[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 220458
SWODY1
SPC AC 220456

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1056 PM CST WED DEC 21 2005

VALID 221200Z - 231200Z

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 50 NNW UIL OLM PDX 35
ENE EUG MFR 55 SW EKA.

...NO SVR TSTM AREAS FORECAST...

ZONAL FLOW WILL BE PREVALENT ACROSS MOST OF THE CONUS THIS PERIOD...
AS A STRONG SHORTWAVE TROUGH MOVES NEWD OUT OF NERN PORTION OF THE
COUNTRY. A LONG WAVE TROUGH IS LOCATED OFF THE PACIFIC NW COAST AND
A STRONG SHORTWAVE TROUGH AND ASSOCIATED JET MAX ARE FORECAST TO
MOVE ONTO THE WA/ORE COAST LATE TODAY...AND THEN SHIFT RAPIDLY EWD
INTO THE NRN ROCKIES EARLY FRIDAY MORNING. LAPSE RATES FROM THE
SURFACE TO 500 MB WILL STEEPEN THROUGHOUT THE DAY AS THE STRONG
FORCING SPREADS ACROSS THE COASTAL AREAS OF WA/ORE...RESULTING IN
MUCAPES AOB 200 J/KG LATER TODAY. THIS INSTABILITY AND STRONG
ENVIRONMENTAL WINDS/UPSLOPE FLOW...ALONG WITH LARGE SCALE
LIFTING...SHOULD RESULT IN SOME CONVECTION BECOMING SUFFICIENTLY
DEEP FOR LIGHTNING.

..IMY.. 12/22/2005

...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