SWODY2
SPC AC 240655
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1255 AM CST WED FEB 24 2010
VALID 251200Z - 261200Z
...NO TSTM AREAS FORECAST...
...SYNOPSIS/FORECAST...
00Z GFS/ECMWF/NAM REMAIN IN AGREEMENT INTO THE DAY 2 PERIOD SHOWING
A SLOW MOVING...LARGE CLOSED LOW TRACKING ENE TOWARD THE NERN STATES
AND A PACIFIC TROUGH UNDERGOING STRONG DEEPENING AS IT APPROACHES
THE WEST COAST LATE DAY 2. MEANWHILE...A SHORTWAVE TROUGH WILL
AMPLIFY SEWD FROM THE FOUR CORNERS REGION INTO THE SRN PLAINS...AS
AN UPPER RIDGE BUILDS ACROSS WRN NORTH AMERICA DOWNSTREAM OF THE
APPROACHING PACIFIC TROUGH.
NLY LOW LEVEL FLOW ACROSS THE GULF BASIN DURING DAY 1 WILL SHUNT
MOISTURE WELL S...WITH LIMITED MOISTURE RETURN...AT BEST...ACROSS
THE FAR WRN GULF/TX COAST LATE DAY 2 /THU NIGHT/ AS LOW LEVEL WINDS
BECOME SLY AHEAD OF THE APPROACHING FOUR CORNERS TROUGH. STEEP MID
LEVEL LAPSE RATES SPREADING EWD AHEAD OF THE SAME TROUGH AND AN
INCREASE IN LOW LEVEL WAA AND DPVA MAY SUPPORT ELEVATED CONVECTION
ACROSS N TX/SRN OK LATE IN THE FORECAST PERIOD. HOWEVER...FORECAST
SOUNDINGS SUGGEST VERY WEAK ELEVATED INSTABILITY WILL LIKELY
PRECLUDE SUFFICIENT TSTM COVERAGE TO INCLUDE A GENERAL TSTM AREA.
..PETERS.. 02/24/2010
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