SWODY1
SPC AC 020047
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0647 PM CST SAT JAN 01 2011
VALID 020100Z - 021200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
AN INTENSE UPPER LEVEL SPEED MAX WITHIN A BROADER TROUGH WILL
CONTINUE TO LIFT NEWD ACROSS THE MIDWEST INTO THE LOWER GREAT
LAKES...AS ANOTHER TROUGH AXIS SWEEPS EWD ACROSS THE CNTRL PLAINS
OVERNIGHT. AT THE SURFACE...A COLD FRONT AND LOW PRESSURE TROUGH
WILL STRETCH FROM THE PIEDMONT INTO THE FL PANHANDLE...BECOMING
QUASI-STATIONARY AHEAD OF THE SECONDARY UPPER WAVE LATE. MODIFIED
RETURN FLOW WITH DEWPOINTS ONLY IN THE 50S TO LOWER 60S WILL
CHARACTERIZE THE WARM SECTOR AHEAD OF THE COLD FRONT...WHERE A FEW
THUNDERSTORMS WILL PERSIST.
ELSEWHERE...AN UPPER LOW WILL SLOWLY SINK SEWD TOWARDS THE CNTRL CA
COAST...WITH ISOLATED LIGHTNING STRIKES POSSIBLE OWING TO STEEPENING
LAPSE RATES OFFSHORE.
...SRN GA INTO THE FL PANHANDLE...
SURFACE ANALYSIS SHOWS NARROW MOIST AXIS INTO THE NERN GULF OF
MEXICO WITH DEWPOINTS INTO THE 65-70 F RANGE. MEANWHILE...A BROAD
AREA OF SHOWERS AND EMBEDDED THUNDERSTORMS PERSISTS AHEAD OF THE
COLD FRONT WITH ISENTROPIC LIFT ASSOCIATED WITH A SWLY LOW LEVEL
JET. 00Z TLH SOUNDING SUGGESTS THAT WHILE DEEP LAYER WIND SHEAR IS
FAVORABLE FOR STORM ORGANIZATION...MAINLY ELEVATED THUNDERSTORMS ARE
ALL THAT SHOULD OCCUR INLAND WITH SURFACE TEMPERATURES IN THE 60S F.
..JEWELL.. 01/02/2011
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