SWODY1
SPC AC 231218
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0718 AM CDT SUN MAR 23 2008
VALID 231300Z - 241200Z
..NO SVR TSTM AREAS FORECAST...
..SYNOPSIS...
PATTERN ACROSS THE LWR 48 THIS PERIOD WILL FEATURE GRADUAL
AMPLIFICATION OF SHORTWAVE TROUGH NOW OVER THE MID MS VLY AS A
SERIES OF IMPULSES CONTINUE SE ALONG ERN SIDE OF PROGRESSIVE NRN
INTERMOUNTAIN REGION TROUGH. EXPANSIVE SFC ANTICYCLONE NOW IN PLACE
E OF THE ROCKIES WILL GIVE WAY TO LEE TROUGHING OVER THE NRN HI
PLNS...WHILE FLAT WAVE NOW FORMING OVER S FL CONTINUES ENE INTO THE
ATLANTIC.
..CNTRL/S FL...
A COLD FRONT MARKING LEADING EDGE OF PREVIOUSLY-MENTIONED SFC HIGH
WILL CONTINUE S ACROSS CNTRL FLORIDA WHILE WEAK WAVE NOW OVER THE
SRN PART OF THE PENINSULA BECOMES A BIT BETTER ORGANIZED AND HEADS
ENEWD. CONVERGENCE/HEATING INVOF WAVE SHOULD SUPPORT ISOLATED TSTMS
..MAINLY OVER S FL THIS AFTN. WEAK LAPSE RATES AND MODEST DEEP
SHEAR SHOULD LIMIT SVR THREAT.
..ELSEWHERE...
ONGOING ELEVATED STORMS IN SW TX SHOULD WEAKEN LATER THIS MORNING AS
COOL AIR MASS CONTINUES TO DEEPEN WITH SFC RIDGE BUILDING S INTO
REGION. ELSEWHERE...A FEW LIGHTNING STRIKES WILL BE POSSIBLE LATE
TODAY/TONIGHT IN WRN WA AS STRONG SHORTWAVE IMPULSE NOW NEARING 130W
CONTINUES ENE TO VANCOUVER ISLAND.
.CORFIDI/HURLBUT.. 03/23/2008
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