SWODY1
SPC AC 170551
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1251 AM CDT SUN OCT 17 2010
VALID 171200Z - 181200Z
...NO SVR TSTM AREAS FORECAST...
...SYNOPSIS...
LONG-WAVE TROUGH TO PERSIST ACROSS CANADA AND THE NORTHEAST CONUS
THIS PERIOD...WITH SOME WWD EXPANSION EXPECTED AS A SHORT-WAVE
TROUGH DIGS ESEWD OUT OF THE CANADIAN ROCKIES/NRN INTERMOUNTAIN
REGION AND ACROSS THE N CENTRAL CONUS. AN ASSOCIATED/REINFORCING
COLD FRONT IS PROGGED TO SHIFT QUICKLY SEWD ACROSS THE
NORTHEAST/MIDWEST REGION...WHILE LINGERING W-E ACROSS THE CENTRAL
PLAINS REGION THROUGH THE PERIOD.
MEANWHILE FARTHER W...THE UPPER TROUGH MOVING ACROSS THE ERN PACIFIC
TOWARD THE W COAST IS EXPECTED TO BECOME DETACHED FROM THE STRONGER
WLYS FARTHER N...AND THEN DRIFT SSWWD ALONG THE CA COAST AS A CLOSED
LOW THROUGH THE END OF THE PERIOD. LARGE SCALE ASCENT AND COOLING
ALOFT ACROSS CA AND THE GREAT BASIN ASSOCIATED WITH THIS SYSTEM
SUGGESTS THAT SHOWERS AND OCCASIONAL LIGHTNING STRIKES CAN BE
EXPECTED -- PERHAPS AS FAR NEWD AS WY/WRN CO.
LASTLY...A SMALL/WEAKENING FEATURE ALOFT MOVING INTO FAR W TX MAY
SUPPORT SHOWERS AND AN ISOLATED THUNDERSTORM ACROSS THIS REGION.
..GOSS/GRAMS.. 10/17/2010
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