[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 211251
SWODY1
SPC AC 211250

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
0650 AM CST WED DEC 21 2005

VALID 211300Z - 221200Z

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 80 NNW UIL 20 NNW HQM
25 E ONP 35 NE ACV 45 E ACV 10 SE MHS 45 NE RBL 10 WNW TVL 55 S TVL
35 WSW MER 30 W MRY.

...NO SVR TSTM AREAS FORECAST...

...CA/ORE/WA AREA...
A MID LEVEL SHORTWAVE TROUGH NEAR 41 N AND 135 W WILL MOVE AND REACH
THE NW CA/ORE/WA COASTS LATER THIS AFTERNOON/EVENING.  OCEANIC
LIGHTNING DATA SHOW A FEW SMALL THUNDERSTORM CLUSTERS IN ASSOCIATION
WITH THE MID LEVEL THERMAL TROUGH/WAVE AXIS...AND THIS AREA OF
CONVECTION SHOULD SPREAD INLAND LATER THIS AFTERNOON.  THE MID LEVEL
WAVE WILL LIKELY LOSE AMPLITUDE TONIGHT WHILE MOVING THROUGH THE
LARGER SCALE RIDGE AXIS OVER THE ROCKIES...AND ANY THUNDERSTORM
THREAT WILL LIKELY BE CONFINED TO THE NARROW COASTAL STRIP W OF THE
CASCADES AND COAST RANGES ACROSS ORE/WA.

FARTHER S...ISOLATED THUNDERSTORMS HAVE CONTINUED OVERNIGHT ALONG AN
AXIS FROM ROUGHLY SFO TO TVL.  SATELLITE IMAGERY CONFIRMS THAT THIS
AREA REMAINS WITHIN THE SUBTROPICAL MOISTURE PLUME...AND THE 12Z OAK
SOUNDING SHOWS 200-300 MUCAPE BASED NEAR 800 MB.  ELEVATED
CONVECTION SHOULD CONTINUE TODAY FROM THE COAST INLAND TO THE NRN
SIERRA NEVADA...THOUGH THUNDERSTORM COVERAGE WILL BE RATHER SPARSE.

..THOMPSON.. 12/21/2005

...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