Area Forecast Discussion
Issued by NWS San Joaquin Valley, CA

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FXUS66 KHNX 200951
AFDHNX

Area Forecast Discussion
National Weather Service San Joaquin Valley - Hanford CA
251 AM PDT Fri Apr 20 2018

.SYNOPSIS...Dry weather along with a significant warming trend is
expected today through the weekend. Little changes are expected
early next week then a cooling trend towards the end of next week
with a slight chance of some precipitation, mainly over mountains.

&&

.DISCUSSION...Water vapor satellite imagery shows the upper low
continues to pull away, now spinning over the Utah/Arizona border.
A drier northerly flow aloft has shifted overhead and precipitation
has ended. Winds are still gusting across the Kern County mountains
and desert, but are diminishing. Most gusts are below 30 mph now,
but some around 40 mph should continue around Mojave for the next
few hours. Winds will pick up again this afternoon and into the
evening with gusts of 25-35 mph through and below the passes.

A positively tilted upper ridge is building in over the Pacific
Northwest and will expand over California this afternoon through
the weekend. This will bring a significant warming trend to the
region. High temperatures will be several degrees warmer today
with mid-upper 70s across the San Joaquin Valley and Kern County
Desert, right around climatological normal for this time of year.
Highs will climb into the lower to mid 80s on Saturday then a few
degrees warmer on Sunday will push forecast highs into the upper
80s for most of the SJV and Kern Co. Desert, 10-15 degrees above
normal. A few locations could very well top 90 degrees by Sunday.
Little changes are expected early next week as the models drop an
upper low south over the EPAC. After major disagreements the last
few runs, they are beginning to converge on a solution of shifting
the low inland late next week. A cooling trend is forecast with
temps lowering back to near normal by Friday. Slight POPs are in
for the Sierra and gusty winds in the Kern Co. mountains/desert.

&&

.AVIATION...
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...DCH
avn/fw...BSO
synopsis...DCH

weather.gov/hanford


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