Area Forecast Discussion
Issued by NWS Sacramento, CA

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FXUS66 KSTO 271137
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
337 AM PST Mon Jan 27 2020

.Synopsis...
Precipitation chances continue through Tuesday, mainly for areas
north of Sacramento. Otherwise dry conditions expected this week
for most areas. Well above average temperatures after mid-week.

&&

.Discussion...
Satellite imagery indicates partly to mostly cloudy skies north of
I-80 with mostly clear conditions to the south. Radar indicated
another batch of light precipitation moving inland across
northwest California which will move across the far northern
portion of the state this morning. Current temperatures are rather
mild, ranging from the 30s in the mountains to the mid 40s to mid
50s across the Central Valley.

The considerable cloudiness along with southerly winds of 5-10 mph
may preclude much fog development in the Sacramento Valley early
this morning. Conditions for fog are more favorable to the south
where skies are mostly clear and winds light. May see some patches
of fog in the Stockton and Modesto areas around sunrise.

Another system will move into the region late tonight and Tuesday
and will weaken as it moves inland. QPF will be very limited (much
less than Sunday`s) and little impact is expected.

High pressure will build over the region beginning mid-week and
will maintain dry weather through the remainder of the week with
above average temperatures. Northerly surface flow may inhibit
much fog potential.

&&

.EXTENDED DISCUSSION (Friday THROUGH Monday)...
Strong upper ridging late in the week will bring dry weather with
above normal temperatures. High temperatures in the Central
Valley projected to be upwards of 10 degrees above normal. Night
and morning valley fog will continue to be possible. Upper ridging
progresses over the weekend and short wave trough moves through
Interior NorCal Sunday. Pacific storm looks fairly weak with some
light precipitation possible over the mountains and mainly
northern portions of the Sacramento Valley. High amplitude ridging
builds inland Monday for drier weather and breezy northerly wind.

&&

.AVIATION...
Lcl MVFR/IFR conds poss ovr Shasta mtns in shwrs tda. Lcl
MVFR/IFR and isold IFR conds poss in BR/FG in Sac Vly S of KOVE,
Delta area, and Nrn San Joaquin Vly til 18z. VFR conds elsw. Aft
09z Tue, areas MVFR and lcl IFR poss in pcpn. Sfc wnds genly blo
12 kts nxt 24 hrs.

&&

.STO WATCHES/WARNINGS/ADVISORIES...None.

&&

$$



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