ZCZC SPCSWODY1 ALL
ACUS01 KWNS 120044
SPC AC 120044

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
0644 PM CST THU DEC 11 2003

VALID 120100Z - 121200Z.

...NO TSTM AREAS FORECAST...

...SYNOPSIS...
AS ONE STRONG SYSTEM BEGINS TO LIFT AWAY FROM THE NORTHEAST U.S.
TOWARD ERN CANADA...THE NEXT IMPULSE OF CONSEQUENCE WAS DIGGING AND
DEEPENING OVER THE LOWER COLORADO RIVER VALLEY THIS EVENING. WHILE
NEITHER ONE OF THESE DISTURBANCES HAS MUCH IN THE WAY OF CONVECTIVE
INSTABILITY TO WORK WITH...STRONG ASCENT AND COMPACT MID LEVEL COLD
POOL WITH THE SWRN U.S. SHORT WAVE COULD STILL RESULT IN ISOLD
POCKETS OF CONVECTION OVER PARTS OF SRN CA AND AZ TONIGHT.
HOWEVER...AREAL COVERAGE AND DURATION OF THIS ACTIVITY DOES NOT
APPEAR TO WARRANT A TSTM AREA.

A NARROW AXIS OF LOW LEVEL RETURN FLOW AND STRENGTHENING ISENTROPIC
UPGLIDE WILL DEVELOP OVER THE WRN GULF/SOUTHEAST TX TOWARD DAYBREAK
AS LOW LEVEL SLY FLOW PERSISTS AHEAD OF THE FOUR CORNERS/SWRN
TROUGH. EVENING SOUNDING FROM CRP SHOWS A STRONG CAPPING INVERSION
AROUND 800MB WILL HAVE TO BE OVERCOME BEFORE DEEP CONVECTION CAN
OCCUR IN THIS AREA. THEREFORE TSTM CHANCES ACROSS THIS REGION APPEAR
LIMITED UNTIL AFTER FRIDAY MORNING.

..CARBIN.. 12/12/2003

...NOTICE...
FOR USERS DECODING THE POINTS PARAGRAPH HEREIN...LATITUDE AND
LONGITUDE POINTS FOR THE CATEGORICAL AND PROBABILISTIC OUTLOOK
GRAPHICS ALSO ARE LOCATED IN A SEPARATE PRODUCT UNDER THE WMO
HEADINGS WUUS01 PTSDY1...WUUS02 PTSDY2...AND WUUS03 PTSDY3.  THE
INCLUSION OF POINTS IN THIS PRODUCT WILL EVENTUALLY BE DISCONTINUED.

$$