Area Forecast Discussion
Issued by NWS Sacramento, CA

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FXUS66 KSTO 171554
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
854 AM PDT Mon Jul 17 2017


.SYNOPSIS...
Hot and dry through the week. Breezy winds possible this evening
into Tuesday.

&&

.DISCUSSION...
Dry weather and clear skies prevail across the region today as dry
southwest flow continues aloft. *Slightly less hot* weather is
expected today as high pressure over the Desert Southwest shifts
eastward. Temperatures will likely still reach triple digit
territory across much of the Central Valley however, with 70s to
90s expected over the mountains. Delta Breeze should strengthen
more appreciably this evening and tonight.

A series of shortwave troughs will pass through northern
California today, and again Tuesday. Southwest winds will
strengthen with both of these waves, the stronger of which will be
Tuesday. Humidity values remain low however, and Red Flag Warnings
will remain in effect along the midslopes below 5000 feet. Any
fire that does start may spread rapidly.

Dang

&&

.EXTENDED DISCUSSION (Friday THROUGH Monday)

Seasonal temperatures will remain through at least Friday as a
trough remains along the west coast. Temperatures will warm-up
some across interior NorCal by the weekend as high pressure
strengthens, but do not look excessive for the time of year.
Monsoon moisture is expected to remain to the south and east of
the region through the weekend.
&&

.AVIATION...

VFR conditions next 24 hours. Increasing southerly winds 10-15 kts
with gusts around 20 kts in the Sacramento Valley (northwesterly
in the northern San Joaquin Valley) by 22Z.
&&

.STO WATCHES/WARNINGS/ADVISORIES...
Red Flag Warning from 2 PM this afternoon to 8 PM PDT Tuesday
for Burney Basin and Northeast Plateau in Shasta County
Including Northwest Lassen NF north of Lassen NP-Northern Sierra
Foothills from 1000 to 3000 Ft. Includes portions of Shasta-
Trinity and Butte Units-Northern Sierra Including Lassen NP and
Plumas and Lassen NF/S West of the Sierra Crest (West of Evans
Peak-Grizzly Peak-Beckworth Peak).

&&

$$


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