[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 251941
SWODY1
SPC AC 251939

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
0239 PM CDT TUE OCT 25 2005

VALID 252000Z - 261200Z

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 20 ESE TPH 20 SSW BAM
60 SSW TWF 30 SSW MLD 20 ESE EVW 25 NW MTJ 40 NE DRO 35 NNW 4SL 30 S
GUP 15 SSW PRC 45 NW EED 30 W DRA 20 ESE TPH.

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 45 N 63S 35 WNW 3TH
20 N MSO 45 SSW 3DU 20 S SMN 15 NNE SUN 45 WSW SUN 30 SW BOI 40 SSW
BKE 20 SW PDT 45 ENE DLS 35 W DLS 25 NNW EUG 55 SW ONP.

...NO SVR TSTM AREAS FORECAST...

...GREAT BASIN/FOUR CORNERS...
COMPACT MID/UPPER LEVEL IMPULSE AND ASSOCIATED DPVA WILL CONTINUE TO
PRODUCE STRONG ASCENT FROM SRN NV ACROSS SRN UT/NRN AZ THROUGH THE
EVENING. RESULTING TSTMS WILL OCCUR WITHIN MARGINALLY UNSTABLE
AIRMASS CHARACTERIZED BY LIMITED MOISTURE BUT STEEP LAPSE RATES.
HEATING AHEAD OF THE STRONG IMPULSE...ACROSS AZ/UT BORDER AREA...HAS
PRODUCED DEEPLY MIXED BOUNDARY LAYER WHERE DCAPE VALUES OF 300-800
J/KG COULD SUPPORT GUSTY SURFACE WINDS BENEATH HIGH-BASED STORMS
THIS AFTERNOON AND EARLY EVENING.

...NORTHWEST...
LATEST SATELLITE IMAGERY CLEARLY DEPICTS COLD FRONT CLOUD BAND
APPROACHING THE COAST OF THE PACIFIC NORTHWEST. THIS ZONE OF LIFT IS
AHEAD OF A COLD CORE TROUGH WITH 500MB TEMPERATURES OF -25C TO -30C.
 IN ADDITION TO LARGE SCALE ASCENT ASSOCIATED WITH THE APPROACHING
UPPER TROUGH AND COLD FRONT...LOWERING STATIC STABILITY...MOIST
PROFILES...AND UPSLOPE FLOW WITHIN THE TROUGH AXIS WILL ALSO AID IN
THE DEVELOPMENT OF SCATTERED TSTMS ACROSS THE REGION THROUGH
TONIGHT.

..CARBIN.. 10/25/2005

...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.