Area Forecast Discussion
Issued by NWS Sacramento, CA

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FXUS66 KSTO 281139
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
339 AM PST Wed Jan 28 2015

.Synopsis...
Partly to mostly cloudy skies the next few days. Another weak
system may bring isolated showers/flurries near the Sierra crest
Thursday. A ridge of high pressure builds over the area this
weekend with night and morning valley fog possible.

&&

.Discussion...
Partly cloudy skies across interior NorCal early this morning in
the wake of yesterday`s weak system. Some patches of fog have
managed to develop across portions of the Central Valley and may
see more fog development toward sunrise, especially along the
eastern edge of the valley. Temperatures remain quite mild and are
mostly in the 40s and 50s except some 30s in the mountain valleys.

Dry conditions are expected across the region today, then another
weak system will move up from the southwest on Thursday. It`s not
looking like the valley will see any showers with this one,
however, the northern Sierra south of Lake Tahoe may see a few
light showers. System tracks east Friday with high pressure
building back over NorCal heading into the weekend. Valley high
temperatures will be in the upper 50s to around 70, warmest at the
north end of the Sacramento Valley.

&&

.Extended Discussion (Sunday through Wednesday)...
Ridge flattens Sunday into Monday with the potential for some
disturbances moving through. This will bring a threat of
precipitation to interior Northern California, especially on
Monday. Although, no significant precipitation is expected. High
pressure ridge builds over the Eastern Pacific Tuesday then moves
over the west coast on Wednesday bringing drier weather. Fog and
low clouds are expected in the morning in the Valley.

&&

.Aviation...
MVFR/IFR visibilities with local LIFR conditions due to fog until
around 19z in the Valley then VFR with areas of MVFR conditions
expected. Elsewhere, VFR conditions with periods of mid and high
clouds moving over the area. Light and variable winds continue.

&&

.STO Watches/Warnings/Advisories...None.

&&

$$



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