SWODY2
SPC AC 091707
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1107 AM CST SAT FEB 09 2008
VALID 101200Z - 111200Z
..NO SVR TSTM AREAS FORECAST...
..ERN KS/MO/NERN OK...
LOW LEVEL JET WILL STRENGTHEN MARKEDLY ACROSS NWRN TX INTO MO LATER
DAY2 IN RESPONSE TO DIGGING SPEED MAX APPROACHING THE CNTRL ROCKIES.
IT APPEARS LOW LEVEL WARM ADVECTION ATOP SHALLOW ARCTIC AIRMASS
WILL BE PRIMARILY RESPONSIBLE FOR MOISTENING/DESTABILIZING PARCELS
ABOVE THE BOUNDARY LAYER. LATEST VIS IMAGERY SUPPORTS THIS IDEA AS
LOW LEVEL MOISTURE RETURN IS UNDERWAY ACROSS THE COASTAL PLAINS OF
TX. FORECAST SOUNDINGS AFTER MIDNIGHT ACROSS SERN KS/SWRN MO
SUGGEST ELEVATED CAPE ON THE ORDER OF 200-300 J/KG...MORE THAN
ADEQUATE FOR LIGHTNING WITHIN DEEPER CLOUD STRUCTURES.
ADDITIONALLY...MOST OF THIS ACTIVITY WILL DEVELOP ACROSS A REGION
THAT WILL BE SUB-FREEZING AT THE SURFACE SO THUNDER SLEET OR
FREEZING RAIN SHOULD BE COMMON WITH THESE STORMS.
.DARROW.. 02/09/2008
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