SWODY2
SPC AC 190647
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1247 AM CST MON NOV 19 2007
VALID 201200Z - 211200Z
..NO SVR TSTM AREAS FORECAST...
..SYNOPSIS...
UPPER TROUGH INITIALLY OVER THE ROCKIES IS FORECAST TO
AMPLIFY/EXPAND SEWD TOWARD THE CENTRAL CONUS...WITH CYCLONIC FLOW
EXPECTED ACROSS ALL BUT THE W AND E COASTS BY THE END OF THE PERIOD.
AT THE SURFACE...ASSOCIATED COLD FRONT IS FORECAST TO PRESS STEADILY
SEWD ACROSS THE PLAINS/MIDWEST. BY THE END OF THE PERIOD...THE
FRONT SHOULD EXTEND FROM THE LOWER GREAT LAKES SWWD ACROSS THE MID
MS VALLEY AND INTO TX.
SLY FLOW AHEAD OF THE ADVANCING FRONT WILL RESULT IN THE NLY
ADVECTION OF A WARMER/MODESTLY-MOIST BOUNDARY LAYER. HOWEVER...WEAK
LAPSE RATES -- AND THUS LIMITED CAPE -- ALONG WITH A WARM
LAYER/CAPPING INVERSION NEAR 700 MB SHOULD LIMIT THUNDERSTORM
POTENTIAL. WHILE SHOWERS AND OCCASIONAL LIGHTNING STRIKES SHOULD
DEVELOP INVOF THE FRONT -- PARTICULARLY DURING THE SECOND HALF OF
THE PERIOD...COMBINATION OF MEAGER INSTABILITY AND STRONGER FLOW
ALOFT FORECAST TO REMAIN WELL TO THE COOL SIDE OF THE FRONT SUGGEST
LITTLE IF ANY SEVERE POTENTIAL THROUGH THE PERIOD.
.GOSS.. 11/19/2007
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