Area Forecast Discussion
Issued by NWS Sacramento, CA

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FXUS66 KSTO 272250

Area Forecast Discussion
National Weather Service Sacramento CA
350 PM PDT WED JUL 27 2016

Daytime highs will remain well above normal through Friday with
little relief overnight. Cooler this weekend. Isolated
thunderstorms possible over the Sierra crest late in the week.


Little change to the forecast as hot weather continues over the
region with a strong Four Corners centered Ridge extending in.
Temperatures at 3 pm were very similar to what we saw on Tuesday,
generally within a degree or two. Sacramento is now 106, and could
still reach the record of 108 set in 1980. Modesto is 104, with a
record of 107 set in 1933 that is also in reach.

Thursday will be very hot once again. There will be more of a
Delta breeze than we saw last night, though it will not be a very
strong or cool one. It will bring slightly cooler low temperatures
to Delta influenced areas for Thursday morning. The rest of the
area will likely see temperatures a 1 to 3 degrees higher, making
it the peak of the heat wave for them. Friday will see some
very slight relief as the ridge weakens. Saturday will see high
temperatures more in the low triple digits, which is relatively
less hot as the heat wave winds down.

Some isolated showers/thunderstorms are possible over the Sierra
crest Thursday, Friday, and Saturday, south of Lake Tahoe as some
monsoonal moisture makes its way northward. Most activity will
remain east of the crest, though. EK



Weak upper troughing along the West Coast will be main synoptic feature
through the extended forecast period. This will help to bring
temperatures closer to seasonal normal with mainly 90s in the
Central Valley, except around 100 in the Northern Sacramento
Valley. Elsewhere, highs forecast from the 70s at the higher
mountain elevations to lower 90s in portions of the foothills. Dry
weather expected over Interior NorCal Sunday through Wednesday.



S-SW flow alf ovr Intr NorCal with VFR conds nxt 24 hrs. Lcl HZ/FU
poss in Nrn San Joaquin Vly fm Soberanes fire. Sfc wnds genly lgt
exc lcl SW up to 25 kts poss in Delta tngt.


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