Area Forecast Discussion
Issued by NWS Sacramento, CA

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FXUS66 KSTO 221555

Area Forecast Discussion
National Weather Service Sacramento CA
855 AM PDT SUN MAY 22 2016


An upper level disturbance will continue to bring unsettled weather
and cool conditions today across NorCal. Chances for showers and
thunderstorms are expected for locations north of I-80. Unsettled
weather will continue for the beginning of the work week with
warming temperatures expected by mid-week.


.Short Term (Today through Wednesday Night)...

Showers are lingering over Shasta County this morning with all
other interior areas remaining dry. As the day goes on chances of
showers may develop from the Central Sacramento Valley northward
and over the mountains. Isolated thunderstorms will be possible
but overall conditions today will not be as unstable as they have
been the last two days.

Low pressure will remain over the region at least through
Wednesday with unsettled weather continuing for the interior.
Most of the activity through mid week looks to occur in the
mountains with isolated activity possible for the valley.
Temperatures will continue to be cooler than normal.



Long-wave trough forecast to remain over the West during the
extended period. Models are forecasting another closed low to drop
south into far northern California by the end of the week bringing
another round of cool and unsettled weather for the region during
the Memorial Day weekend, though details are rather uncertain on
how far south the low will move.


An upper level disturbance will remain over NorCal the next 24
hours. Mainly VFR conditions are expected across Valley TAF sites,
while periods of MVFR/IFR conditions occur over the mountains
in isolated to scattered showers. Surface winds at TAF sites will
be light around 4-10 kts.


.STO Watches/Warnings/Advisories...

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