Heads up again tomorrow in the Gulf Coast States to Northern Florida as you will be again in the slight risk of severe thunderstorms once again, tomorrow.
VALID 141200Z - 151200Z
THERE IS A SLGT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM
25 SE 7R4 25 WNW MCB 25 E JAN 30 ENE MGM 30 ENE MCN 30 SE AGS
30 SW CHS ...CONT... DAB 45 N PIE.
GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 20 SSE BPT GLH UOX
25 NW MSL CHA GSP FLO 25 ENE CRE.
GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM IGM DRA NFL 70 E 4LW
55 SSE BKE 27U 10 ENE JAC 10 ENE RKS GJT 4BL GCN IGM.
...SYNOPSIS...
LARGE UPPER LEVEL TROUGH WILL PREVAIL OVER THE WRN STATES ON DAY 2
AS THE NOSE OF A STRONG UPPER LEVEL PACIFIC JET MOVES INTO SRN
CA/SRN AZ RESULTING IN DOWNSTREAM SPLIT FLOW OVER THE CENTRAL
STATES. THE STRONG SHORT WAVE OVER NERN OK PER WV IMAGERY...WILL
BECOME WEAKER ON FRIDAY AS IT BECOMES TEMPORARILY CUT OFF FROM THE
MAIN UPPER LEVEL FLOW...AND MOVES SLOWLY EWD TO THE CENTRAL GULF
COAST STATES. MEANWHILE...A SHORT WAVE TROUGH WILL TRACK WITHIN
THE SWLY NRN STREAM FROM NRN CA/OR COAST TO THE CENTRAL-NRN
ROCKIES/HIGH PLAINS BY 12Z SATURDAY...INDUCING DOWNSTREAM HEIGHT
FALLS OVER PLAINS STATES.
...GULF COAST STATES...
AT THE SURFACE...A WEAK SURFACE WAVE IS PROGGED OVER ERN MS/WRN AL
AT 12Z FRIDAY WITH A BOUNDARY EXTENDING EWD TO CENTRAL/SRN
GA...WHILE A WEAK SURFACE TROUGH EXTENDS SWWD INTO SRN LA. THE
WARM SECTOR AIR MASS WILL BE MOIST WITH SURFACE DEWPOINTS IN THE
LOWER-MID 60S. WITH MID-LEVEL LAPSE RATES 6.5 TO 7.5C/KM
ASSOCIATED WITH COOL MID-LEVEL TEMPERATURES... INSTABILITY MAY
BECOME STRONGER BY AFTERNOON FROM SERN LA EWD TO SRN GA.
MODELS SUGGEST CONVECTION MAY BE ONGOING AT THE BEGINNING OF THE
PERIOD OVER GA INTO FL...WITH ADDITIONAL STORMS DEVELOPING BY
AFTERNOON FROM SERN LA INTO AL/FL PANHANDLE. THERE IS A QUESTION
AS TO THE AMOUNT OF INSTABILITY THAT WILL BE AVAILABLE DUE TO
WIDESPREAD CLOUDS AND ONGOING PRECIPITATION. HOWEVER MODELS
INDICATE RAPID DESTABILIZATION BY MID-AFTERNOON ACROSS THE AREA
WITH INCREASING BOUNDARY LAYER MOISTURE CONVERGENCE ALONG AND NORTH
OF A WARM FRONT OVER S AL/GA. INCREASING EASTERLY SURFACE FLOW
SHOULD BE SUFFICIENT TO PRODUCE SEVERE MULTICELL STORMS.
...INTERMOUNTAIN WEST...
DIFFLUENT UPPER LEVEL FLOW AND MID-LEVEL LAPSE RATES 8-9C/KM SHOULD
RESULT IN ISOLATED THUNDERSTORMS ESPECIALLY WITH AFTERNOON HEATING.
..AFWA.. 03/13/03
NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED FOR 0800Z
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