Area Forecast Discussion
Issued by NWS Sacramento, CA

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FXUS66 KSTO 251030
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
230 AM PST Tue Feb 25 2020

.Synopsis...
Dry weather with above average temperatures and locally breezy
northerly winds at times this week.

&&

.Discussion...
Other than a few high clouds passing overhead, skies are clear
across the region early this morning. The MFR-SAC surface pressure
gradient is up to 10 mbs and the RNO-SAC gradient is nearly 6 mbs.
Northerly wind gusts in the teens to mid 20s mph continue in the
Sacramento Valley, especially along the west side. Local gusts in
the mid 30s to mid 40s mph are present in the foothills and west
slopes of the northern Sierra Nevada. Current temperatures are
considerably milder across most of the area compared to 24 hours
ago and range from the lower to mid 20s in the mountain valleys to
the mid 40s to mid 50s (mid 60s locally along the western edge of
the valley) across the Central Valley.

High pressure will continue dry and mild weather this week. Winds
will subside somewhat later today in the valley, and by Wednesday
morning in the Sierra, as gradients relax. Highs will be running
10-20 degrees above average and some record highs will be possible
throughout the week.

&&

.EXTENDED DISCUSSION (Saturday THROUGH Tuesday)...
Upper troughing digs along the West Coast through the weekend
bringing cooler temperatures and locally breezy wind. Models
differ some depth and progression of wave but suggest some
potential for light precip over the Shasta county mountains
Saturday night and across mainly the eastern foothills and
mountains Sunday. Overall QPF looks to be light attm. Precip
chances diminish Sunday night into Monday as the trough digs into
the Desert SW and upstream ridging builds over NorCal. Breezy
north to east wind expected Monday, persisting locally in the
foothills and mountains Tuesday.

&&

.AVIATION...
VFR conds ovr Intr NorCal nxt 24 hrs. Lcl Nly sfc wnd gsts to 25
kts poss in Cntrl Vly btwn 18z-02z and NE to E sfc wnd gsts to 30
kts poss in fthl and mtns thru Wed mrng.

&&

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

$$


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