Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA

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FXUS66 KHNX 192238

Area Forecast Discussion
National Weather Service San Joaquin Valley - Hanford CA
338 PM PDT Thu Apr 19 2018

.SYNOPSIS...A weather system will bring a chance of mainly light
showers through the evening, mostly over the mountains.
Breezy to windy conditions diminish tonight. Dry weather along
with a significant warming trend is expected Friday through the


.DISCUSSION...Showers developed across the Sierra Nevada this
afternoon. Snow was reported as low as 4kft and a few lightning
strikes detected. An upper low shifted E overnight and is centered
in S Nevada. The shower activity may continue into the evening
due to disturbances embedded in NW flow with the upper low. Strong
gusty winds also occurring across E Kern county especially below
mountain passes. A strong upper level jet behind the upper low is
lined up with gradients and orthogonal to the Tehachapis
Mountains. Expect the high winds to diminish starting tonight
around 06z as the wind jet shifts further East towards the high
desert. NW winds will upslope over the Tehachapi Mountains with
cloud cover and some snow possible, however most high resolution
models show little precipitation accumulation tonight.

High pressure will build in on Friday for a return to dry weather
along with a warming trend that will continue through the weekend.
Temperatures are forecast to climb to as much as 15 degrees above
normal by Sunday with highs in the upper 80s to lower 90s across
the San Joaquin Valley and the Kern County Desert. Medium range
models continue to struggle with the pattern next week. Some light
precipitation will be possible late Wednesday and Thursday.
A modest cooling trend is indicated through midweek, but highs
still remaining above normal.


Expect scattered showers over the mountains, producing areas of
IFR/LIFR and terrain obscurations in clouds and precipitation
through 06Z Fri. Strong gusty winds to 35kt across Eastern Kern
County mountains and desert until 06Z Fri. Otherwise, VFR
conditions will prevail across the Central CA Interior during the
next 24 hours.





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...
Wind Advisory until 11 PM PDT this evening CAZ095-098-099.



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