Area Forecast Discussion
Issued by NWS Sacramento, CA
FXUS66 KSTO 231711
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
911 AM PST Sun Nov 23 2014
High pressure over the Eastern Pacific Ocean will begin to strengthen
today and then move into the West Coast Monday and Tuesday. Mild
weather expected for much of the week with above normal temperatures.
Mid to high level clouds are spilling over a flat ridge of high
pressure. A few sprinkles may be possible in the mountains this
morning from mid level clouds. The clouds are expected to start to
thin during the afternoon for most areas.
High pressure ridge will amplify Monday through Wednesday and
temperatures will warm a little each day through mid week. Some
high clouds are expected to drift through the region the next
several days. Some patches of fog mainly south of Marysville and
in some mountain valleys may occur each of the next couple of
mornings but overall the northerly dry flow should help to
minimize the amount of fog each morning. The best chance of fog
will be in the San Joaquin valley.
.Extended Discussion (Thursday through Sunday)
Upper ridge forecast to flatten over NorCal late in the week as
flow begins to break under the Gulf of Alaska blocking high. Still
some uncertainties on the timing of the onset of precip as the
initial system for later Friday into Saturday is forecast to be
rather weak as it moves into the mean ridge position. Another
weak system is forecast for Sunday with warm advection expected to
keep snow levels moderately high.
Northerly winds developing through the Central Valley as high
pressure rebuilds. General VFR conditions expected the next 24
hours with SCT-BKN mid and high clouds. Areas of MVFR conditions
redevelop in the Central Valley from near KMYV southward after