Area Forecast Discussion
Issued by NWS Sacramento, CA
FXUS66 KSTO 102133
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
233 PM PDT SAT OCT 10 2015
Mostly clear with above normal temperatures through mid-week.
High clouds and locally breezy conditions over the higher
elevations of the Sierra this weekend. End of next week could see
more clouds and mountain showers as a weather system moves up from
Clear skies across the interior of NorCal this afternoon except
for some high clouds beginning to spread across the far northern
portion of the state associated with a weather system moving
through the PacNW.
It`s another warm fall day across the region with temperatures in
the 80s and lower 90s across the Central Valley and foothills with
70s in the mountains. These readings are pretty similar to
Friday`s except for locales influenced by the Delta Breeze which
are a little cooler.
Warm and dry weather continues through early next week as high
pressure rebuilds and westerly flow decreases. Temperatures will
rise slightly each day through Tuesday.
.Extended Discussion (Wednesday through Saturday)...
Dry and warm weather look to continue through at least Wednesday.
By Wednesday night or Thursday, a closed upper low off the Baja
coast begins to approach California. The GFS phases this system in
with an approaching upper trough, bringing scattered showers and
possibly some thunderstorms mainly across the NorCal mountains.
The ECMWF takes a more southerly trajectory across SoCal, leaving
our forecast area dry. We`ve maintained "slight chance" wording
mainly across the mountains to account for this uncertainty.
Dry weather is expected next Friday, with potentially a stronger
wave setting up for next weekend. The ECMWF has backed off a bit
with its latest run, but the GFS maintains at least some
precipitation moving through the forecast area. For now, we`ve
increased the possibility of seeing at least some precipitation
across the forecast area. Dang
VFR conditions the next 24 hours. South to southwest wind gusts
up to 20 kt across the Valley (up to 40 kt over the Sierra) will
decrease after about 06Z Sunday. Dang