Area Forecast Discussion
Issued by NWS Sacramento, CA

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FXUS66 KSTO 291630
AFDSTO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
930 AM PDT SAT AUG 29 2015

.SYNOPSIS...
PACIFIC SYSTEM MOVING ACROSS REGION TODAY BRINGING CHANCE OF
PRECIPITATION NORTH OF I-80. COOLER AND DRIER CONDITIONS WITH
BELOW NORMAL TEMPERATURES NEXT WEEK.

&&

.DISCUSSION...
A weak system is moving through the region bringing cooler air and
a few showers to the interior. The system is now mainly over the
western slopes. A few showers may linger into the afternoon but
in general what is left of the system will be moving east of the
crest. Temperatures will be a lot cooler today down 15 to 20
degrees from yesterday. Highs will be in the 80s for the valley
and mainly in the 60s for the mountains. Clouds will clear from
west to east late in the day into the early evening hours.

The current trough over the region will lift northeast on Sunday
but another trough will drop down along the coast from Canada
early next week to help keep temperatures cooler than normal.
The trough does not look like it will bring any precipitation to
our area at this time.


.EXTENDED DISCUSSION (Wednesday THROUGH Saturday)

Northern California will remain under the influence of a large
scale trough pattern through the extended period. This will likely
keep temperatures below normal through the end of next week. The
GFS continues to hint at a deeper trough bringing precipitation to
far northern CA late next week. The consensus suite of models
leaves things dry however, and our forecast hedges toward the
consensus.

Dang

&&

.AVIATION...

VFR conditions continue. Weather system currently moving through
the area, with scattered showers possible through early afternoon
north of I80. South to Southwest winds 10-15 kt with local gusts
up to 30 kt will begin to subside this evening.

&&

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

$$


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