Weather Service Report


426 
FXUS66 KSTO 290459
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
959 PM PDT TUE JUN 28 2016

.SYNOPSIS... 
Hot and mainly dry weather this week. Isolated late day
thunderstorms possible over the mountains.

&&

.DISCUSSION...
Nice delta breeze this evening is cooling most areas off faster
tonight. The breeze will stay up overnight and cool temperatures
from the upper 50s in the delta to low to mid 60s for
Sacramento/Stockton areas by morning. Some of the warmer spots
in the valley will only cool to around 70 degrees. Easterly flow 
in the foothills may bring some hints of smoke into the eastern
portions of the valley by morning from the trail head wildfire.
High pressure will weaken slightly for the next several days as a
weak trough moves into the Pacific Northwest. Temperatures look
like they be trending lower for Wednesday with highs in the
Sacramento region in the upper 90s to around 102. The far north
end of the valley will heat up to around 105 degrees. Airflow
through the delta may be a little stronger on Wednesday to help
start the cooling trend.

Thursday and Friday will continue to be hot inland with highs
around 100 for Sacramento with well inland areas around 105.

Some monsoonal moisture will be making its way northward along the
crest through Thursday of this week. Some isolated afternoon
thunderstorms may be possible...mainly south of Alpine County and
on the east side of the crest.

&&


.EXTENDED DISCUSSION (Saturday THROUGH Tuesday)

Upper troughing regime will persist along the Pacific Northwest during
this forecast period. This pattern should result in near-normal temperatures
across interior northern California this weekend into early next
week. Dry conditions are expected, with daytime highs in the 90s
across the Valley, and 70s-80s over higher elevations.


&&

.AVIATION...


VFR conditions next 24 hour period across TAF sites. Light winds
generally less than 10 knots, except for occasional gusts around
25kt near the Delta region. 
&&

.STO Watches/Warnings/Advisories...
None.
&&

$$

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Western Regional Climate Center, wrcc@dri.edu