SWODY2
SPC AC 290655
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1255 AM CST SUN NOV 29 2009
VALID 301200Z - 011200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
A LARGE UPPER TROUGH WILL CONTINUE MOVING ACROSS THE NORTHEAST...S
OF A VORTEX WHICH WILL REMAIN CENTERED INVOF JAMES BAY THROUGH THE
PERIOD. AS THIS TROUGH ADVANCES EWD...AN ASSOCIATED SURFACE COLD
FRONT WILL SWEEP EWD OFF THE NEW ENGLAND AND MID-ATLANTIC
COASTS...WHILE LINGERING WWD ACROSS THE GULF COAST REGION AND INTO
TX. MEANWHILE...A LARGE UPPER LOW INITIALLY OVER NWRN MEXICO WILL
DRIFT EWD WITH TIME...APPROACHING FAR W TX LATE.
..S TX EWD INTO SRN LA/SWRN MS...
VERY WEAK INSTABILITY WILL PREVAIL ACROSS THE TX/LA VICINITY S OF
THE SAGGING SURFACE FRONT...SUPPORTING THE POTENTIAL FOR SHOWERS AND
A FEW THUNDERSTORMS THROUGH THE PERIOD. SHOWERS AND STORMS MAY
EVOLVE OVERNIGHT FARTHER WWD INTO WRN AND CENTRAL TX...AS INCREASING
WARM ADVECTION -- AND ELEVATED DESTABILIZATION -- SPREADS NEWD AHEAD
OF THE UPPER LOW CROSSING NRN MEXICO. HOWEVER...AN OVERALL LACK OF
APPRECIABLE INSTABILITY ACROSS THE S CENTRAL U.S. THROUGH THE PERIOD
SHOULD PRECLUDE ANY APPRECIABLE SEVERE POTENTIAL.
..GOSS.. 11/29/2009
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