California, 2023

Flooding in California, April 17 to 30, 2023

April 17 to 30, 2023 · NWS HNX · 3 events in 3 counties and zones

Increased releases at Pine Flat dam due to heavy snow melt runoff resulted in flooding near the Kings River downstream of Pine Flat Dam. The increased runoff produced flooding at Lindy's Landing campground near Reedley, and the Kings River Golf and Country Club near Kingsburg.

Where it happened

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  • Heat and drought
  • Cold
  • Fire, smoke and dust
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  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
3

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.

Increased releases at Pine Flat dam due to heavy snow melt runoff resulted in flooding near the Kings River downstream of Pine Flat Dam. The increased runoff produced flooding at Lindy's Landing campground near Reedley, and the Kings River Golf and Country Club near Kingsburg.

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 17, 2:06 PM PST, 4 hours 54 minutes earlier.

Area forecast discussion, Apr 17, 2:06 PM PST, 4 hours 54 minutes before
Area Forecast Discussion
National Weather Service Hanford CA
306 PM PDT Mon Apr 17 2023

.SYNOPSIS...
Cooler temperatures will begin the week as a disturbance passes
through the region. Precipitation will push over the Sierra Nevada
near Yosemite on Tuesday as the southern end of the disturbance
clips Central California. Another warming trend will start Thursday
and temperatures could rise to the low to mid 80's in the San
Joaquin Valley by the weekend.

&&

.DISCUSSION...
An upper level low pressure system swinging into the Pacific
Northwest region is pushing a trough into central California and
we are seeing the beginning of a cooling trend. Temperatures are
on track to top out right around normal today, except a bit below
normal in the northern portions of our area. A deck of mid and
high clouds are drifting southward into our area.

As the trough continues to push through the region, precipitation
will impact the Sierra near Yosemite by early morning Tuesday but
QPF and snowfall amounts will not be significant. Northwesterly
gusty winds will also pick up with the passing trough, with gusts
around 55 mph likely over the mountain ridges and through and
below the mountain passes in Kern County. Wind Advisories are in
effect for the Mojave Desert Slopes and the Kern County desert for
these gusty winds through 2 AM Wednesday morning.

The more notable effect from the trough passage will be a couple
of days of cooler temperatures. Tuesday will see high temperatures
around 6-9 degrees below normal, and just a degree or so higher on
Wednesday as a high pressure ridge begins to build into the
region.

Model ensemble solutions amplify the ridge along the west coast
during the latter part of the week, and we will see high
temperatures climb to around 10 degrees above normal for the
weekend. Most San Joaquin Valley locations will reach into the mid
80s during the weekend.Another approaching low pressure system
will weaken and displace the ridge, beginning another cooldown for
Monday.

&&

.AVIATION...
Winds will gust to around 45 kt over mountain ridges and through and
below the passes in Kern County, leading to areas of blowing dust in
desert areas. Otherwise, VFR conditions will prevail across central
California 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 high

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

&&

.HNX WATCHES/WARNINGS/ADVISORIES...
Wind Advisory until 2 AM PDT Wednesday for CAZ338.

Wind Advisory until 2 AM PDT Wednesday for CAZ337-339.

&&

public...JEB
aviation....JEB

weather.gov/hanford

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

3 flood. Local standard time, as filed.

Flood, Fresno

When
April 17, 7:00 PM PST to April 30, 11:59 PM PST
Where
Fresno County, 2.34 mi NW of Sanger Wndr Vly Arpt to 2.94 mi SE of Reedley
Cause
Planned Dam Release
Reported by
Emergency Manager
Coordinates
36.828, -119.324

Fresno, Kings and Tulare County Emergency Managers reported flooding along the Kings River downstream from Pine Flat Dam as a result of increased releases prompted by increased runoff from snow melt.

Flood, Tulare

When
April 17, 7:00 PM PST to April 30, 11:59 PM PST
Where
Tulare County, 3.48 mi W of Delft Colony to 4.5 mi SW of Delft Colony
Cause
Planned Dam Release
Reported by
Emergency Manager
Coordinates
36.515, -119.512

Fresno, Kings and Tulare County Emergency Managers reported flooding along the Kings River downstream from Pine Flat Dam as a result of increased releases prompted by increased runoff from snow melt.

Flood, Kings

When
April 17, 7:00 PM PST to April 30, 11:59 PM PST
Where
Kings County, 9.15 mi NE of Shirley to 2.13 mi NE of Shirley
Cause
Planned Dam Release
Reported by
Emergency Manager
Coordinates
36.498, -119.539

Fresno, Kings and Tulare County Emergency Managers reported flooding along the Kings River downstream from Pine Flat Dam as a result of increased releases prompted by increased runoff from snow melt.

What these are

Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

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

The same day elsewhere

More

Every storm in California in 2023Every state in 2023This day in weather historyWarnings in California, April 2023

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: 1084588, 1084592, 1084593.