Area Forecast Discussion
Issued by NWS Sacramento, CA
FXUS66 KSTO 180450
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
850 PM PST Mon Nov 17 2014
Dry and seasonable weather will continue through midweek as high
pressure remains in control. A system will arrive on Wednesday,
bringing the next chance for precipitation. Additional systems will
move through the area through the end of the week into Saturday.
Temperatures are generally running several degrees cooler this
evening than last night. By morning temperatures should cool off
into the mid 30s to lower 40s for the valley to the teens and 20s
for the mountain valleys.
High clouds will drift over the interior ahead of the next system
that is out over the Pacific. The system looks like it will start
to move along the coastal range late Tuesday night and then push
inland during the day on Wednesday.
Another weak system will move through the interior on Thursday.
Snow levels look high with both of the systems but on the onset of
precipitation with this first system cold air trapped in the
mountains valleys may lower snow levels for a while before they
.Extended Discussion (Friday through Monday)
Medium range models bring next frontal system inland Friday but
differ with timing. Oper GFS is fastest and EC slowest with onset
of precip into Interior NorCal. All models spread precip over the
entire CWA Saturday as associated front drops south through the
forecast area. Precip turns showery behind the front Saturday
night into Sunday with models showing QPF mainly over the
mountains attm. Models suggest this storm will be the wettest of
the series this week with snow levels lowering to near 5000 feet
Drier weather expected Sunday into Monday with some northerly wind
as upper ridging approaches the West Coast and subsidence
increases over Interior NorCal.
NWly flow alf bcmg SWly Tue as nxt Pac fntl sys apchs. Mnly VFR
conds for Intr NorCal thru Tue. Isold IFR/LIFR in ST/FG poss in
Ern San Joaquin Vly Tues mrng.