SWODY2
SPC AC 150527
DAY 2 CONVECTIVE OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
1127 PM CST SAT FEB 14 2009
VALID 161200Z - 171200Z
...NO SVR TSTM AREAS FORECAST...
...CA...
SEVERAL IMPULSES WILL ROTATE THROUGH LARGE UPPER TROUGH OFF THE CA
COAST AS IT ADVANCES SLOWLY EWD. A STRONG UPPER JET IS FORECAST TO
MOVE THROUGH THE BASE OF THIS TROUGH AND INTO SRN CA MONDAY ALONG
WITH ATTENDANT COLD FRONT. PRECIPITATION SHOULD INCREASE EARLY
MONDAY ACROSS CNTRL AND NRN CA WITHIN ZONE OF PRE-FRONTAL ASCENT
ALONG WARM CONVEYOR BELT. THIS ZONE OF PRECIPITATION WILL SHIFT EAST
DURING THE DAY. IN WAKE OF THE FRONT...COLD AIR ALOFT AND STEEPER
MID LEVEL LAPSE RATES WILL SPREAD EWD THROUGH CNTRL AND NRN CA NORTH
OF UPPER JET AXIS. SCATTERED CONVECTION WILL LIKELY DEVELOP IN THIS
ENVIRONMENT ALONG WITH POSSIBILITY OF ISOLATED THUNDERSTORMS.
...ELSEWHERE...
SURFACE HIGH PRESSURE WILL BUILD SEWD THROUGH THE OH VALLEY AND SERN
U.S. IN WAKE OF SHORTWAVE TROUGH EXITING THE ERN SEABOARD. THIS WILL
RESULT IN NLY TRAJECTORIES OVER THE GULF AND STABLE CONDITIONS
INLAND. PARTIALLY MODIFIED GULF AIR WILL BEGIN RETURNING NWD THROUGH
S TX BETWEEN RETREATING SURFACE RIDGE AND LEE TROUGH LATE MONDAY
NIGHT. SHALLOW ELEVATED CONVECTION MAY DEVELOP IN THIS WARM
ADVECTION REGIME...BUT PRESENCE OF A CAP WILL LIMIT POTENTIAL FOR
THUNDERSTORMS.
..DIAL.. 02/15/2009
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
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