California, 2017

High Wind in California, April 24, 2017

April 24, 2017 · NWS HNX · 2 events in 2 counties and zones

Strengthening high pressure over the Eastern Pacific and strengthening low pressure over the Desert Southwest produced a strong pressure gradient over Central California resulting in a period of gusty winds over the Kern County Mountains and Deserts from the afternoon of the 23rd until the evening of the 24th. Several reports of wind gusts exceeding 45 mph were reported during this time frame.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS HNX wrote it up.

Strengthening high pressure over the Eastern Pacific and strengthening low pressure over the Desert Southwest produced a strong pressure gradient over Central California resulting in a period of gusty winds over the Kern County Mountains and Deserts from the afternoon of the 23rd until the evening of the 24th. Several reports of wind gusts exceeding 45 mph were reported during this time frame.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Hanford, CA wrote its last area forecast discussion before the first event at Apr 24, 2:18 AM PST, 8 hours 52 minutes earlier.

Area forecast discussion, Apr 24, 2:18 AM PST, 8 hours 52 minutes before
Area Forecast Discussion
National Weather Service San Joaquin Valley - Hanford CA
318 AM PDT Mon Apr 24 2017

.SYNOPSIS...
storm system moving g inland into the PAC NW will bring a few
showers to the Sierra today as the low moves inland and weakens.
Eastern Pacific ridge will remain nearly stationary as a low
center deepens over the Great Basin. Gusty winds across the area
will be expected at times through most of the week.

&&

.DISCUSSION...
Regional MRMS radar data is indicating showers slowly moving
south through NRN CA. We are expecting clouds to continue to
increase today with showers possible across the Sierra, mainly
north of Kings Canyon. Snow levels are expected to be around 8k
feet or higher. Not much precipitation is expected with this
system. Windy conditions will weaken some across the Kern Co
mountains and desert areas later this morning, but is forecast to
increase again later this afternoon. Winds could become quite
strong later tonight through the passes and across the Kern Co
desert near Mojave. We have extended the wind Advisory through

A second system is forecast to move inland into the PAC NW on
Tuesday. This system will spread moisture south into the Sierra
again on Wednesday. A strong trough will move through the area and
allow winds to increase once again over the desert area. Winds
will be strong through Friday as a very impressive offshore flow
sets up across the area.

Warming up on Saturday as EPAC ridge builds in and winds die out.
Continued warm and nice this upcoming weekend with dry conditions
expected.

&&

.AVIATION...
Mountain obscuration over the Sierra Nevada until 03z Tues. Strong
gusty winds over 35 kts over the Tehachapi mountains and local
mountain obscuration developing after 03z Tue. Otherwise VFR skies
and visibility with breezy conditions will prevail throughout the
central CA interior during the next 24 hours.

&&

.AIR QUALITY ISSUES...
None.

&&

.CERTAINTY...

The level of certainty for days 1 and 2 is medium.
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...
Wind Advisory until 5 AM PDT Tuesday CAZ095-098-099.

&&

public...JDB
avn/fw...MV
synopsis...JDB

weather.gov/hanford

Event by event

2 high wind. Local standard time, as filed.

High Wind, Tulare Cty Mtns

When
April 24, 11:10 AM PST
Where
Tulare Cty Mtns forecast zone
Measured
50 kt (58 mph) measured gust
Reported by
RAWS

The Bear Peak RAWS reported a peak wind gust of 58 mph.

High Wind, Kern Cty Mtns

When
April 24, 1:27 PM PST
Where
Kern Cty Mtns forecast zone
Measured
65 kt (75 mph) measured gust
Reported by
RAWS

The Bird Springs Pass RAWS reported a peak wind gust of 75 mph.

What these are

High Wind
Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in California in 2017Every state in 2017This day in weather historyWarnings in California, April 2017

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 693044, 693043.