California, 2019

Flood and High Wind in California, March 7 to 8, 2019

March 7 to 8, 2019 · NWS HNX · 9 events in 6 counties and zones

Following the departure of the warm and very moist system which brought heavy rain to portions of the area on March 6, a cold upper trough approached the area on March 7 and moved through the region during the morning of March 8. This system provided additional liquid precipitation totals of half an inch to an inch over much of the southern Sierra Nevada with the snow level lowering from 5000…

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
9

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.

Following the departure of the warm and very moist system which brought heavy rain to portions of the area on March 6, a cold upper trough approached the area on March 7 and moved through the region during the morning of March 8. This system provided additional liquid precipitation totals of half an inch to an inch over much of the southern Sierra Nevada with the snow level lowering from 5000 feet during the evening of March 7 to 3500 feet by the afternoon of March 8. While precipitation amounts were generally lower in the San Joaquin Valley and the Kern County Mountains, a few locations impacted by heavier showers or thunderstorms on March 8 received over half an inch. Several locations in the higher elevations of the southern Sierra Nevada (above 7000 feet) picked up between 6 an 12 inches of new snow between the evening of March 7 and the afternoon of March 8. There were some reports of funnel clouds in the San Joaquin Valley although there were no confirmed reports of tornadoes from this system. There were several reports of wind gusts exceeding 45 mph in the Kern County Mountains and Deserts and a few low impact indicator sites measured gusts exceeding 70 mph. This cold system moved out of the area during the evening of March 8 with a drier airmass moving into the area behind it.

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 Mar 7, 3:05 PM PST, 2 hours 5 minutes earlier.

Area forecast discussion, Mar 7, 3:05 PM PST, 2 hours 5 minutes before
Area Forecast Discussion
National Weather Service San Joaquin Valley - Hanford CA
305 PM PST Thu Mar 7 2019

.SYNOPSIS...
Another disturbance brings light valley rain and mountain snow
through tomorrow morning. A break from precip on Saturday before
precip chances return Sunday. Precip again on Tuesday afternoon
through Wednesday morning as another system impacts the region.

&&

.DISCUSSION...
An upper level disturbance is bringing a few showers into the
valley this afternoon. A thunderstorm or two is conceivable
through 6 PM in the valley north of Kern County. Snow levels are
currently running around 5,000 feet, but will drop to around 3,000
feet as cold air aloft moves into the region. This has promoted
us to issue a few Winter Weather products. First off, a Winter
Weather Advisory will be in effect for the Sierra Nevada from
Yosemite to Kings Canyon and Tulare County Mountains from 4 PM
this afternoon through 10 AM Friday. Another Winter Weather
Advisory will be in effect for the Mariposa, Madera, Fresno, and
Tulare County Foothills all above 3,000 feet from 4 PM this
afternoon through 10 AM Friday. Snowfall accumulations in the
foothills above 3,000 feet could be as much as 3 inches, while
accumulations in the mountains could be as high as 9 inches.

Another winter weather impact will be the possibility of snow on
the Grapevine tonight and tomorrow morning. As snow levels drop to
around 3,000 feet, there is concern that travel conditions may
deteriorate due to black ice and snow. Therefore, we have also
issued a Winter Weather Advisory for the Kern County Mountains
above 3,000 feet starting at 8 PM tonight through noon Friday. Up
to 2 inches of snow is possible tonight and tomorrow morning on
Interstate 5 through Lebec, as well as Highway 58 through
Tehachapi Pass. The greatest impacts in the Kern County Mountains
will likely occur between 3 AM and 8 AM tomorrow.

A few showers may linger/upslope through Friday. Post frontal
winds will also be quite strong in the Mojave Desert, with wind
gusts as high was 55 mph. A Wind Advisory will be valid from 10 AM
through 10 PM Friday in the Mojave Desert. By Saturday, models
are in agreement that Central California will have zonal flow
aloft, which will keep us dry. Saturday afternoon into Sunday, a
"coastal hugger" will drop down from the Gulf of Alaska and will
reintroduce the chance of precipitaton for the CWA Sunday. Model
progs are not showing much QPF for the forecast area with this
system, as the bulk of the precip will likely remain offshore.

Another break in precipitation will likely occur Monday through
Tuesday morning, before another disturbance aloft brings chances
of precip across Central California for Tuesday afternoon and
early Wednesday morning. Light rain in the valley and a few inches
of mountain snow could occur with this system. Wednesday and
Thursday will likely be dry as northwest flow aloft dominates over
the region. EPS and GEFS progs are showing a high-amplitude ridge
of high pressure aloft building over the EPAC. This ridge of high
pressure aloft will likely bring us a more settled, calmer
weather pattern in the extended.

