SWOD48
SPC AC 190847
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0347 AM CDT TUE AUG 19 2008
VALID 221200Z - 271200Z
...DISCUSSION...
MODELS CONTINUE EARLIER TRENDS REGARDING STRONG SPEED MAX/SHORTWAVE
TROUGH AND IT/S MOVEMENT ALONG THE U.S./CANADIAN BORDER INTO THE
UPPER GREAT LAKES BY SATURDAY. BOTH THE GFS AND ECMWF SUGGEST SRN
PLAINS LOW WILL EJECT NNEWD AHEAD OF THIS FEATURE WHICH MAY LIMIT
BOUNDARY LAYER HEATING EXCEPT IMMEDIATELY AHEAD OF COLD FRONT.
FORECAST THERMODYNAMIC STRUCTURES SUGGEST AIRMASS MAY NOT BE THAT
UNSTABLE WITH CAPPING A POSSIBLE ISSUE THROUGH LATE AFTERNOON
FRIDAY. GIVEN THE UNCERTAINTY REGARDING INSTABILITY...AND TIMING OF
CONVECTION...WILL NOT ISSUE AN OUTLOOK AT THIS TIME.
HOWEVER...THERE APPEARS TO BE AN INCREASING PROBABILITY FOR
ORGANIZED THUNDERSTORMS ALONG ADVANCING COLD FRONT FROM WI...SWWD
INTO THE CNTRL PLAINS BY SATURDAY MORNING.
..DARROW.. 08/19/2008
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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