Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA

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FXUS66 KHNX 162055
AFDHNX

Area Forecast Discussion
National Weather Service San Joaquin Valley - Hanford CA
155 PM PDT Sat Sep 16 2017

.SYNOPSIS...
Above normal temperatures today and tomorrow before a trough
moves through the region on Tuesday with near normal temperatures
and dry conditions. A second and stronger trough is expected
Thursday with temps falling below normal later in the week. Breezy
to gusty winds will be possible at times, especially through the
coastal pass and the Kern County mountain pass areas.

&&

.DISCUSSION...
Dry WNW flow across the area will keep temperatures above normal
today through Monday with a strong trough moving through the area
on Tuesday. Cumulus field across the Sierra today remains flat as
little or no moisture available in the high country. Temps will
cool down to near normal on Tuesday with gusty NW winds...
especially through the West side passes and through the Tehachapi
Pass. Winds will also be gusty into Mojave as the trough moves
through. Temps will remain near normal on Wednesday with continued
breezy conditions.

A second and stronger trough will move into the region on
Thursday. We have introduced our first chance of high elevation
snow with the trough on Thursday. Snow levels will be around 8500
feet Thursday and Thursday night. Snow will be light and moisture
will be limited. Not all guidance is advertising snow on todays
12z model runs...so confidence remains low. It will be quite
windy as the trough moves through with decent cold air advection
behind the front. Temps will have trouble getting into the upper
70s on thursday and friday in the SJV. A gradual warming trend to
near normal on Saturday is expected as the trough moves east.

&&

.AVIATION...
Areas of smoke from wildfires will continue to produce MVFR
visibility over the Southern Sierra Nevada and adjacent foothills.
Otherwise, VFR conditions can be expected over the Central CA
Interior during the next 24 hours.

&&

.AIR QUALITY ISSUES...
None.

&&

.CERTAINTY...

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

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...JDB
avn/fw...JEB
synopsis...JDB

weather.gov/hanford


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