SWODY1
SPC AC 231617
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1017 AM CST THU DEC 23 2010
VALID 231630Z - 241200Z
...NO SVR TSTM AREAS FORECAST...
...NM THIS AFTERNOON AND W/NW TX TONIGHT...
A MIDLEVEL SHORTWAVE TROUGH OVER AZ THIS MORNING WILL MOVE EWD OVER
NM THIS AFTERNOON...AND THEN CONTINUE ESEWD TO W TX OVERNIGHT. COLD
MIDLEVEL TEMPERATURES /NEAR -23 C AT 500 MB/ AND ASSOCIATED STEEP
LAPSE RATES WILL CONTRIBUTE TO THE POSSIBILITY OF A FEW LIGHTNING
STRIKES WITHIN THE COMMA CLOUD THIS AFTERNOON ACROSS WRN NM...BUT
WEAK INSTABILITY WILL LIMIT THUNDERSTORM COVERAGE. OVERNIGHT...THE
OBSERVED LOW-LEVEL MOISTURE IN S TX THIS MORNING WILL CONTINUE TO
SPREAD NWD IN A WAA REGIME OVER W CENTRAL TX AND NW TX. MUCAPE OF A
FEW HUNDRED J/KG /BASED NEAR 850 MB/ WILL SUPPORT A FEW ELEVATED
THUNDERSTORMS...MAINLY AFTER 06Z.
..THOMPSON/ROGERS.. 12/23/2010
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