ZCZC SPCSWOMCD ALL
ACUS11 KWNS 031800 
SPC MCD 031800 
ALZ000-FLZ000-MSZ000-LAZ000-031930-

MESOSCALE DISCUSSION 0010
NWS STORM PREDICTION CENTER NORMAN OK
1200 PM CST SAT JAN 03 2015

AREAS AFFECTED...SERN MS...SWRN AL...FAR WRN FL PANHANDLE

CONCERNING...TORNADO WATCH 1...

VALID 031800Z - 031930Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 1 CONTINUES.

SUMMARY...TSTMS ALONG AND JUST E OF WW 1 MAY POSE A RISK FOR A
TORNADO AND LOCALLY DAMAGING WINDS. MONITORING FOR A POSSIBLE
DOWNSTREAM WW ISSUANCE OR COORDINATION OF WW 1 AREAL EXTENSION.

DISCUSSION...A PERSISTENT AREA OF SHOWERS JUST OFF THE MOUTH OF THE
MS RIVER HAS DEEPENED INTO A COUPLE OF TSTMS WITH AT LEAST TRANSIENT
WEAK ROTATION NOTED IN THE OFFSHORE CONVECTIVE CLUSTER S OF THE
MS/AL BORDER. THIS CONVECTION APPEARS TO BE ON THE ERN FRINGE OF THE
WAA-DRIVEN ACTIVITY AHEAD OF THE LOWER MS VALLEY COLD FRONT. MOB VWP
DATA SAMPLED SLIGHTLY WEAKER LOW-LEVEL WINDS COMPARED TO FARTHER
W/NW...BUT BACKED SURFACE WINDS FAVOR A SLIGHTLY LARGER CYCLONIC
HODOGRAPH. WITH SURFACE TEMPERATURES HAVING WARMED INTO THE LOWER TO
MIDDLE 70S ALONG THE IMMEDIATE COASTAL PLAIN AMIDST 66-69 DEG F DEW
POINTS...AN OFFSHORE SUPERCELL MAY DEVELOP NE TOWARDS THE MOBILE BAY
AREA WITH A RISK OF A TORNADO AND LOCALLY DAMAGING WINDS. AN
EXTENSION/DOWNSTREAM WW ISSUANCE MAY BE NECESSARY IF FURTHER
INTENSIFICATION BECOMES APPARENT.

..GRAMS/HART.. 01/03/2015

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

ATTN...WFO...MOB...JAN...LIX...

LAT...LON   29718880 29778830 30098753 30438725 30728720 31068736
            31218772 31358806 31378866 31008947 30238990 29968954
            29718880 

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