[SWODY2] SWODY2

[Severe Weather Outlook - Day 2]

ACUS02 KWNS 191713
SWODY2
SPC AC 191712

DAY 2 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1112 AM CST MON DEC 19 2005

VALID 201200Z - 211200Z

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 40 NW AST 40 W PDX 10
SSW EUG 25 NW MFR 30 WSW MHS 50 W RBL 50 W UKI.

...NO SVR TSTM AREAS FORECAST...

...SYNOPSIS...
SECONDARY MID/UPPER LEVEL SHORTWAVE/ASSOCIATED VORTICITY MAX IS
FORECAST TO MOVE SEWD WITHIN THE SRN STREAM FROM THE SRN PARTS OF
THE CENTRAL HIGH PLAINS ESEWD INTO THE LOWER MS VALLEY.  THIS WILL
PHASE WITH BROAD TROUGH OVER THE GREAT LAKES TO CREATE LARGE ERN
U.S. TROUGH BY 21/12Z. MEANWHILE...CLOSED LOW AROUND 36N 142W WILL
WEAKEN AND LIFT NEWD TOWARDS THE PACIFIC NORTHWEST AS HIGH AMPLITUDE
RIDGE TRANSLATES SLOWLY EWD OVER THE INTERMOUNTAIN REGION.  LARGE
SURFACE RIDGING WILL CONTINUE TO COVER THE CENTRAL PLAINS INTO THE
EAST CENTRAL U.S. AND SOUTHEASTERN STATES INHIBITING SUFFICIENT LOW
LEVEL MOISTURE/INSTABILITY TO CONSIDER SEVERE POTENTIAL ACROSS THE
CONUS. 

...COASTAL AREAS OF OREGON INTO NWRN CA...

MODELS INDICATE MODERATE/STRONG HORIZONTAL/VERTICAL SHEAR OVER THIS
AREA WITH WEAKENING TROUGH AS IT APPROACHES THE NWRN U.S. LATE
TUESDAY MORNING THRU TUESDAY EVENING.  MID LEVEL TEMPERATURES ARE
FORECAST AROUND -18C TO -20C...BARELY ENOUGH TO SUPPORT MID LEVEL
LAPSE RATES NEAR 7C/KM DURING THE AFTERNOON/EARLY EVENING.  THUS...
ENOUGH MID LEVEL INSTABILITY WILL BE PRESENT FOR ISOLATED
THUNDERSTORMS ACROSS THIS AREA.

..MCCARTHY.. 12/19/2005

...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