&&

.AVIATION...
Local MVFR in the San Joaquin Valley and southern Sierra foothills
in low clouds and showers. Widespread mountain obscuring IFR due to
low clouds and precipitation over the Southern Sierra Nevada and
Tehachapi Mountains. A few thunderstorms possible from 21z through
02z Friday in the valley north of Kern County. Otherwise VFR
conditions will prevail in the Central CA Interior for 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.html for additional information
an/or to provide feedback.

&&

.HNX Watches/Warnings/Advisories...
Winter Weather Advisory until 10 AM PST Friday CAZ096-097.

Winter Weather Advisory from 8 PM this evening to noon PST
Friday ABOVE 3000 FEET FOR THE CAZ095.

Wind Advisory from 10 AM to 10 PM PST Friday CAZ095-098-099.

Winter Weather Advisory until 10 AM PST Friday ABOVE 3000 FEET
FOR THE CAZ093-094.

&&

public...Bollenbacher
avn/fw...Bollenbacher
synopsis...Bollenbacher

weather.gov/hanford

In the hours before

Local storm report, Mar 7, 4:30 PM PST, 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HANFORD CA
430 PM PST THU MAR 7 2019

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

0150 PM     FUNNEL CLOUD     9 NE MADERA             37.05N 119.94W
03/06/2019                   MADERA             CA   STORM CHASER

            FUNNEL CLOUD VIDEO SHARED WITH MEDIA AND
            OFFICE BY STORM CHASER.

&&

KM

The radar

The San Joaquin Valley radar (KHNX), 8 km away, was scanning. The volume nearest the first event began at 01:08 UTC.

Open the radar archive at this moment

Event by event

6 high wind, 2 funnel cloud, 1 flood. Local standard time, as filed.

Funnel Cloud, Kings

When
March 7, 5:10 PM PST to 5:20 PM PST
Where
Kings County, 0.89 mi SE of Shirley
Reported by
NWS Employee
Coordinates
36.390, -119.640

An NWS employee spotted a funnel cloud 4N Hanford which remained well above the ground.

Flood, Tulare

When
March 8, 5:47 AM PST to 9:47 AM PST
Where
Tulare County, 3.48 mi SW of Springville to 3.62 mi SW of Springville
Cause
Heavy Rain
Reported by
Law Enforcement
Coordinates
36.100, -118.870

California Highway Patrol reported flooding at the intersection of State Route 190 and Pleasant Oaks Dr. 4SW Springville.

High Wind, Kern Cty Mtns

When
March 8, 6:14 AM PST
Where
Kern Cty Mtns forecast zone
Measured
63 kt (72 mph) measured gust
Reported by
RAWS

The Jawbone Canyon RAWS reported a peak wind gust of 73 mph.

High Wind, Indian Wells Vly

When
March 8, 7:26 AM PST
Where
Indian Wells Vly forecast zone
Measured
55 kt (63 mph) measured gust
Reported by
RAWS

The Indian Wells Canyon RAWS reported a peak wind gust of 63 mph.

High Wind, Kern Cty Mtns

When
March 8, 7:32 AM PST
Where
Kern Cty Mtns forecast zone
Measured
52 kt (60 mph) measured gust
Reported by
RAWS

The Blue Max RAWS reported a peak wind gust of 60 mph.

High Wind, Tulare Cty Mtns

When
March 8, 10:10 AM PST
Where
Tulare Cty Mtns forecast zone
Measured
53 kt (61 mph) measured gust
Reported by
RAWS

The Bear Peak RAWS reported a peak wind gust of 61 mph.

Funnel Cloud, Tulare

When
March 8, 10:25 AM PST to 10:35 AM PST
Where
Tulare County, 2.15 mi NNW of Nanceville
Reported by
Broadcast Media
Coordinates
36.100, -119.080

Several media reports of a cold air funnel northwest of Porterville.

High Wind, Kern Cty Mtns

When
March 8, 3:27 PM PST
Where
Kern Cty Mtns forecast zone
Measured
64 kt (74 mph) measured gust
Reported by
RAWS

The Bird Springs Pass RAWS reported a peak wind gust of 74 mph.

High Wind, Se Kern Cty Desert

When
March 8, 10:40 PM PST
Where
Se Kern Cty Desert forecast zone
Measured
52 kt (60 mph) measured gust
Reported by
Mesonet

Mojave Warren Siding reported a peak wind gust of 60 mph.

What these are

Funnel Cloud
A rotating column of cloud extending from a thunderstorm that did not reach the ground.
Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
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 2019Every state in 2019This day in weather historyWarnings in California, March 2019

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: 802321, 802320, 802316, 802318, 802317, 802313, 802322, 802314, 802319.