High Wind in California, June 20, 2019

Area Forecast Discussion
National Weather Service Hanford CA
425 PM PDT Thu Jun 20 2019

.UPDATE...Updated air quality issues.

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.SYNOPSIS...Dry weather will prevail over the district during the
next 7 days. A noticeable cooling trend will continue until
Friday and will be accompanied by gusty winds through and below
the mountain passes. The weekend and the early part of next week
will bring lighter winds and slightly above average temperatures
as a ridge builds into the western US.

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.DISCUSSION...As of the time of this writing, a few cumulus clouds
have developed over the Sierra Nevada as shown on the latest
satellite imagery. Earlier today, a few locations have reported
wind gusts around 45 mph, especially near the passes and canyons
in eastern Kern County and the passes through the hills and higher
terrain adjacent to the west side of the Central Valley. Expect
mostly clear skies and dry conditions to continue through at least
the middle of next week. The primary short-term concern remains
gusty winds through the passes and canyons in the higher terrain
to the west of the San Joaquin Valley, the Tehachapi Mountains,
and into the Kern County desert during later this afternoon into
the evening hours. As for Friday, expect another round of gusty
winds in the Kern County mountain and desert areas during the late
afternoon and evening. Otherwise, temperatures will fall to
closer to seasonal averages or slightly below as the low pressure
system passes over the Great Basin this evening and Friday.

On the weekend, temperatures will trend back upward by several
degrees and likely will not be as warm as the last couple of
days. In other words, we are not anticipating widespread triple
digits for daytime highs through next week, as high pressure will
make a brief return, though it will not be especially strong.
However, temperatures will remain fairly warm, or in the mid to
upper 90s in the lower elevations, including in the San Joaquin
Valley, lower Sierra Nevada foothills, and the Kern County desert
areas. Temperatures will remain steady, and the warmest period
during the next seven days is expected from Sunday and into early
next week. Models remain in decent agreement that another low
pressure system will pass over the Pacific Northwest by the
middle part of next week. As we will be on the southern end of
this system, we expect dry weather to continue, but temperatures
are forecast to once again drop to near or slightly below
average. It is possible winds could ramp back up during the middle
of next week, although we will continue to monitor.

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.AVIATION...
Wind gusts of 35 knots or greater will occur through and below
the Kern County mountain passes and on the west side of the San
Joaquin Valley until 07Z Friday and redevelop in the Kern County
mountain passes by the following afternoon, or by 22Z Friday.
Otherwise, VFR conditions will prevail over the central California
interior during the next 24 hours.

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.AIR QUALITY ISSUES...
None.

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.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.html for additional information
an/or to provide feedback.

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.HNX WATCHES/WARNINGS/ADVISORIES...
Wind Advisory until 9 PM PDT Friday for CAZ196-198-199.

Wind Advisory until midnight PDT tonight for CAZ179.

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public/aviation...BSO

weather.gov/hanford