[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 231952
SWODY1
SPC AC 231950

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
0150 PM CST FRI DEC 23 2005

VALID 232000Z - 241200Z

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 35 NNW BPT 15 S LFK
20 SSW GGG DEQ 25 WNW RUE 25 ESE FLP 20 SE JBR 20 WNW UOX 15 SW GWO
25 E ESF 15 NNW LCH 35 NNW BPT.

...NO SVR TSTM AREAS FORECAST...

...AR/E TX/LA...
A SHORTWAVE TROUGH CURRENTLY OVER THE HIGH PLAINS EVIDENT ON WATER
VAPOR IMAGERY WILL DIG SEWD AND CLOSE-OFF OVER THE OZARK PLATEAU
LATE TONIGHT. STRONG SLY FLOW AHEAD OF THE APPROACHING SYSTEM WILL
ADVECT LOW-LEVEL MOISTURE NWD ACROSS NE TX...LA AND AR WITH SFC
DEWPOINTS REACHING THE 50S F AHEAD OF A FAST-MOVING COLD FRONT.
THUNDERSTORMS APPEAR LIKELY TO INITIATE ALONG AND/OR JUST AHEAD OF
THE BOUNDARY LATE TONIGHT AS SUGGESTED BY BOTH THE NAM AND GFS
SOLUTIONS. THE MOST LIKELY POINT OF INITIATION SHOULD BE IN WRN AR
AND IN FAR EAST TX WHERE THE ENVIRONMENT SHOULD BE CHARACTERIZED BY
RAPIDLY INCREASING LARGE-SCALE ASCENT...INCREASING LOW-LEVEL
MOISTURE AND STRENGTHENING FRONTAL CONVERGENCE. SHORT LINE SEGMENTS
MAY DEVELOP AS THE COLD FRONT MOVES QUICKLY EWD ACROSS AR AND LA
JUST BEFORE DAYBREAK. IT APPEARS THAT ANY SEVERE THREAT WILL HOLD
OFF UNTIL AFTER DAYBREAK AS INSTABILITY INCREASES DUE TO SFC
HEATING.

ELSEWHERE...ISOLATED LIGHTNING STRIKES MAY OCCUR IN WRN WA AS A 90
KT MID-LEVEL JET APPROACHES THE COAST TONIGHT. HOWEVER...LIGHTNING
COVERAGE IS NOT EXPECTED TO EXCEED 10 PERCENT IN THIS REGION.
OTHERWISE...THUNDERSTORMS ARE NOT EXPECTED ACROSS THE REMAINDER OF
THE CONUS.

..BROYLES.. 12/23/2005

...NOTICE...
THE STATION RELATIVE POINTS IN THIS PRODUCT WILL BE
DISCONTINUED ON 14 FEBRUARY 2006 BUT WILL REMAIN AVAILABLE
IN THE FOLLOWING PRODUCTS:

   WMO HEADER:       AWIPS ID:
   WUUS01            PTSDY1
   WUUS02            PTSDY2
   WUUS03            PTSDY3

A SERVICE CHANGE NOTICE ...SCN05-39... PROVIDES DETAILS
ON THE TRANSITION. FOR ADDITIONAL DETAILS SEE THE FOLLOWING
WEB ADDRESS USING LOWER CASE LETTERS:
WWW.NWS.NOAA.GOV/OM/NOTIF.HTM