[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 232227
SWOMCD
SPC MCD 232226
TNZ000-GAZ000-KYZ000-ALZ000-232330-

MESOSCALE DISCUSSION 2047
NWS STORM PREDICTION CENTER NORMAN OK
0426 PM CST WED DEC 23 2015

AREAS AFFECTED...MIDDLE TN...NRN AL

CONCERNING...SEVERE POTENTIAL...TORNADO WATCH LIKELY

VALID 232226Z - 232330Z

PROBABILITY OF WATCH ISSUANCE...95 PERCENT

SUMMARY...A NEW TORNADO WATCH WILL BE ISSUED WITHIN THE HOUR FOR
MIDDLE TN AND PARTS OF NRN AL.

DISCUSSION...AN UPSTREAM BROKEN LINE OF SUPERCELLS ACROSS WRN TN AND
NRN MS WILL APPROACH MIDDLE TN AND NRN AL WITHIN THE NEXT 1-2 HRS.
THESE STORMS HAVE RECENTLY EXHIBITED AN INCREASING TREND IN
LOW-LEVEL ROTATION. MODEST MOISTENING FROM THE S WILL CONTINUE TO
OCCUR AS THE MOIST AXIS SHIFTS EWD. THIS...ALONG WITH 0-1 KM SRH
VALUES RANGING FROM 300-600 M2/S2 RECENTLY OBSERVED PER HTX AND OHX
VWP DATA...SUGGESTS THE TORNADO THREAT WILL CONTINUE TO EXPAND
EWD...REQUIRING ISSUANCE OF A NEW TORNADO WATCH BY 23Z.

..ROGERS/THOMPSON.. 12/23/2015

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

ATTN...WFO...MRX...FFC...LMK...OHX...BMX...HUN...PAH...MEG...

LAT...LON   36588460 34978540 34278612 33938659 33938745 34218805
            35148804 36658784 36588460
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