[SWODY2] SWODY2

[Severe Weather Outlook - Day 2]

ACUS02 KWNS 090620
SWODY2
SPC AC 090618

DAY 2 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1218 AM CST SAT DEC 09 2006

VALID 101200Z - 111200Z

...NO SVR TSTM AREAS FORECAST...

AN UPPER-LEVEL TROUGH IS FORECAST TO BE IN CALIFORNIA AT THE
BEGINNING OF THE PERIOD. THIS FEATURE WILL MOVE EWD INTO THE
INTERMOUNTAIN WEST DURING THE DAY ON SUNDAY. STEEP LAPSE RATES
ASSOCIATED WITH THE UPPER-TROUGH AND SFC HEATING MAY HELP ISOLATED
THUNDERSTORMS TO INITIATE IN THE FOUR CORNERS REGION SUNDAY
AFTERNOON.

BACK FURTHER WEST...LARGE-SCALE ASCENT MAY PERSIST ALONG THE WEST
COAST IN THE WAKE OF THE EXITING UPPER-TROUGH AS A SECONDARY THROUGH
TAKES ITS PLACE. IN ADDITION...LIFT MAY BE ENHANCED AS THE ENTRANCE
REGION OF THE MID-LEVEL JET MOVES ACROSS SUNDAY AFTERNOON. THIS
ALONG WITH ONSHORE FLOW AND COLD TEMPS ALOFT MAY ALLOW ISOLATED
THUNDERSTORMS TO DEVELOP ALONG THE COASTS OF NRN CA AND ORE MAINLY
SUNDAY MORNING AND AFTERNOON.

HOWEVER...NO SEVERE WEATHER THREAT IS EXPECTED TO DEVELOP ACROSS THE
CONUS SUNDAY OR SUNDAY NIGHT.

..BROYLES.. 12/09/2006