SWODY3
SPC AC 020803
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0203 AM CST WED DEC 02 2009
VALID 041200Z - 051200Z
...SYNOPSIS...
DEEPLY AMPLIFIED UPPER TROUGH FROM THE GREAT LAKES REGION SWWD INTO
THE SRN ROCKIES WILL SHIFT SLOWLY EWD THROUGH THE PERIOD. STRONG
UPPER IMPULSE AND SPEED MAX EMBEDDED WITHIN THE SRN BASE OF THE
UPPER TROUGH ARE FORECAST TO SHIFT EWD FROM TX INTO THE LOWER MS
VALLEY.
...CENTRAL GULF COASTAL STATES...
STATIONARY FRONT WILL BE SITUATED ACROSS THE GULF AND AS STRONG
FORCING WITH THE UPPER TROUGH SPREADS EWD...ISENTROPIC LIFTING WILL
RESULT IN WIDESPREAD PRECIPITATION ACROSS THE GULF/GULF COASTAL
STATES. THE RELATIVELY COOL BOUNDARY LAYER AND LITTLE ELEVATED
INSTABILITY SHOULD LIMIT A THUNDERSTORM OR SEVERE THREAT OVER INLAND
AREAS.
...FL...
THE QUASI-STATIONARY FRONT IS FORECAST TO EXTEND ACROSS THE
CENTRAL/SRN FL PENINSULA. THE AIR MASS WILL BE MODERATELY UNSTABLE
SOUTH OF THE FRONT...WITH SUFFICIENT SHEAR FOR SEVERE STORMS.
HOWEVER...THE STRONGER FORCING IS EXPECTED TO REMAIN ACROSS THE GULF
AND OVER NRN FL...NORTH OF THE WARM FRONT. SINCE ONLY ISOLATED STORM
ARE EXPECTED ACROSS THE WARM SECTOR...NO SEVERE IS FORECAST.
..IMY.. 12/02/2009
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