[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 230031
SWODY1
SPC AC 230029

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
0629 PM CST THU DEC 22 2005

VALID 230100Z - 231200Z

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 65 ENE BLI 35 WNW EAT
40 ENE DLS 45 S RDM 45 WNW 4BK.

...NO SVR TSTM AREAS FORECAST...

A STRONG SHORTWAVE TROUGH AND ASSOCIATED SPEED MAX WERE MOVING ONTO
THE ORE/WA COAST THIS EVENING. STRONG ASCENT AHEAD OF THIS SYSTEM
STEEPENED LAPSE RATES THROUGHOUT THE DAY...RESULTING IN FAVORABLE
VERTICAL PROFILES FOR CONVECTION AND LIGHTNING. THIS WAS ESPECIALLY
NOTED IN NWRN WA WHERE THE 00Z SOUNDING AT QUILLAYUTE...WA SHOWED
SFC-500 MB LAPSE RATES NEAR 7C/KM... RESULTING IN MLCAPES AROUND 300
J/KG. CONVECTION WITH OCCASIONAL LIGHTNING STRIKES SHOULD CONTINUE
UNTIL 03Z-05Z. AFTER THAT TIME...AS THE TROUGH PUSHES EWD INTO
ID...SUBSIDENCE BEHIND THE SYSTEM SHOULD END THE THUNDER THREAT.

THE REST OF THE COUNTRY IS EXPECTED TO BE THUNDER FREE DUE TO THE
PRESENCE OF A DRY AND STABLE AIR MASS.

..IMY.. 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