SWODY2
SPC AC 140634
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1234 AM CST SUN FEB 14 2010
VALID 151200Z - 161200Z
...NO TSTM AREAS FORECAST...
...SYNOPSIS AND FORECAST...
AN INTENSE DEEP-LAYER CYCLONE INITIALLY OVER THE OH VALLEY WILL
DEVELOP ENEWD THROUGH THE DAY TWO PERIOD...REACHING THE MID ATLANTIC
COAST BY TUESDAY MORNING. THIS SYSTEM WILL BE ACCOMPANIED BY
SIGNIFICANT HEIGHT FALLS/DYNAMIC FORCING FOR ASCENT WHICH WILL
SPREAD EWD THROUGH THE CNTRL/SRN APPALACHIANS INTO THE MID AND SERN
ATLANTIC COASTAL AREAS.
AT THE SURFACE...LOW PRESSURE COINCIDENT WITH UPPER SYSTEM WILL
GRADUALLY OCCLUDE WHILE A SECONDARY LOW RAPIDLY DEEPENS ALONG THE
MID ATLANTIC COAST. MEANWHILE...ASSOCIATED COLD FRONT WILL PUSH EWD
THROUGH THE CNTRL/SRN APPALACHIANS AND OFF THE ATLANTIC COAST BY
MONDAY NIGHT.
CURRENT SATELLITE-DERIVED PW IMAGERY INDICATES THAT PREVIOUS COLD
FRONT IS RAPIDLY SHUNTING ANY MORE MOIST AND UNSTABLE AIR TO THE S
OF CUBA AND THE YUCATAN CHANNEL. THIS SURGE WILL LIKELY CONTINUE
SEWD THROUGH THE FORESEEABLE FUTURE WITH THE AIR MASS RETURNING NWD
IN ADVANCE OF MONDAY/S COLD FRONT REMAINING LARGELY CONTINENTAL
/I.E. DRY/ IN CHARACTER. WHILE A CONCENTRATED ZONE OF FORCING FOR
ASCENT AND STEEPENING OF MIDLEVEL LAPSE RATES ARE FORECAST IN
ADVANCE OF UPPER SYSTEM...IT APPEARS THAT THE MARGINAL MOISTURE
CONTENT WILL LIMIT THE DEVELOPMENT OF ANY APPRECIABLE CONVECTIVE
INSTABILITY AND RESULTANT POTENTIAL FOR TSTMS.
..MEAD.. 02/14/2010
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