Area Forecast Discussion
Issued by NWS Sacramento, CA

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FXUS66 KSTO 231029
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
329 AM PDT THU JUN 23 2016

.SYNOPSIS...
Cooler daytime temperatures today and Friday down to near normal.
Warming again over the weekend remaining well above normal through
next week. Dry, breezy north winds Friday afternoon through
Saturday with elevated fire weather concerns.

&&

.DISCUSSION...
Onshore surface gradient and delta breeze has increased over the
last 24 hours as an upper low off the Pacific Northwest coast
drops slowly southward. Most locations are seeing temperatures a
few degrees cooler this morning and this should translate to
cooler temperatures today. Models in good agreement in shifting
the low inland into the northern Great Basin during the day on
Friday. Surface high pressure building into the Pacific Northwest
will bring breezy northerly winds by afternoon. Reduced onshore
flow should bring a slight warm up most areas despite little
change in overall airmass. The combination of breezy north winds
and the resulting drying airmass will bring increased fire
concerns. Breezy north winds will continue some areas through the
night although lack of upper level support may bring decoupling at
many valley locations. Upper ridging starts rebuilding on Saturday
bringing a significant warming trend. Daytime highs will go from
near normal on Friday to from 5 to 10 degrees above normal on
Saturday. Dry and very warm temperatures will keep fire concerns
going on Saturday although weakening surface gradients will bring
slowly decreasing winds during the day. Ridging builds a bit more
on Sunday for a bit more warming

&&
.EXTENDED DISCUSSION (Monday THROUGH Thursday)

High pressure will dominate our weather pattern with above normal
temperatures. Daytime highs will range 5-14 degrees above normal
Monday thru midweek. Expect dry conditions with temperatures in
the upper 90s to 105 across the Valley, and 70s-90s over
foothills and mountains.  JBB


&&

.AVIATION...

VFR conditions across TAF sites next 24 hours. Sustained winds
less than 10 knots in the Valley with occasional gusts up to 18
kts. Expect occasional gusts up to 25 knots near the Delta
region.

&&

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

$$



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