SWODY2
SPC AC 150555
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1255 AM CDT SAT OCT 15 2011
VALID 161200Z - 171200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
WHILE FAST WNWLY FLOW AT MID LEVELS WILL INITIALLY AFFECT THE NRN
HALF TO 2/3 OF THE CONUS S AND SW OF THE LARGE/PERSISTENT ERN CANADA
VORTEX...A SHORT-WAVE TROUGH MOVING ACROSS THE PAC NW EARLY WILL DIG
SEWD INTO THE ROCKIES -- THUS BEGINNING A RE-EXPANSION OF A LARGE
ERN CONUS TROUGH.
AT THE SURFACE...THE PATTERN ACROSS THE U.S. WILL BE GENERALLY
BENIGN...S OF THE VERY DEEP OCCLUDED LOW EXPECTED TO LINGER INVOF
JAMES BAY THROUGH THE PERIOD. WITH TIME...WEAK CYCLOGENESIS IS
FORECAST INVOF THE CENTRAL PLAINS ALONG A SURFACE BAROCLINIC ZONE AS
THE AFOREMENTIONED/DIGGING SHORT-WAVE TROUGH MOVES INTO THE ROCKIES.
A FEW THUNDERSTORMS EMBEDDED WITHIN A LARGER AREA OF SHOWERS CAN BE
EXPECTED OVER PARTS OF ERN OREGON AND INTO ID/SWRN MT/WRN WY DURING
THE AFTERNOON...AS THE UPPER SHORT-WAVE TROUGH CROSSES THIS AREA.
ELSEWHERE...SHOWERS AND POSSIBLY A THUNDERSTORM MAY AFFECT S FL AND
THE KEYS. SEVERE WEATHER IS NOT ANTICIPATED.
..GOSS.. 10/15/2011
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