[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 231814
SWOMCD
SPC MCD 231814
GAZ000-NCZ000-TNZ000-ALZ000-MSZ000-231945-

MESOSCALE DISCUSSION 2054
NWS STORM PREDICTION CENTER NORMAN OK
0114 PM CDT TUE AUG 23 2005

AREAS AFFECTED...SRN TN...NRN AL...NRN GA...AND NERN MS

CONCERNING...SEVERE THUNDERSTORM POTENTIAL

VALID 231814Z - 231945Z

ISOLATED PULSE SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON
ACROSS THE NRN GULF STATES AND SRN TN. LOCALIZED NATURE OF SEVERE
RISK WITH THESE STORMS WILL PRECLUDE WW ISSUANCE. COVERAGE OF
T-STORMS SHOULD PEAK WITH DIURNAL HEATING MAX BEFORE GRADUALLY
DECREASING THIS EVENING.

STRONG MID-LEVEL RIDGE AXIS REMAINS ANCHORED ALONG THE GULF COAST
WWD INTO CENTRAL TX...WITH WLY 15-25KT 500MB FLOW ACROSS THE NRN
GULF STATES INTO THE SRN APPALACHIANS. AIR MASS CONTINUES TO
DESTABILIZE ALONG AND SOUTH OF DECAYING STATIONARY FRONTAL BOUNDARY
EXTENDING E-W FROM FAR NERN MS INTO FAR NRN GA. THIS FEATURE APPEARS
TO BE PROVIDING A FOCUS FOR SCATTERED THUNDERSTORM DEVELOPMENT AT
18Z. MARGINAL DEEP-LAYER SHEAR SUGGESTS MOST CONVECTIVE UPDRAFTS
WILL BE SHORT-LIVED ACROSS THE DISCUSSION AREA. HOWEVER...MODERATE
INSTABILITY WITH MLCAPE VALUES OF 1500-2500 J/KG DURING THE PEAK
HEATING HOURS MAY BE SUFFICIENT FOR A FEW PULSE SEVERE
THUNDERSTORMS...WITH WET MICROBURSTS THE PRIMARY THREAT. CELLS WILL
TRACK GENERALLY ESEWD AT 5-10KT THROUGH THE REMAINDER OF THIS
AFTERNOON.

..BANACOS.. 08/23/2005

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

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

33748584 33938830 34388966 34958939 35228895 35418825
35548753 35458517 35078398 34238313 33848318 33758364

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