MESO: Mesoscale Discussion 2196

ACUS11 KWNS 011450
SWOMCD
SPC MCD 011449
FLZ000-ALZ000-MSZ000-LAZ000-011615-

MESOSCALE DISCUSSION 2196
NWS STORM PREDICTION CENTER NORMAN OK
0949 AM CDT MON SEP 01 2008

AREAS AFFECTED...SRN MS...LA...SRN AL...WRN FL PANHANDLE

CONCERNING...TORNADO WATCH 877...

VALID 011449Z - 011615Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 877 CONTINUES.

THE TORNADO THREAT ASSOCIATED WITH HURRICANE GUSTAV WILL GRADUALLY
SPREAD WWD ACROSS LA THIS AFTERNOON. A NEW WW WILL LIKELY BECOME
NECESSARY FURTHER WEST INTO PARTS OF LA BY EARLY THIS AFTERNOON.

HURRICANE GUSTAV IS CURRENTLY LOCATED ABOUT 100 MILES SOUTH OF BATON
ROUGE LA. THE CENTER IS FORECAST BY THE NATIONAL HURRICANE CENTER TO
MOVE WNWWD INTO SRN LA THIS AFTERNOON. THREE WELL-DEFINED RAINBAND
EXTEND FROM THE CENTER NWD ACROSS MUCH OF THE ERN THIRD OF LA...SRN
MS AND FAR SRN AL. THE LATEST RUC ANALYSIS SUGGESTS STRONG LOW-LEVEL
WINDS EXIST ACROSS THIS AREA AS FAR NORTH AS JACKSON MS AND AS FAR
EAST AS PENSACOLA FL. REGIONAL WSR-88D VWPS ACROSS THE CORRIDOR FROM
THE FL PANHANDLE WWD INTO SERN LA SUGGEST 0-1 KM SHEAR VALUES RANGE
FROM 40 TO 60 KT WHICH COMBINED WITH LCL HEIGHTS AT OR BELOW 500
METERS SHOULD BE FAVORABLE FOR ROTATING STORMS WITH TORNADO
POTENTIAL. INSTABILITY SHOULD ALSO GRADUALLY INCREASE THIS AFTERNOON
AND THIS MAY ENHANCE THE TORNADO THREAT AS RAINBAND SPREAD WWD
ACROSS CNTRL AND SRN LA.

..BROYLES.. 09/01/2008

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

ATTN...WFO...TAE...MOB...JAN...LIX...LCH...

28958976 28729029 28779113 28949131 29339130 29629106
29819109 30009127 30289157 30529174 30929183 31069168
31169162 31419157 31609140 31709130 31599114 31569067
31689070 31709029 31818871 31878845 31688844 31708808
31778816 31968809 31988768 31838759 31838691 31548689
31488668 30998671 30948636 30488641 30468612 30398612
30388641 30058643 29908771 29888801 29868846 29548860
29388873 29108867 28728897 28628925 28608954 28778971

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