROUND
250-300 M2/S2. WITH MIDDLE TO UPPER 60S SURFACE DEW POINTS HAVING
OVERSPREAD ALL BUT NERN AL AS AN EARLIER LARGE-SCALE CONVECTIVE
OUTFLOW DECAYED...SETUP MAY SUPPORT A COMPARATIVELY LONGER DURATION
TORNADO RISK ACROSS MOST OF NRN AL INTO LATE EVENING.

..GRAMS.. 03/31/2016

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

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

LAT...LON   35048798 35258687 35318621 35188588 34478607 33798649
            32958687 32168663 31798698 31708811 31658893 31708968
            31939025 32689005 33248939 33508941 33509014 33829052
            34398988 34918888 35048798 

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