Area Forecast Discussion
Issued by NWS Sacramento, CA

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FXUS66 KSTO 182145

Area Forecast Discussion
National Weather Service Sacramento CA
245 PM PDT Sat Aug 18 2018


Above normal temperatures continue through the weekend, with
gradual cooling early next week. Areas of smoke and haze will
continue, especially near wildfires.


Hot and dry conditions continue this afternoon as a ridge of high
pressure remains in control. Latest satellite imagery shows smoke
and haze enveloping the Coastal Range and the northern Sacramento
Valley due to light winds. Afternoon temperatures are running up
to 5 degrees warmer compared to yesterday`s, with Valley highs in
the mid to upper 90s.

Upper ridging axis will shift east of the state by Sunday morning
as an eastern pacific trough moves into the West Coast. Increased
onshore flow will bring some cooling near the Delta influenced
areas, with temperatures remaining a little above seasonal
normals. Some smoke improvement is expected early next week as
winds turn SWly due to the approaching trough. In addition, enhanced
SW winds are expected expected over the high Sierra ridges in the
afternoon and early evening hours, with gusts 20 to 30 mph.

The slow moving upper trough will bring near or slightly below
normal temperatures through midweek. Look for Valley highs in the
90s, and 70s to low 90s over the foothills and mountains. Breezy
afternoon winds will be possible over higher terrain. Dry
conditions will prevail across interior NorCal through the
forecast period.


Dry weather will continue later next week as interior NorCal will
lie between high pressure over the Southwest and a weak trough
lingering along the West Coast. Valley temperatures are expected
to remain in the 90s, with 70s to low 90s over the foothills and
mountains. Onshore flow could keep overnight temperatures in the
upper 50s to low 60s. Breezy winds possible at times over higher



Local MVFR/IFR conditions in HZ/FU near wildfires, otherwise VFR
continues over the area for the next 24 hours. Winds below 15
knots. Local SW surface wind gusts 15-25 kts vicinity Delta.




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