High Wind in California, May 7 to 8, 2021

Area Forecast Discussion
National Weather Service Hanford CA
210 AM PDT Fri May 7 2021

.SYNOPSIS...
Dry weather will continue over the central California interior
through at least the end of next week. Breezy to locally windy
conditions can be expected through Monday with slightly above
normal high temperatures. Tuesday through Thursday will bring a
return of unseasonably warm afternoon temperatures.

&&

.DISCUSSION...A robust onshore flow is bringing a refreshingly
cooler air mass into the central California interior early this
morning and has thankfully brought an end to our short-lived heat
wave, at least for the next few days. Temperatures are trending
several degrees lower this morning throughout the CWA compared to
24 hours ago. We expect these trends to continue through the day
and put high temperatures much closer to normal for a change.

In the broader synoptic picture, a moisture-staved upper level
trough will move eastward across the Golden State this morning
and exit into the Great Basin this evening. A strong upper level
jet associated with this trough will support gusty winds through
and below the mountain passes today. Westerly winds will increase
in the wake of this upper level trough this afternoon and continue
into tonight. In the normally windiest locations, winds will gust
to about 35 mph below the passes on the west side of the valley to
about 55 mph below the Kern County mountain passes where a wind
advisory has been issued. The probability of a wind gust to 40 mph
this evening is 34 percent in Inyokern and 54 percent in Mojave.

The ensembles forecast the upper level trough to remain anchored
over the Great Basin through Monday. That's pretty good news for
us because it will keep California under a dry northwesterly flow
aloft for a few more days. Temperature trends will remain fairly
static each day through Monday as a result. A recurrence of gusty
winds can be expected on the west side of the San Joaquin Valley
and in the Kern county mountains and desert during the afternoon
and evening hours this weekend. High temperatures Saturday through
Monday will be slightly above normal, while nighttime lows are
seasonably cool.

A big warm up is likely during the early to middle part of next
week as an upper level ridge of high pressure to our west builds
into the Golden State. Tuesday through Thursday will bring a return
of 90-degree heat in the San Joaquin Valley, lower foothills and
the Kern County desert. Wednesday and Thursday will probably be the
hottest days with thermometer readings possibly topping the century
mark in a few locations. Although high temperatures trend downward
by the end of next week, Friday will still be much warmer than
normal. Otherwise, our weather pattern will remain bone dry for at
least the next 7 days.

&&

.AVIATION...
Winds in excess of 35 knots are possible through and below the Kern
county mountain passes from 23z Friday until 12z Saturday. Otherwise,
VFR conditions can be expected over the central California 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 high.

Certainty levels include low...medium...and high. Please visit
www.weather.gov/hnx/certainty.html for additional information
an/or to provide feedback.

&&

.HNX WATCHES/WARNINGS/ADVISORIES...
Wind Advisory from 4 PM this afternoon to 4 AM PDT Saturday for
CAZ195>199.

&&

synopsis...Durfee
public/aviation/fw...Durfee
PIO/IDSS...BS

weather.gov/hanford