Area Forecast Discussion
Issued by NWS Sacramento, CA

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221
FXUS66 KSTO 220915
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
215 AM PDT Sun Oct 22 2017


.SYNOPSIS...
Warming temperatures through early next week. Breezy north to east
wind tonight into Tuesday.

&&

.DISCUSSION...
Upper ridging progged to build over Interior NorCal today lifting
storm track farther north into Oregon. AMS warms under increasing
subsidence resulting in temperatures this afternoon topping out
about 5 to 10 degrees warmer than Saturday. Highs expected in the
upper 70s for the Central Valley which is around normal for this
time of year.

Heights continues to increase tonight into Monday as surface high
builds through Oregon into the Great Basin. Low level pressure
gradient increases resulting in some breezy north to east wind
beginning tonight and continuing into Tuesday. Northerly wind in
the Central Valley is strongest Monday afternoon, but speeds look
to remain below advisory criteria. Northeasterly wind in the
foothills and mountains peaks Monday night into Tuesday morning.
Highs temperatures Monday and Tuesday are forecast to be upwards
of 10 to 15 degrees above normal with 80s to low 90s in the
Central Valley. Upper high retrogrades offshore Wednesday allowing
for minor cooling of about 2 to 5 degrees over Interior NorCal.

PCH

&&

.EXTENDED DISCUSSION (Thursday THROUGH Sunday)
Strong blocking ridge forecast to remain in place off the coast
of the PacNW through the extended period maintaining dry weather
across the region with mild days and cool nights. The mid-week
slider system is now forecast to be further to the east, so north
winds don`t look as breezy for Thursday.

&&

.AVIATION...
VFR conditions the next 24 hours. Northerly winds 10-15 kts
develop thru the Central Valley 20Z-02Z Monday.

&&

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

$$



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