[SWODY1] SWODY1

[SWODY1 at goshenarc.org]

ACUS01 KWNS 130506
SWODY1
SPC AC 130504

DAY 1 CONVECTIVE OUTLOOK  
NWS STORM PREDICTION CENTER NORMAN OK
1104 PM CST SUN DEC 12 2004

VALID 131200Z - 141200Z.

...NO TSTM AREAS FORECAST...

...SYNOPSIS AND FORECAST...
AMPLIFICATION OF LONGWAVE TROUGH IS FORECAST ACROSS THE ERN CONUS
TODAY/TONIGHT AS UPPER-LEVEL LOW OVER THE GREAT LAKES LIFTS NEWD
INTO THE GULF OF ST. LAWRENCE AND HEIGHTS REBOUND OVER THE N-CNTRL
CONUS. IN THE W...NEXT UPSTREAM SYSTEM WILL MOVE ONTO THE PACIFIC NW
COAST. IN THE LOW-LEVELS...PRIMARY SURFACE LOW WILL DEVELOP NEWD
ALONG THE ST. LAWRENCE VALLEY WHILE EXPANSIVE HIGH BUILDS SWD
THROUGH THE PLAINS.

AIR MASS ACROSS MUCH OF THE CONUS WILL REMAIN DRY AND STABLE IN
ASSOCIATION WITH DOMINANT SURFACE HIGH. EXCEPTION WILL BE IN THE LEE
OF LAKES ERIE AND ONTARIO...AS WELL AS ALONG THE WA COAST WHERE WEAK
INSTABILITY WILL SUPPORT THE POTENTIAL FOR AN ISOLATED LIGHTNING
STRIKE OR TWO. OVERALL THREAT APPEARS TOO LIMITED TO WARRANT
CATEGORICAL THUNDER AREAS ATTM.

..MEAD.. 12/13/2004

...NOTICE...
FOR USERS DECODING THE POINTS PARAGRAPH HEREIN...LATITUDE AND
LONGITUDE POINTS FOR THE CATEGORICAL AND PROBABILISTIC OUTLOOK
GRAPHICS ALSO ARE LOCATED IN A SEPARATE PRODUCT UNDER THE WMO
HEADINGS WUUS01 PTSDY1...WUUS02 PTSDY2...AND WUUS03 PTSDY3.  THE
INCLUSION OF POINTS IN THIS PRODUCT WILL EVENTUALLY BE DISCONTINUED.