Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA

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FXUS66 KHNX 160051 AAA

Area Forecast Discussion
National Weather Service San Joaquin Valley - Hanford CA
450 PM PST Sat Dec 15 2018

...Updated Air Quality section...

Dry weather will persist through Sunday. A cold front will
approach California Sunday afternoon. This cold front will be
responsible for valley rain and mountain snow later Sunday night
and Monday. Dry weather will return to Central California Monday
night and persist through at least Friday.


A ridge of high pressure kept skies clear today with some high
clouds starting to move in from the Northwest. The higher clouds
are moving in ahead of a storm system that is still off the
California Coast this afternoon. In the meanwhile, enough
atmospheric mixing and a drier airmass will keep the potential for
fog development low. Yet, will keep a mention of patchy fog near
the intersection of Highway`s 43 and 198 (even with thicker
clouds rolling in overnight). By Sunday afternoon, next storm
system will approach the Central California Interior as rain and
snow could reach Yosemite and Merced before sunset.

Models showing higher confidence levels in introducing a stronger
storm into the region later on Sunday. The first storm that
crossed the region with minimal precipitation has opened the door
for this stronger storm to enter the region. While models are
showing some uncertainty on the timing and strength of Monday`s
storm, models do agree on introducing a digging trof pattern near
the start of the work week. Therefore, confidence is growing that
this storm will produce measurable rain and snow as far south as
the Kern County Mountains. Jet Max dynamics reaching into Southern
California early next week may add support to having Kern County
receiving measurable precipitation on Monday. Moisture transport
analysis showing higher than average potential for possible
measurable precipitation during the "start-of-the-week storm".

By Monday night, as the dynamic support exits the region,
lingering light precipitation may continue before possible
clearing toward Tuesday morning. A developing ridge pattern toward
Wednesday will further the clearing toward the latter part of the
week as fog development increases during the those periods. While
models do hint toward the ridge pattern breaking down toward the
end of the week, any energy will still ride over the region with
minimal possible precipitation for the district.


VFR conditions will prevail over the next 24 hours.


On Sunday December 16 2018...Fireplace/Wood Stove Burning Status is:
No Burning Unless Registered in Fresno, Kern, Kings, Madera, Merced
and Tulare Counties. Further information is available at



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 for additional information
an/or to provide feedback.


.HNX Watches/Warnings/Advisories...
Winter Weather Advisory from 4 PM Sunday to 4 PM PST Monday



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