Area Forecast Discussion
Issued by NWS Sacramento, CA

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FXUS66 KSTO 191052

Area Forecast Discussion
National Weather Service Sacramento CA
352 AM PDT Mon Mar 19 2018

Dry weather continues today into Monday with milder temperatures.
Wet weather returns Tuesday and continues into the weekend.


Mostly clear skies across interior NorCal early this morning as
the back edge of an area of high clouds moves east. Temperatures
are milder and range from the teens in the mountain valleys to the
upper 30s to mid 40s across the Central Valley.

Dry weather continues today into early Tuesday under ridging ahead
of the upstream low offshore. Plenty of sunshine along with a
milder airmass will result in warmer temperatures across the
region today with milder portions of the Central Valley likely to
approach the 70 degree mark.

The next weather system moves into the region on Tuesday, though
increasing clouds and warm-advection may result in some sprinkles
as early as late tonight. Atmospheric river initially aimed toward
central and SoCal, so mainly light precipitation expected along
with high snow levels.

Heavier precipitation forecast to begin Wednesday night and
continue Thursday as deeper moisture moves north into NorCal ahead
of the approaching cold front and upper trough. Snow levels will
initially be rather high, 6500-7500 feet, but will tumble to below
4000 feet behind the front by later Thursday. Periods of moderate
to heavy precipitation will be possible, particularly over the
mountains. Gusty winds are also possible on Wednesday across the


Large upper low off the PacNW Coast will send embedded vort max
across Interior NorCal Friday keeping showers in the forecast.
Main upper low then digs across northern portions of CA Saturday,
continuing unsettled weather. Drier NWly flow sets up across the
CWA Sunday into Monday. Temperatures warm gradually through the
extended forecast period approaching slightly below normal by


Upr trof movs thru this mrng then upr rdg blds inld thru tngt.
VFR conds ovr Intr NorCal nxt 24 hrs with sfc wnds blo 12 kts.




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