SWODY2
SPC AC 040505
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1205 AM CDT FRI NOV 04 2011
VALID 051200Z - 061200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
IMPRESSIVE UPPER TROUGH...CURRENTLY DIGGING SEWD THROUGH THE PACIFIC
COASTAL STATES...IS FORECAST TO BE EJECTED FROM THE SRN/CENTRAL
ROCKIES NEWD INTO NRN PLAINS ON SAT...AS ANOTHER STRONG SHORTWAVE
TROUGH DIGS SEWD INTO THE WRN STATES. IN ASSOCIATION WITH THE
LEADING WAVE...A SURFACE LOW...WITH A SWD TRAILING COLD FRONT...WILL
DEVELOP OVER THE CENTRAL ROCKIES...AND DEEPEN AS IT SHIFTS NEWD
AHEAD OF THE UPPER TROUGH INTO THE NRN PLAINS. DESPITE A FAVORABLE
SYNOPTIC SETUP FOR SEVERE WEATHER...LARGE SURFACE RIDGE OVER THE ERN
CONUS SWWD INTO THE GULF WILL LIMIT MOISTURE RETURN TO MAINLY SRN
TX...WELL SOUTH OF STRONG LIFTING. THE COMBINATION OF LARGE SCALE
LIFTING AND STEEPENING LAPSE RATES ALOFT MIGHT RESULT IN ENOUGH
INSTABILITY FOR ELEVATED CONVECTION WITH A FEW LIGHTNING STRIKES
ACROSS PORTIONS OF THE CENTRAL HIGH PLAINS. HOWEVER...THE LACK OF
ANY SUBSTANTIAL BOUNDARY LAYER MOISTURE/INSTABILITY AND A RELATIVELY
COLD COLUMN AHEAD OF THE FRONT...1000-500 MB THICKNESS BETWEEN
552-558M...SHOULD INHIBIT ANY SEVERE STORM THREAT.
..IMY.. 11/04/2011
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