[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 281611
SWODY1
SPC AC 281609

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1109 AM CDT FRI OCT 28 2005

VALID 281630Z - 291200Z

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 25 ESE DUG 45 WNW SAD
35 SSE PRC 40 E LAS 50 N DRA 25 SE U31 15 SSE EKO 15 S BYI 10 WSW
LND 30 SW CPR 30 S LAR 20 NNW LVS 25 W CNM 65 W MRF.

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 55 ENE BLI 45 NNW DLS
35 WSW ONP.

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
SOUTHWEST SPEED MAX NOW ROUNDING THE BASE OF THE TROUGH WILL SPREAD
ACROSS THE FOUR CORNERS REGION BY THIS AFTN...WITH THE LARGE SCALE
FORCING FOCUSED ACROSS NRN AZ/SRN UT. ANOTHER UPPER LOW PRESSURE
SYSTEM AFFECTING THE PACIFIC NORTHWEST WILL WEAKEN AS IT MOVES INTO
WRN ALBERTA BY SATURDAY. LEE TROUGH WILL BE MAINTAINED ACROSS THE
PLAINS PARTIALLY IN RESPONSE TO UPSTREAM LARGE SCALE HEIGHT FALLS.
CHANCES FOR THUNDER TODAY WILL BE CONFINED TO THE ROCKY MTNS AND NW.


...CNTRL/SRN ROCKIES...
ELEVATED INSTABILITY /PER 500MB TEMPS NEAR -18C ON THE 12Z SLC
SOUNDING/ AND INCREASING LARGE SCALE ASCENT WITH UPSTREAM IMPULSE
MAY SUPPORT ISOLD LIGHTNING EARLY IN THE PERIOD. FORECAST SOUNDINGS
DO NOT APPEAR OVERLY FAVORABLE EVEN WITH MODEST SFC WARMING INTO THE
MID 50S.

...PACIFIC NORTHWEST...
LATEST LIGHTNING DATA INDICATE RECENT ACTIVITY NW OF SLE. MAINLY
ISOLD SHALLOW CONVECTION IS EXPECTED ACROSS THIS REGION. SFC COLD
FRONT WILL MOVE ACROSS THE CASCADES WITH THE LARGE SCALE FORCING
MOVING AWAY BY EARLY EVENING.

..TAYLOR/MCCARTHY.. 10/28/2005

...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.