[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 261534
SWOMCD
SPC MCD 261534
SCZ000-NCZ000-GAZ000-TNZ000-ALZ000-261630-

MESOSCALE DISCUSSION 1397
NWS STORM PREDICTION CENTER NORMAN OK
1034 AM CDT SUN JUN 26 2011

AREAS AFFECTED...NRN PARTS OF AL/GA INTO THE WRN CAROLINAS

CONCERNING...SEVERE POTENTIAL...WATCH LIKELY

VALID 261534Z - 261630Z

TSTMS ARE EXPECTED TO INCREASE IN COVERAGE AND INTENSITY THIS
AFTERNOON ALONG RESIDUAL COLD POOL/OUTFLOW BOUNDARY WITH ATTENDANT
RISKS FOR DAMAGING WINDS AND HAIL.  A WW WILL LIKELY BE REQUIRED.

SYNTHESIS OF LATEST SURFACE OBSERVATIONAL AND RADAR DATA INDICATE
THE LEADING EDGE OF AN EXPANSIVE COLD POOL REMNANT FROM RECENTLY
DECAYED NOCTURNAL MCS EXTENDING FROM JUST E OF TRI-S OF CHA-S OF HSV
SLOWLY MOVING SWD/SEWD.  12Z JAN/BMX/FFC SOUNDINGS REVEALED THE
PRESENCE OF STEEP MIDLEVEL LAPSE RATES /I.E. AROUND 7.5 C PER KM/
ATOP A MOIST BOUNDARY LAYER...RESULTING IN A MODERATELY TO STRONGLY
UNSTABLE AIR MASS ALREADY THIS MORNING.  INTENSE DIABATIC WARMING
WITHIN INFLOW BOUNDARY LAYER WILL SUPPORT FURTHER DESTABILIZATION
WITH MLCAPE INCREASING TO 3000-3500 J/KG IN AREAS THIS AFTERNOON.

THOUGH REGION WILL REMAIN TO THE S OF STRONGER MID AND UPPER-LEVEL
WIND FIELD...THERMODYNAMIC ENVIRONMENT WILL BE FAVORABLE FOR UPSCALE
GROWTH OF STORMS INTO ONE OR MULTIPLE CONVECTIVE COMPLEXES WITH
ATTENDANT RISKS OF DAMAGING WINDS AND HAIL.

..MEAD.. 06/26/2011

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

ATTN...WFO...CAE...GSP...MRX...FFC...BMX...HUN...

LAT...LON   33288566 33428686 34108790 34688786 34928751 34738622
            35058463 35568336 35938273 35888228 35448197 34498219
            33788278 33318405 33288566



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