California, 2018

High Wind and Strong Wind in California, February 18 to 19, 2018

February 18 to 19, 2018 · NWS HNX · 6 events in 4 counties and zones

President's Day weekend got off to a warm and dry start across the area, but the weekend ended on the chilly side as a strong cold front pushed across Central California on the evening of February 18. Gusty winds accompanied the front and continued behind the cold front overnight and well into the President's Day holiday before diminishing by afternoon.

The toll

Deaths
0
Injuries
0
Property damage
$5,000
Crop damage
None recorded
Events
6

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.

President's Day weekend got off to a warm and dry start across the area, but the weekend ended on the chilly side as a strong cold front pushed across Central California on the evening of February 18. Gusty winds accompanied the front and continued behind the cold front overnight and well into the President's Day holiday before diminishing by afternoon. Several locations in the San Joaquin Valley measured wind gusts between 35 and 45 mph while several stations in the Kern County Mountains and Deserts reported wind gusts between 45 and 55 mph with a few low impact indicator locations reporting stronger gusts. In addition to the strong winds, light snow fell across portions of the Kern County Mountains in post frontal showers and several locations picked up between a dusting to an inch of snowfall.

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 Feb 18, 3:35 PM PST, 4 hours 2 minutes earlier.

Area forecast discussion, Feb 18, 3:35 PM PST, 4 hours 2 minutes before
Area Forecast Discussion
National Weather Service San Joaquin Valley - Hanford CA
335 PM PST Sun Feb 18 2018

.SYNOPSIS...
A southward moving cold front will bring an unseasonably cold air
mass into the central California interior by this evening.
Blustery winds will accompany the change to colder weather this
afternoon through Monday and snow showers are possible in the
mountains and foothills by this evening. Below freezing
temperatures are likely in the San Joaquin Valley Tuesday morning
and Wednesday morning. Colder than normal weather will continue
for the remainder of the week.

&&

.DISCUSSION...
Change is finally in store for Central California as a cold front
from the Gulf of Alaska continues to descend toward the district.
While the sun continued to shine this Sunday, clouds and showers
have spread into Northern California behind the cold front.
Surface Frontal analysis has the cold front over Northern
California and quickly approaching the Central California
Interior. Many surface observations are already showing a more
northwesterly wind component which places the cold front nearby.
Satellite IR imagery is showing the cold air cellular cloud
formations pushing past the Bay area and moving further southward.
Therefore, the cold air-mass will descend down into the region
tonight with elevated wind speed being the saving grace from a
very cold night. Clouds development from marginal instability will
be the other saving grace, but will also produce spotty showers
tonight as snow level could reach down into the foothills.
However, moisture continues to lack which will keep precipitation
on the lower accumulation-side with a few inches possible over the
higher terrain of the Sierra Nevada.

Current model prog timing still has the disturbance and associated
cold front crossing into Central California today as surface winds
have already started to increase. The cold front is entering the
region and should reach the southern portion of the district just
after sunset. At which time, the disturbance aloft will drop into
the region and place a good portion of its energy offshore along
the Central Coast. Model prog is still showing the flow pattern in
a more channel flow pattern characteristic. This channel flow
pattern is more indicative of strong winds than precipitation.
Satellite imagery and surface observations are already showing
this trend. Therefore, the higher confidence levels are with the
strong winds then the lower confidence of possible precipitation.
Yet, a portion of the wind component could become perpendicular to
the Sierra Nevada Range and Tehachapi Mountains. Therefore, can
not rule out precipitation over the higher terrain. However,
forecast precipitation accumulation is small for this event as
Central California is not favored in this flow pattern. Yet, the
lack of precipitation and the fact that lower elevations may see
snow will warrant the winter weather advisories for tonight.

Behind Today's cold front, models have been very consistent in
prog sub-freezing temperatures across the San Joaquin Valley from
around Tuesday through Thursday morning. While during the early
onset of the cold frontal passage, the coldest air will reside
over the area with possible moderation in conditions going into
Thursday morning. Therefore, the best chances of a hard freeze
[min's < 28F] will exist on Tuesday morning (once the winds settle
down and the skies clear out from Monday's event) with a good
chance of freezing [min's < 32F but > 28F] Wednesday morning.
While not as widespread as Wednesday morning, freezing will still
be possible on Thursday morning. By Friday, Modification of the
air-mass will make the potential for freezing less likely.
Furthermore, another disturbance will enter the region on Thursday
afternoon, which will increase winds and clouds along with mixing
of the atmosphere to prevent the freeze potential. While the
potential for precipitation is very low, will at least mention a
potential as very low accumulation will be likely. By next
weekend, an inside slider will maintain clouds, winds and possible
mixing of the atmosphere to moderate temperatures.

&&

.AVIATION...
Strong surface winds with gusts to 45 knots developing this
evening across the Kern County Mountains and Deserts. IFR
conditions in Blowing Dust will be also be possible across the
Mojave Desert overnight. Increasing clouds this afternoon with
clouds and showers obscuring the mountains after 00Z Monday.
Otherwise, 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...
Winter Weather Advisory from 9 PM this evening to 3 AM PST
Tuesday CAZ095.

Wind Advisory until 9 PM PST this evening CAZ095.

