SWOD48
SPC AC 030914
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0314 AM CST THU DEC 03 2009
VALID 061200Z - 111200Z
...DISCUSSION...
...SUN/MON...
THREAT FOR CONVECTION AND SEVERE STORMS WILL BE QUITE LOW AS BROAD
UPPER TROUGH OVER THE WRN/CENTRAL CONUS MAINTAINS SURFACE HIGH
PRESSURE...RESULTING IN A COLD AND STABLE AIR MASS.
..TUE...
LATEST MEDIUM RANGE MODEL RUNS ARE IN REASONABLE AGREEMENT OF UPPER
LOW IN THE PACIFIC NW THIS WEEKEND...BECOMING ABSORBED INTO THE NWLY
FLOW ALOFT...AND AMPLIFYING THE LONGWAVE TROUGH OVER THE SOUTH
CENTRAL UNITED STATES. THIS FEATURE SHOULD ALSO RESULT IN DEEPENING
CYCLOGENESIS ALONG A COLD FRONT...AS IT SHIFTS EWD FROM THE SRN
PLAINS INTO THE TN VALLEY. GULF MOISTURE RETURN AND EVEN
THUNDERSTORMS ARE POSSIBLE ACROSS THE LOWER MS VALLEY. HOWEVER...TOO
MANY DIFFERENCES EXIST ON THE MREF MEMBERS AND OTHER MODELS
REGARDING THE STRENGTH...SPEED AND INTENSITY OF UPPER TROUGH/SURFACE
LOW TO CONSIDER AN OUTLOOK AREA.
...WED/THU...
A COLD FRONT WILL MOVE THROUGH A STABLE ENVIRONMENT ACROSS THE ERN
THIRD OF THE COUNTRY...WITH HIGH PRESSURE THEN BUILDING EWD FROM THE
PLAINS.
..IMY.. 12/03/2009
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.
No comments:
Post a Comment