Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA

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FXUS66 KHNX 211107

Area Forecast Discussion
National Weather Service San Joaquin Valley - Hanford CA
407 AM PDT FRI OCT 21 2016

Above normal temperatures will prevail through the first half of the
weekend. A storm system will approach northern California this
weekend, bringing a cooling trend to central California Sunday into
next week.


.DISCUSSION...The upper ridge over the western US is shifting
eastward as a Northeast Pacific upper trough approaches the west
coast. Central California can expect another day today of
generally clear skies with temperatures several degrees above
climo on the back side of the transiting ridge. Models are similar
in deepening the trough along the west coast through the upcoming
weekend into early next week. This will bring a cooling trend with
temperatures down to around normal by Monday and Tuesday. Southern
stream moisture pulled up ahead of the developing trough Sunday
and Monday is progged to stay mainly south of our area, with just
some slight chances for some showers over higher terrain. Meanwhile,
models just brush northern portions of our area with the moisture
fetch to our north Monday night into Tuesday, providing slight
chances for precip mainly in the mountains north of Tulare County
and the Valley north of Fresno County.

For the second half of next week, model solutions begin to
diverge a bit with the strength timing and trajectory of the
developing west coast trough, but generally show a deepening
system affecting our area. Our forecast during this period calls
for temperatures hovering near climo before dropping by the end of
next week. More significant precipitation chances are expected by
the end of the week.


VFR conditions will prevail at all terminals through the next 24





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 for additional information
an/or to provide feedback.


.HNX Watches/Warnings/Advisories...


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