SWODY1
SPC AC 220048
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0648 PM CST MON JAN 21 2008
VALID 220100Z - 221200Z
..NO SVR TSTM AREAS FORECAST...
..ERN TX TO ARKLAMISS...
SRN PLAINS PROFILER NETWORK SUGGEST UPR IMPULSE HAS MOVED INTO NWRN
TX/OK THIS EVE WITH A FCST TRACK INTO THE MID-SOUTH BY 12Z.
ENHANCED LLJ ATTENDANT WITH THIS FEATURE WILL VEER/TRANSLATE ACROSS
ERN TX INTO THE ARKLAMISS REGION OVERNIGHT. STRONGEST WARM/MOIST
ADVECTION REGIME...NOW SUPPORTING CONVECTION OVER ERN TX INTO THE
OZARKS...WILL CONSEQUENTLY SHIFT EWD TOWARD THE MS VLY AFT 06Z. 00Z
SHV/LCH/CRP SOUNDINGS SUGGEST BEST ELEVATED INSTABILITY/MID-TROP
LAPSE RATES WILL EXIST/SPREAD ACROSS ECNTRL TX EWD INTO NRN/CNTRL LA
THROUGH THE NIGHT WHERE SPORADIC TSTMS WILL LIKELY EXIST. MINIMAL
MUCAPE/GULF MOISTURE RETURN WILL PRECLUDE SVR TSTMS.
..CNTRL CA...
COLD UPR LOW /H5 AOB MINUS 30 DEG C/ NW OF THE BAY AREA THIS EVE
WILL SLOWLY DIG SWD OVERNIGHT. ISOLD TSTMS HAVE OCCURRED IN THE
MOIST CYCLONIC WLY FLOW REGIME ACROSS PORTIONS OF CNTRL CA THIS
AFTN. WHILE AN ISOLD TSTM CANNOT BE RULED OUT THROUGH MID-EVE...THE
RISK APPEARS LIMITED OVERNIGHT OWING TO DECREASING LOW-LVL LAPSE
RATES.
.RACY.. 01/22/2008
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