SWODY1
SPC AC 081901
DAY 1 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0101 PM CST THU NOV 08 2007
VALID 082000Z - 091200Z
..NO TSTM AREAS FORECAST...
..PACIFIC NORTHWEST...
DOWNSTREAM OF A VERY STRONG...ZONAL PACIFIC JET STREAK...A
SIGNIFICANT SHORT WAVE TROUGH AND ATTENDANT SURFACE CYCLONE CONTINUE
TO LIFT TOWARD BRITISH COLUMBIA/PACIFIC NORTHWEST COASTAL AREAS.
THE SYSTEM IS PROGGED TO MIGRATE INLAND LATE TONIGHT INTO EARLY
FRIDAY...WHEN STRENGTHENING LOW-LEVEL FLOW WITH AN INCREASING
ONSHORE COMPONENT IS EXPECTED ACROSS THE WESTERN SLOPES OF THE
CASCADES. WEAK FRONTAL ZONE/ASSOCIATED MID-LEVEL THERMAL TROUGH MAY
BE ACCOMPANIED BY A CONVECTIVE PRECIPITATION BAND ACROSS THIS REGION
DURING THE 09/06-12Z TIME FRAME. BUT...FORECAST SOUNDINGS CONTINUE
TO INDICATE THAT POTENTIAL FOR CHARGE SEPARATION/CLOUD
ELECTRIFICATION IS LOW. AND...THE RISK FOR THUNDERSTORMS APPEARS
NEGLIGIBLE.
.KERR.. 11/08/2007
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