Area Forecast Discussion
Issued by NWS Sacramento, CA

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FXUS66 KSTO 131744

1044 AM PDT TUE OCT 13 2015

Hot and dry weather continues through at least mid-week,
approaching records. A weather system moving up from southern
California may bring a few showers to Sierra Nevada late Wednesday
into Thursday before a frontal system brings widespread shower
chances over the weekend.


Building high pressure along with plenty of sunshine and lack of
any substantial onshore flow will lead to unseasonably warm to hot
weather across the interior of NorCal the next few days. High
temps will be 10-15 degrees above average, and a few daily record
highs may be exceeded.

Upper low west of Baja may become a player in our weather after
mid-week as it moves northward into central California early
Thursday. The low moves northward in response to the approach of a
deeper upstream trough presently moving across the Aleutians. As
the upper low moves northward and weakens, it may generate some
Sierra Nevada shower activity south of Highway 50 on Wednesday
and potentially expand to near Lassen Park on Thursday. Increased
cloudiness with this low along with the return of at least a weak
Delta Breeze will likely impact temperatures a few degrees as
well beginning tomorrow, but we still expect well above average
temperatures through the end of the work week.

.Extended Discussion (Saturday through Tuesday)
An approaching trough will move into NorCal on Saturday with the
chance of showers increasing through the day across our entire
CWA. Showers will linger into Sunday as the trough tracks
eastward. Dry conditions return to NorCal on Monday as high
pressure rebuilds along the west coast. JBB


VFR conditions with light winds across interior NORCAL the next
24 hours.



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