Area Forecast Discussion
Issued by NWS Sacramento, CA

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000
FXUS66 KSTO 101030
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
330 AM PDT Tue Oct 10 2017

.SYNOPSIS...
Dry with temperatures around average for the remainder of the
week. Storm systems passing north of the area will keep winds
gusty at times through the week.

&&

.DISCUSSION...
Skies are clear other than a few high clouds passing overhead
ahead of the approaching trough. Satellite imagery still showing
significant heat emanating from the Atlas Fire burning along the
Napa/Solano border to the west of Fairfield. Winds are much
lighter and temperatures considerably cooler compared to 24 hours
ago a surface gradients have relaxed, but the airmass remains very
dry with dew points in the 20s and 30s.

Upper level trough swings through the PacNW today will brush close
enough to NorCal to bring increased afternoon southwest wind gusts
for the foothills and mountains. Gusts from 15 to 20 mph will be
possible foothills and up to 30 mph over highest terrain during
the late afternoon.

North winds will return to the Sacramento Valley Wednesday and
Thursday with potential critical fire weather conditions. At this
time sustained speeds from 15 to 20 mph look possible. Although,
some increase in relative humidity may mitigate threat as
temperatures fall 10 degrees or more versus early week readings.

&&

.EXTENDED DISCUSSION (Saturday THROUGH Tuesday)
Upper ridging in the EPAC builds inland this weekend then flattens
some early next week. Dry weather expected through the extended
forecast period with near to slightly below normal temperatures.

&&

.AVIATION...
Wly flow alf as upr trof apchs NorCal and movs thru tngt into Wed.
VFR conds ovr Intr NorCal nxt 24 hrs. In Cntrl Vly, tda Sly sfc
wnd blo 12 kts bcmg Nly to 20 kts aft 07z Wed. Thru Delta, SWly
sfc wnd incsrg this eve to 20 kts bcmg Nly Wed mrng. Gsty SW-W sfc
wnd gsts omtns to 35 kts poss nxt 24 hrs.

&&

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

&&

$$



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