[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 011235
SWODY1
SPC AC 011233

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
0633 AM CST THU DEC 01 2005

VALID 011300Z - 021200Z

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 50 NNW UIL 40 WNW PDX
15 WNW EUG 40 NE 4BK 20 SW CEC.

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 30 SW ACK 30 NW BOS
25 WNW AUG 35 NE BGR 15 SE EPM.

...NO SVR TSTM AREAS FORECAST...

...ORE/WA COASTS...
VIGOROUS MID/UPPER LOW LOCATED NEAR 49.5N/134.5W EARLY THIS MORNING
WILL MOVE STEADILY EWD ACROSS THE PAC NW TODAY AND TONIGHT.  SURFACE
COLD FRONT ASSOCIATED WITH THIS SYSTEM WILL MOVE/DEVELOP EWD INTO
THE NRN INTERMOUNTAIN REGION THIS AFTERNOON...PLACING COASTAL
REGIONS WITHIN FAVORED UPSLOPE/ONSHORE FLOW.  FORECAST SOUNDINGS FOR
THIS AREA INDICATE COOLING H7-H5 TEMPERATURES WILL BE SUFFICIENT FOR
SHALLOW SBCAPE FROM 100 TO 150 J/KG LATER TODAY AND TONIGHT. 
THEREFORE...A FEW THUNDERSTORMS CAN BE EXPECTED WITH INCREASING
SHALLOW CONVECTION ALONG AND WEST OF THE COASTAL RANGE.  DEGREE OF
CAPE AND LOW MELTING POTENTIAL SUGGEST SMALL HAIL MAY ALSO OCCUR
WITH THE STRONGER CORES.

...COASTAL NEW ENGLAND...
POTENT MID LEVEL SHORTWAVE TROUGH NOW OVERSPREADING THE MID MS RIVER
VALLEY WILL ACCELERATE NEWD AND BECOME INCREASINGLY NEGATIVELY
TILTED AS IT MOVES INTO THE NERN U.S. TONIGHT. IN
RESPONSE...SURFACE CYCLONE WILL DEEPEN JUST OFF THE COAST OF LONG
ISLAND/SERN NEW ENGLAND BY THE EARLY EVENING...WITH FURTHER
DEEPENING AS IT LIFTS NWD AND THEN NWWD ACROSS ME OVERNIGHT. 
COOLING MID LEVEL TEMPERATURES AND INTENSIFYING LARGE SCALE ASCENT
WILL AID IN STEEPENING LAPSE RATES DURING LATTER HALF OF THE PERIOD
OVER THIS REGION.  FORECAST SOUNDINGS INDICATE ELEVATED PARCELS WILL
BECOME WEAKLY UNSTABLE WITH MUCAPE AROUND 100 J/KG SUGGESTING A FEW
THUNDERSTORMS WILL BE EMBEDDED WITHIN BROADER PRECIPITATION SHIELD
EXPECTED TO OVERSPREAD THE REGION TONIGHT.

..EVANS.. 12/01/2005

...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