SWODY3
SPC AC 100721
DAY 3 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0221 AM CDT MON SEP 10 2007
VALID 121200Z - 131200Z
..NO SVR TSTM AREAS FORECAST...
..SYNOPSIS...
COLD FRONT IS FORECAST TO LINGER/DRIFT SWD ACROSS THE SOUTHEAST AND
GULF COAST STATES THIS PERIOD...AS UPPER LOW/SHORT-WAVE TROUGH
RETREATS INTO THE CANADIAN MARITIMES AND A SECOND FEATURE DROPS SWD
OUT OF WRN CANADA INTO THE NWRN AND N CENTRAL CONUS.
THIS SECOND FEATURE WILL BE ACCOMPANIED BY A SECOND SURFACE COLD
FRONT...WHICH IS ALSO EXPECTED TO BEGIN SURGING SWD ACROSS THE NRN
ROCKIES/NRN PLAINS THROUGH THE END OF THE PERIOD.
WITH HIGHER THETA-E AIRMASS FORECAST TO REMAIN S OF THE INITIAL
BOUNDARY...IT APPEARS THAT INSTABILITY WILL BE INSUFFICIENT FOR
SEVERE WEATHER AHEAD OF THE SECOND FRONT. MEANWHILE...THE INITIAL
FRONT OVER THE SRN AND ERN CONUS WILL REMAIN S OF THE STRONGER FLOW
ALOFT...AND WITH WEAK LAPSE RATES FORECAST ACROSS THE WARM
SECTOR...IT APPEARS ATTM THAT INSTABILITY SHOULD REMAIN GENERALLY
INSUFFICIENT FOR AN APPRECIABLE PULSE SEVERE THREAT. MODELS HINT
THAT A SLIGHTLY-MORE FAVORABLE JUXTAPOSITION OF INSTABILITY AND
SHEAR COULD OCCUR OVER THE CAROLINAS -- PERHAPS SUPPORTING A
STRONGER STORM OR TWO INVOF THE FRONT...BUT ATTM THREAT APPEARS
INSUFFICIENT TO WARRANT INCLUSION OF A THREAT AREA.
.GOSS.. 09/10/2007
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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 chris@lib.siu.edu.
No comments:
Post a Comment