[SWODY1] SWODY1

[Severe Weather Outlook Day 1]

ACUS01 KWNS 180056
SWODY1
SPC AC 180055

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
0655 PM CST FRI FEB 17 2006

VALID 180100Z - 181200Z

...NO TSTM AREAS FORECAST...

AS INTENSE CYCLONE AND ASSOCIATED COLD FRONT MOVE OFF THE NORTHEAST
U.S. COAST...AN EXPANSIVE AREA OF ARTIC HIGH PRESSURE HAS BECOME
WELL ESTABLISHED FROM THE NRN ROCKIES TO THE GULF OF MEXICO. WHILE
ISOLATED LIGHTNING STRIKES ARE POSSIBLE WITHIN LAKE EFFECT SNOW
BANDS INTENSIFYING THROUGH TONIGHT...OVERALL PROBABILITY CURRENTLY
APPEARS TOO LOW TO SPECIFY AN OUTLOOK AREA DOWNWIND FROM ANY OF THE
GREAT LAKES.

IN THE WEST...A SHORT WAVE IMPULSE WAS ROTATING THROUGH LARGER SCALE
POSITIVE TILT UPPER TROUGH OVER NRN CA AND HAS CONTRIBUTED TO
NUMEROUS CONVECTIVE SHOWERS THIS AFTERNOON FROM THE BAY AREA NEWD
AND SEWD ACROSS THE INTERIOR VALLEYS TO THE SLOPES OF THE SIERRA. A
VERY FEW CG LIGHTNING STRIKES HAVE OCCURRED WITH THIS ACTIVITY. LOW
STATIC STABILITY AND MODEST BACKGROUND ASCENT WITHIN THE TROUGH
AXIS...AS WELL AS FAVORABLE OROGRAPHIC FORCING...WILL MAINTAIN A
CHANCE FOR ISOLATED TSTMS OVER CA THIS EVENING. HOWEVER...VERY WEAK
INSTABILITY AOB 100 J/KG...AND SPARSE TSTM COVERAGE OBSERVED SO
FAR...DO NOT SUPPORT CONTINUING A TSTM OUTLOOK ON THE WEST COAST.

..CARBIN.. 02/18/2006

...NOTICE...
THE STATION RELATIVE POINTS IN THIS PRODUCT WERE
DISCONTINUED ON 14 FEBRUARY 2006 AND ARE NOW AVAILABLE
IN THE FOLLOWING PRODUCTS:

   WMO HEADER:       AWIPS ID:
   WUUS01            PTSDY1
   WUUS02            PTSDY2
   WUUS03            PTSDY3

A SERVICE CHANGE NOTICE ...SCN05-39... PROVIDES DETAILS
ON THIS TRANSITION. FOR ADDITIONAL DETAILS SEE THE FOLLOWING
WEB ADDRESS USING LOWER CASE LETTERS:
WWW.NWS.NOAA.GOV/OM/NOTIF.HTM