ACUS01 KWNS 230549
SWODY1
SPC AC 230547
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1247 AM CDT TUE OCT 23 2012
VALID 231200Z - 241200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
SLOW STRENGTHENING/AMPLIFICATION OF THE LARGE-SCALE PATTERN IS
FORECAST THIS PERIOD...THOUGH LITTLE PROGRESSION OF THE FLOW FIELD
IS EXPECTED...AS THE WRN U.S. TROUGH STRENGTHENS BUT REMAINS IN
PLACE...AND IN CONJUNCTION THE DOWNSTREAM ERN U.S. RIDGE AMPLIFIES.
WITHIN THE ERN RIDGE...A SHORT-WAVE TROUGH IS FORECAST TO MOVE EWD
AND TRAVERSE THE OH VALLEY THROUGH THE PERIOD.
AT THE SURFACE...A COLD FRONT MOVING SLOWLY ACROSS THE ROCKIES IS
FORECAST TO EMERGE INTO THE PLAINS WITH TIME...BECOMING MORE
WELL-DEFINED DURING THE SECOND HALF OF THE PERIOD.
SHOWERS AND ISOLATED/ELEVATED THUNDERSTORMS ARE FORECAST TO
ACCOMPANY THE UPPER SHORT-WAVE TROUGH CROSSING THE MIDWEST.
MEANWHILE...CAPPING SHOULD LARGELY HINDER DIURNAL DEVELOPMENT ALONG
THE SURFACE FRONT WITH THE POSSIBLE EXCEPTION OF THE UPPER MS
VALLEY. IN BOTH AREAS...STORMS ARE FORECAST TO REMAIN SUB-SEVERE.
FARTHER W...SHOWERS AND ISOLATED/EMBEDDED THUNDERSTORMS WILL AGAIN
AFFECT COASTAL AREAS OF THE PAC NW AND INTO NRN CA...BUT HERE
ALSO...APPRECIABLE SEVERE POTENTIAL IS NOT ANTICIPATED.
..GOSS/GARNER.. 10/23/2012
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