[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 091301
SWODY1
SPC AC 091259

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
0659 AM CST SAT DEC 09 2006

VALID 091300Z - 101200Z

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
THE LARGE SCALE PATTERN IS BECOMING MORE ZONAL/PROGRESSIVE WITH
TIME...THOUGH A RELATIVELY COLD/DRY CONTINENTAL AIR MASS IN THE LOW
LEVELS WILL INHIBIT DEEP CONVECTION OVER THE MAJORITY OF THE CONUS. 
A WEAKENING SRN STREAM WAVE OVER NE MEXICO WILL MOVE OVER S TX...BUT
THUNDERSTORMS ARE NOT EXPECTED GIVEN ONLY MINIMAL MID LEVEL
INSTABILITY IN ASSOCIATION WITH THIS WAVE.  A MORE SUBSTANTIAL
THREAT FOR AT LEAST ISOLATED THUNDERSTORMS IS EXPECTED ACROSS THE
NRN/CENTRAL CA COAST AND CENTRAL VALLEYS AS A SHORTWAVE TROUGH
CURRENTLY LOCATED NEAR 35 N AND 130 W MOVES EWD TO THE CA COAST BY
00Z.  SATELLITE IMAGERY AND OCEANIC LIGHTNING DATA SHOW EMBEDDED
CONVECTION AND ISOLATED THUNDERSTORMS WITHIN THE INITIAL BAROCLINIC
BAND AND NEAR THE COLD CORE.  THESE AREAS OF CONVECTION WILL LIKELY
PERSIST AND SPREAD INLAND THIS EVENING INTO TONIGHT

..THOMPSON.. 12/09/2006