Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA

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FXUS66 KHNX 272211
AFDHNX

Area Forecast Discussion
National Weather Service San Joaquin Valley - Hanford CA
311 PM PDT Tue Jun 27 2017

.SYNOPSIS...Temperatures will continue on the cool side near
seasonal through Wednesday then a slow warming trend will take
place starting Thursday. Dry conditions will also continue into
the weekend. Coastal passes and Kern County Mountain and desert
areas could see breezy to gusty winds today and Wednesday.

&&

.DISCUSSION...
Water vapor images show a westerly flow aloft with a dry airmass
across much of the SW. Thus dry and cool conditions will continue
across central California. Temperatures running cooler today over
most of the district due to the onshore marine flow. The best
cooling taking place across the South Valley where temperatures
running 4-8 degrees cooler.

Models in good agreement in maintaining a westerly flow aloft
through Wednesday. A couple of additional disturbances will move
through North California keeping the cool Westerly aloft while
suppressing a ridge south towards North Baja and offshore.
A moderate upper jet aligned W-E across North California will
maintain the onshore flow. Model indicate winds picking up each
afternoon and evening today and Wednesday especially through and
below the passes of Kern county Mountains and desert.

Models prog the upper ridge rebuilding northward over the East
Pacific for the latter part of the week. This should usher in dry
and warm trend for the second half of the work week. Temperature
may cool a bit for the weekend with models indicating a weak upper
trough pushing into North California on Saturday. The forecast
remains dry with little moisture moving into the area.

The lower temperatures may slow the runoff of melting snow from
the Sierra and help to alleviate some of the flooding concerns
downstream. However, high water level continue in the Kings River
with large outflow from Pine Flat Dam and a Flood Warning remains
in effect for portions of Northern Kings, Northwest Tulare and
Central Fresno Counties. Waterways will continue to run cold,
deep, fast and dangerous as they continue to be fed by melting
snow.

&&

.AVIATION...
Surface winds gusting up to 35 kts possible across the Kern County
Mountain through 12Z Wednesday morning. Otherwise, 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 high.
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...MV
avn/fw...Molina
prev discussion...DS
synopsis...MV

weather.gov/hanford


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