Area Forecast Discussion
Issued by NWS Sacramento, CA

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FXUS66 KSTO 270448

Area Forecast Discussion
National Weather Service Sacramento CA
948 PM PDT TUE JUL 26 2016

Daytime highs will remain well above normal through Friday with
little relief overnight. Cooler this weekend with isolated
thunderstorms possible over the higher Sierra.


Temperatures have been much warmer this evening for interior
locations. The marine layer is below 1000 feet deep and wont have
much impact on the interior the couple of days. The Bay Area
temperatures have been trending warmer this evening again so
expect temperatures to warm faster during the morning hours after
most of the interior valley cools off into the 60s to lower 70s

Tomorrow and Thursday is when the high pressure from the
Southwest begins to build over our area and temperatures will
mostly range from 105 to 110 degrees throughout the valley. The
hottest temperatures will be over the Northern Sacramento valley.
Wednesday`s and Thursday`s records are not as high as Today`s
records so at least some record heat is expected the next couple
of days.

We will have to keep an eye out for some possible monsoonal
moisture working it way northward later in the week and impacting
parts of the Sierra Nevada. The models indicate Thursday and
Friday is when we could see some possible thunderstorms this far

The delta breeze should be stronger Wednesday night and Thursday
night and may help the delta to cool slightly the following days
but Friday night is when the stronger delta breeze is expected
along with some synoptic cooling.



Upper level trough swings through the Pacific Northwest this
weekend giving us a little more onshore flow. Temperatures will
begin to cool to around normal for this time of year (mid to upper
90s) for much of the Valley by later part of the weekend.

Models still indicating some monsoonal moisture reaching portions
of the Sierra Saturday and Sunday. A few isolated thunderstorms
are possible in the Sierra south of Hwy 50 during this time, but
this pattern typically results in convection on the eastern side
of the crest.



VFR conditions across all TAF sites for the next 24 hours. Haze
possible in areas due to smoke from the Soberanes Fire, but smoke
itself will remain elevated. Winds below 10kts with some gusts up
to 20 kts in the Delta region.



.STO Watches/Warnings/Advisories...

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