Winter Weather Advisory from 6 PM this evening to 4 PM PST
Monday CAZ093-094.

Hard Freeze Warning from midnight Monday night to 8 AM PST
Tuesday CAZ089>092.

Freeze Watch from late Tuesday night through Thursday morning
CAZ089>092.

Wind Advisory until 4 PM PST Monday CAZ098-099.

&&

public...Molina
avn/fw...JEB
synopsis...Molina

weather.gov/hanford

In the hours before

Local storm report, Feb 18, 4:12 PM PST, 3 hours 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HANFORD CA
412 PM PST SUN FEB 18 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0332 PM     NON-TSTM WND GST BLUE MAX                35.71N 117.97W
02/18/2018  M61 MPH          KERN               CA   MESONET

            MESONET STATION TR518, BLUE MAX.

0327 PM     NON-TSTM WND GST BIRD SPRINGS PASS       35.54N 118.14W
02/18/2018  M69 MPH          KERN               CA   MESONET

            MESONET STATION BIJC1, BIRD SPRINGS PASS.

0302 PM     NON-TSTM WND GST CACHE CREEK CHP ON 58   35.11N 118.24W
02/18/2018  M45 MPH          KERN               CA   MESONET

            MESONET STATION AU563, CACHE CREEK CHP ON
            58.

0226 PM     NON-TSTM WND GST INDIAN WELLS CANYON     35.69N 117.89W
02/18/2018  M45 MPH          KERN               CA   MESONET

            MESONET STATION IWLC1, INDIAN WELLS CANYON.

0214 PM     NON-TSTM WND GST JAWBONE CANYON          35.29N 118.23W
02/18/2018  M54 MPH          KERN               CA   MESONET

            MESONET STATION JWBC1, JAWBONE CANYON.

0210 PM     NON-TSTM WND GST BEAR PEAK               35.88N 118.08W
02/18/2018  M77 MPH          TULARE             CA   MESONET

            MESONET STATION BPKC1, BEAR PEAK.

0200 PM     NON-TSTM WND GST WALKER PASS             35.66N 118.06W
02/18/2018  M46 MPH          KERN               CA   MESONET

            MESONET STATION ONYC1, WALKER PASS.

0154 PM     NON-TSTM WND GST RIDGECREST 7SSW         35.59N 117.69W
02/18/2018  M47 MPH          KERN               CA   MESONET

            MESONET STATION C9067, RIDGECREST 7SSW.

&&
Local storm report, Feb 18, 5:22 PM PST, 2 hours 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HANFORD CA
522 PM PST SUN FEB 18 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0421 PM     NON-TSTM WND GST CHINA LAKE              35.69N 117.69W
02/18/2018  M49 MPH          KERN               CA   ASOS

            ASOS STATION NID, CHINA LAKE.

&&
Local storm report, Feb 18, 6:02 PM PST, 1 hour 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HANFORD CA
602 PM PST SUN FEB 18 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0532 PM     NON-TSTM WND GST BLUE MAX                35.71N 117.97W
02/18/2018  M75 MPH          KERN               CA   MESONET

            MESONET STATION TR518, BLUE MAX.

&&

Event by event

5 high wind, 1 strong wind. Local standard time, as filed.

Strong Wind, Se S.J. Valley

When
February 18, 7:37 PM PST
Where
Se S.J. Valley forecast zone
Measured
39 kt (45 mph) estimated gust
Property damage
$5,000
Reported by
Law Enforcement

California Highway Patrol reported a downed telephone pole and a downed tree blocking both lanes on E. Houston Ave. East of McAuliff St. in Visalia.

High Wind, Kern Cty Mtns

When
February 18, 9:27 PM PST
Where
Kern Cty Mtns forecast zone
Measured
63 kt (72 mph) measured gust
Reported by
RAWS

The Bird Springs Pass RAWS measured a peak wind gust of 73 mph.

High Wind, Tulare Cty Mtns

When
February 18, 10:10 PM PST
Where
Tulare Cty Mtns forecast zone
Measured
70 kt (81 mph) measured gust
Reported by
RAWS

The Bear Peak RAWS measured a peak wind gust of 81 mph.

High Wind, Indian Wells Vly

When
February 19, 12:26 AM PST
Where
Indian Wells Vly forecast zone
Measured
71 kt (82 mph) measured gust
Reported by
RAWS

The Indian Wells Canyon RAWS measured a peak wind gust of 82 mph.

High Wind, Kern Cty Mtns

When
February 19, 1:14 AM PST
Where
Kern Cty Mtns forecast zone
Measured
55 kt (63 mph) measured gust
Reported by
RAWS

The Jawbone Canyon RAWS measured a peak wind gust of 63 mph.

High Wind, Kern Cty Mtns

When
February 19, 2:32 AM PST
Where
Kern Cty Mtns forecast zone
Measured
72 kt (83 mph) measured gust
Reported by
RAWS

The Blue Max RAWS measured a peak wind gust of 83 mph.

What these are

Strong Wind
Non-thunderstorm winds below high wind criteria that nonetheless caused damage or casualties.
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 2018Every state in 2018This day in weather historyWarnings in California, February 2018

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: 731083, 731086, 731084, 731088, 731087, 731085.