SWOD48
SPC AC 170943
DAY 4-8 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0343 AM CST SAT NOV 17 2007
VALID 201200Z - 251200Z
..DISCUSSION...
MEDIUM RANGE MODELS -- SPECIFICALLY THE GFS AND ECMWF -- IN FAIRLY
GOOD AGREEMENT ON THE LARGE SCALE THROUGH ROUGHLY DAY 6...WITH A
LARGE TROUGH FORECAST TO MOVE EWD OUT OF THE ROCKIES AND EXPAND TO
COVER MUCH OF THE CONUS WITH TIME. LATE IN THE PERIOD...MODEL
DIFFERENCES BECOME MORE PRONOUNCED -- AS A SHORTER-WAVELENGTH TROUGH
MOVES SWD OUT OF CANADA ON THE WRN FRINGE OF THE LARGER-SCALE
CYCLONIC CIRCULATION.
LIMITED SEVERE POTENTIAL APPEARS TO EXIST ACROSS THE GULF COAST
REGION -- SPREADING SLOWLY EWD FROM ERN PORTIONS OF TX DAY 4 /TUE.
NOV. 20/ TO FL DAYS 6-7 -- ALONG THE SRN EXTENT OF A STRONG COLD
FRONT FORECAST TO SWEEP EWD/SEWD ACROSS THE ERN 2/3 OF THE CONUS
THROUGH THIS TIME FRAME. EXTENT OF THREAT SHOULD REMAIN LIMITED
AREALLY...DUE TO AN OVERALL LACK OF INSTABILITY. THUS WILL NOT
INTRODUCE A THREAT AREA ATTM.
.GOSS.. 11/17/2007
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@PO.UIUC.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.
No comments:
Post a Comment