[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 011819
SWOMCD
SPC MCD 011818
TNZ000-GAZ000-ALZ000-MSZ000-KYZ000-011945-

MESOSCALE DISCUSSION 0654
NWS STORM PREDICTION CENTER NORMAN OK
0118 PM CDT FRI MAY 01 2009

AREAS AFFECTED...TN/NORTHERN AL AND NORTHWEST GA/NORTHEAST MS

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE

VALID 011818Z - 011945Z

VERY HEAVY RAINFALL WILL REMAIN A CONCERN THROUGH THE
AFTERNOON...BUT POTENTIAL FOR DAMAGING WIND GUSTS/SOME HAIL MAY
INCREASE THROUGH MID AFTERNOON ACROSS SOUTHERN TN INTO NORTHERN AL
AND THE ADJACENT PORTIONS OF NORTHEAST MS/NORTHWEST GA. WILL MONITOR
FOR A POSSIBLE SEVERE TSTM WATCH.

EXTENSIVE DEEP CONVECTION CONTINUES TO CONGLOMERATE ACROSS
WESTERN/MIDDLE TN ROUGHLY ALONG I-40 EARLY THIS AFTERNOON. WITH
PROGRESSIVE EXPANSION OF A SURFACE COLD POOL...THE LOOSELY ORGANIZED
MCS MAY BEGIN TO SHOW SOME INCREASE IN FORWARD
PROPAGATION/ACCELERATION SSEWD...WITH THE POSSIBILITY OF DAMAGING
WINDS/SOME HAIL. AMIDST A QUIESCENT LARGE SCALE ENVIRONMENT...A
STEADY BUT WEAKENING MOIST/UNSTABLE INFLUX /1000-1500 J PER KG
MLCAPE/ WILL CONTINUE FROM THE SOUTHWEST INTO THE PERIPHERY OF A
MESO-HIGH/SURFACE COLD POOL ACROSS EASTERN TN/FAR NORTHEAST
AL/NORTHERN GA. WHILE LOW TO MID TROPOSPHERIC WIND FIELDS ARE NOT
PARTICULARLY STRONG...GRADUAL VEERING AND AMPLE INSTABILITY WOULD
SUPPORT A QUASI-ORGANIZED MCS. VERY HEAVY RAINFALL/POTENTIAL
FLOODING SHOULD REMAIN THE PRIMARY THREAT...BUT DAMAGING WIND/SOME
HAIL POTENTIAL WILL CONTINUE TO BE EVALUATED FOR A POSSIBLE SEVERE
TSTM WATCH.

..GUYER.. 05/01/2009

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

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

LAT...LON   36518897 36078768 36438604 36078460 34348575 33648689
            34288863 36518897

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