Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA

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FXUS66 KHNX 140941
AFDHNX

Area Forecast Discussion
National Weather Service San Joaquin Valley - Hanford CA
241 AM PDT Mon Aug 14 2017

.SYNOPSIS...Cooling trend through mid week. Temperatures will
begin to rebound Wednesday with near normal temperatures by
Thursday. Otherwise...thunderstorms will be possible over the
Sierra Nevada...generally from Kings Canyon National Park
northward...much of the week.

&&

.DISCUSSION...As has been advertised the past week or so...the
cooling trend has arrived. An upper trough currently digging into
northern California will continue to push southward
today...arriving in southern California late tonight into Tuesday
morning. Temperatures this afternoon will generally be between 5
and 7 degrees cooler compared to those observed yesterday.
Additional cooling is expected on Tuesday as temepratures fall
another 3 to 5 degrees. Tuesday looks to be the coolest day of the
week...with San Joaquin Valley temperatures generally in the upper
80s to low 90s. The valley has not experienced high temperatures
this low since the middle of June...a full two months.

Breezy west to northwest winds will be present across the west
side of the San Joaquin Valley as well as the desert and Kern
County mountains today and again on Tuesday. Expect occasional
wind gusts to 30 mph on the west side of the valley with gusts
upwards of 40 mph in the desert and Kern mountains.

A slight chance of thunderstorms was added to the forecast over
the Sierra Nevada both Tuesday and Wednesday afternoon and
evening as the upper trough moves through the area. Both the high
res ARW and NMM as well as the NAM indicate scattered
showers...generally from Kings Canyon National Park northward.

A warming trend will occur over the region Wednesday into the
weekend as high pressure begins to build over the area.
Temperatures will reach seasonable levels by Thursday and climb to
slightly above normal Friday through the weekend.

&&

.AVIATION...
VFR conditions will prevail across the central Ca interior during
the next 24 hours.

&&

.AIR QUALITY ISSUES...
None.

&&

.CERTAINTY...

The level of certainty for days 1 and 2 is medium.
The level of certainty for days 3 through 7 is medium.

Certainty levels include low...medium...and high. Please visit
www.weather.gov/hnx/certainty.php for additional information
an/or to provide feedback.

&&

.HNX Watches/Warnings/Advisories...
NONE.
&&

$$

public...Riley
avn/fw...DS
synopsis...Riley

weather.gov/hanford


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