SWODY1
SPC AC 210535
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1135 PM CST THU JAN 20 2011
VALID 211200Z - 221200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
SRN EXTENT OF A LARGE-SCALE TROUGH MIGRATING THROUGH THE ERN STATES
WILL GRAZE PORTIONS OF FL ON FRIDAY AS ADDITIONAL JET ENERGY DIGS
SEWD THROUGH THE PLAINS. THIS WILL FORCE A COLD FRONT SWD THROUGH
THE FL PENINSULA DURING THE DAY AS A CYCLONE MOVES OFF THE NEW
ENGLAND COAST.
...SRN FL...
BAND OF CONVECTION/THUNDERSTORMS WILL BE ONGOING AT 12Z FRIDAY OVER
CNTRL FL. ADDITIONAL STORMS WILL LIKELY FORM AHEAD OF THE
PRE-EXISTING BAND...EITHER OVER THE ERN GULF WATERS OR INLAND OVER
SRN FL BY MID/LATE MORNING. WARM SECTOR WILL BE CHARACTERIZED BY
1.3-1.5 INCH PRECIPITABLE WATERS AND ONLY MODEST MID-LEVEL LAPSE
RATES RESULTING IN MLCAPES AROUND 1000 J/KG. DEEP-LAYER FLOW WILL
GRADUALLY BECOME LARGELY UNIDIRECTIONAL AHEAD OF THE PRE-FRONTAL
TROUGH/FRONT...BUT WILL BE MARGINALLY SUPPORTIVE OF BRIEF STRONG
STORMS /SMALL-SCALE BOWS-LEWPS/ CAPABLE OF DAMAGING WINDS. ACTIVITY
WILL DIMINISH BY EARLY EVENING AS PRIMARY FORCING FOR ASCENT RAPIDLY
TRANSLATES INTO THE ATLANTIC BASIN.
..RACY.. 01/21/2011
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