[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 270457
SWODY1
SPC AC 270455

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1155 PM CDT WED OCT 26 2005

VALID 271200Z - 281200Z

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 20 NE BLI 25 WSW SEA
30 ESE AST 10 N ONP.

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 20 SSE 6R6 25 ENE FST
20 SSE HOB 50 ENE ROW 30 ENE CVS 40 NE PVW 55 SSE CDS 25 W SEP 10 SE
AUS 35 ENE CRP.

...NO SVR TSTM AREAS FORECAST...

...TX...

THE SHORTWAVE TROUGH NOW OVER ERN NM AND WRN TX WILL CONTINUE SEWD
THROUGH CNTRL TX THURSDAY. BOUNDARY LAYER MOISTURE IS LIMITED ACROSS
CNTRL AND WRN TX. HOWEVER...STEEP MID LEVEL LAPSE RATES AND ASCENT
ACCOMPANYING THIS FEATURE WILL MAINTAIN A THREAT FOR MOSTLY ELEVATED
THUNDERSTORMS...PRIMARILY ACROSS W CNTRL THROUGH CNTRL TX.

FARTHER SE ACROSS S TX...PARTIALLY MODIFIED GULF AIR WITH DEWPOINTS
IN THE LOW 60S HAS SPREAD INLAND. ISENTROPIC ASCENT WILL LIKELY
CONTRIBUTE TO AN INCREASE IN CONVECTION EARLY THURSDAY. INITIAL
ACTIVITY WILL BE SHALLOW WITH NO LIGHTNING. HOWEVER...MID LEVEL
LAPSE RATES SHOULD UNDERGO AT LEAST A MODEST INCREASE DURING THE DAY
AS THE SHORTWAVE TROUGH CONTINUES SEWD. THIS SUGGESTS A FEW
LIGHTNING STRIKES WILL BE POSSIBLE BY AFTERNOON.


...PACIFIC NW...

A SHORTWAVE TROUGH WILL MOVE ONSHORE LATE THURSDAY NIGHT ACCOMPANIED
BY A COLD FRONT. STEEPENING LAPSE RATES ASSOCIATED WITH THE MID
LEVEL THERMAL TROUGH WILL CONTRIBUTE TO MARGINAL INSTABILITY AND A
THREAT OF SCATTERED CONVECTION. ISOLATED LIGHTNING STRIKES COULD
OCCUR...MAINLY NEAR THE COAST LATE THURSDAY NIGHT.

..DIAL.. 10/27/2005

...NOTICE...
THE STATION RELATIVE POINTS IN THIS PRODUCT ARE NOW AVAILABLE
SEPARATELY UNDER THE WMO HEADINGS WUUS01 PTSDY1...
WUUS02 PTSDY2...WUUS03 PTSDY3.  THE INCLUSION OF POINTS
IN THIS DISCUSSION WILL BE DISCONTINUED AFTER THE 2005
CONVECTIVE SEASON.  A PUBLIC NOTIFICATION STATEMENT (PNS)
WILL PROVIDE DETAILS ON THE TRANSITION.