[BNAWX] Severe Storm Outlook Narrative

[EMWIN Server]

ACUS11 KWNS 040709
SWOMCD
SPC MCD 040709
TNZ000-GAZ000-ALZ000-040815-

MESOSCALE DISCUSSION 0337
NWS STORM PREDICTION CENTER NORMAN OK
0109 AM CST TUE MAR 04 2008

AREAS AFFECTED...NORTHERN AL AND TN

CONCERNING...SEVERE POTENTIAL...WATCH LIKELY

VALID 040709Z - 040815Z

MONITORING FOR AN INCREASING RISK FOR WIND DAMAGE AND A FEW
TORNADOES FROM NORTHERN AL INTO MIDDLE/EASTERN TN...A WATCH WILL
LIKELY BE NEEDED SOON.

VOLUMETRIC RADAR/SATELLITE IMAGERY...ALONG WITH LIGHTNING NETWORK
DATA...SUGGEST AN UPSWING IN CONVECTIVE INTENSITY HAS OCCURRED
ACROSS NORTHERN AL SINCE AROUND 05Z. WITHIN THE BROADER
MCS...ELONGATED LINEAR SEGMENTS...MANIFESTED BY HIGHER RADAR
REFLECTIVITIES/SMALL ROTATIONAL SEGMENTS...HAVE BECOME MORE APPARENT
WITH TIME. THE LEADING EDGE OF THE MORE INTENSE STORMS WAS NEARING A
HUNTSVILLE TO TUSCALOOSA AXIS AS OF 07Z.

ALTHOUGH INSTABILITY WILL REMAIN MEAGER...A CONCERN FOR ISOLATED
WIND DAMAGE AND PERHAPS A TORNADO OR TWO EXISTS GIVEN AN
INCREASINGLY MOIST AIRMASS AND STRONG DEEP LAYER/LOW LEVEL SHEAR
AHEAD OF DEEPENING SURFACE LOW ACROSS NORTHERN MS INTO MIDDLE TN.
LATEST WSR-88D VWP DATA FROM HUNTSVILLE/NASHVILLE SUGGESTS 0-1 KM
SRH IS IN EXCESS OF 500 M2/S2...WITH ELONGATED/CURVED LOW LEVEL
HODOGRAPHS FAVORABLE FOR LOW LEVEL MESOCYCLONES/SMALL BOWS WITH
POSSIBLE WIND DAMAGE/TORNADOES.

..GUYER.. 03/04/2008

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

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

33558795 34878740 35928629 35528516 34448532 33388615



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