Nevada, 2024

Avalanche and Flood in Nevada, February 4 to 6, 2024

February 4 to 6, 2024 · NWS VEF · 3 events in 2 counties and zones

The remnants of an atmospheric river which hit California hard brought locally heavy rain and snow to southern Nevada.

Where it happened

Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. 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

Open the live radar over this ground

The toll

Deaths
0
Injuries
1
Property damage
$51,000
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 VEF wrote it up.

The remnants of an atmospheric river which hit California hard brought locally heavy rain and snow to southern Nevada.

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 Las Vegas, NV wrote its last area forecast discussion before the first event at Feb 4, 3:05 AM PST, 6 hours 55 minutes earlier.

Area forecast discussion, Feb 4, 3:05 AM PST, 6 hours 55 minutes before
Area Forecast Discussion
National Weather Service Las Vegas NV
305 AM PST Sun Feb 4 2024

.SYNOPSIS...A strong Pacific storm moving inland today will
initially bring heavy snow to the southern Sierra and persistent
moderate to heavy rain will impact Inyo County this afternoon and
tonight then precipitation will spread over southern Nevada and
northwest Arizona Monday and Tuesday. Unsettled weather and chances
for showers will continue Wednesday through Friday as additional
disturbances drop down from the Pacific Northwest. A dry weather
pattern will likely return next weekend.
&&

.SHORT TERM...Today through Monday night.

The latest observations and model guidance indicate the ingredients
continue to come together for a major storm for our region as a long
wave positive-tilted trough off the West Coast directs an
atmospheric river into central and southern California today. The
initial impacts for our forecast area will be the southern Sierra
and much of the Owens Valley and Death Valley National Park today
tonight as they remain in the path of the main precipitation plume.
There is an initial moisture appendage extending over southeast
California and southern Nevada this morning which will produce some
light rain and light snow in the Spring Mountains, but the potential
for heavy snow in the Spring Mountains will hold off until tonight
and Monday as the atmospheric river slowly slides to the southeast
and focuses over Southern California and Southern Nevada. The latest
model solutions are in fairly good agreement that this deep moisture
will persist over southern California and southern Nevada Monday
into Tuesday and this expands the risk for flash flooding from
excessive rainfall across most of San Bernardino County and southern
Nye County Monday morning through Tuesday afternoon. The Flood
Watch, initially issued for the Owens Valley and Death Valley, has
been expanded across those zones for that time period. Also, the
Flood Watch has been extended for Death Valley National Park until
Tuesday afternoon.

The quasi-stationary moisture plume streaming into the Spring
Mountains tonight through at least Tuesday morning also increases
the likelihood to about 75 percent of at least 4 feet of total
snowfall for elevations around 8000 feet in Kyle and Lee Canyons and
this is indicated in our snow amount gridded forecast. Snow levels
will initially be around 6500-7000 feet for the Spring
Mountains/Sheep Range tonight through Monday night then will lower
to around 6000 feet on Tuesday.

The other noteworthy impact of the incoming storm is a broad area of
south-southeast winds gusting 40-50 mph encompassing much of
northern San Bernardino County, Inyo, Esmeralda and Nye counties
this afternoon and tonight. The Wind Advisory initially issued for
the Owens Valley, has been expanded across these areas for that time
period.

High and low temperatures will not change much today through Monday.

.LONG TERM...Tuesday Through Saturday

The upper level trough will proceed inland through the middle of the
week. Atmospheric moisture will continue to stream around the edge
of the feature with PWAT values 200 percent of normal, or .6 to .8
inches, through Tuesday within the forecast area. The wettest day
for Las Vegas may be Tuesday. Long range guidance suggests a band of
precipitation will retrograde west then slowly move east across
southern Nevada and northwest Arizona. There is a 40 to 60 percent
chance of the Las Vegas Valley receiving half an inch of rain on
Tuesday. Wide swaths of Lincoln and Mohave counties have a 60 to 80
percent chance of at least half an inch of rain as well. The
position of this band and a constant 40 knot 700 mb jet will also
create a favorable environment for an additional 1 to 1.5 feet of
snow on the Spring Mountains and Sheep Range. The Winter Storm
Severity Index indicates Major winter storm impacts through Tuesday.
For these reasons, the Winter Storm Warning continues through
Tuesday for those areas. High terrain in Lincoln County may also be
in a favorable position for additional snowfall as well.

Precipitation should taper off in the middle of the week as the
trough continues to progress east and a zonal pattern sets up over
the Southwest through Friday. Atmospheric River moisture will
struggle to reach the forecast area and PWATs will decrease closer
to seasonal averages during this time. Therefore, lighter POPs
remain in the forecast through the end of the week. Details
regarding precipitation later this week will become more apparent
with upcoming forecasts.
&&

.AVIATION...For Harry Reid...Light westerly winds will become light
and variable later this morning before picking up and shifting to
the southeast. 20-25 knot wind gusts will accompany this wind shift.
These breezy southeasterly winds will continue into the evening
hours before wind gusts drop of and winds shift to a more southerly
direction. A band of light precipitation will bring vicinity showers
to the valley beginning around 11 UTC. These showers will hang
around the valley through mid-morning before clearing out. There is
a low probability that these showers will move over the terminal
directly. Should this happen, rain from these showers would be
light. As the vicinity showers move through they will be accompanied
by FEW to SCT lower clouds and CIGS dropping from 10 to 8 kft. CIGS
will remain around 8 kft through the evening hours.

For the rest of southern Nevada, northwest Arizona and southeast
California...A band of light precipitation will work its way
northeasterly resulting in vicinity showers, 5 to 8 kft CIGS, and
potentially light rain at KDAG, KVGT, and KHND through mid-morning.
With the exception of KBIH, winds at the remaining TAF sites will
remain relatively light through mid-morning, when winds will shift
to the southeast and pickup. 15-25 knot wind gusts will accompany
this wind shift. These breezy southeasterly winds will continue into
the evening hours. Once the aforementioned band of precipitation
clears out of the TAF vicinities, CIGS will improve to around 8 to
10 kft where they will remain through the evening hours. For KBIH,
breezy southeasterly winds and vicinity showers will become gusty
southeasterly winds and rain beginning around 15Z. These 20-40 knot
southeasterly wind gusts will continue into the evening hours.
Shortly after light rain begins at KBIH, precipitation intensity
will increase, visibility will drop to 4SM and CIGS will drop 1.5 to
2 kft. These conditions will persist into the evening hours.
&&

.SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report
any significant weather or impacts according to standard operating
procedures.
&&

SHORT TERM...Adair
LONG TERM...Meltzer
AVIATION...Stessman

For more forecast information...see us on our webpage:
https://weather.gov/lasvegas or follow us on Facebook and Twitter

The radar

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

Open the radar archive at this moment

Event by event

1 heavy snow, 1 avalanche, 1 flood. Local standard time, as filed.

Heavy Snow, Spring Mountains

When
February 4, 10:00 AM PST to February 6, 7:00 PM PST
Where
Spring Mountains forecast zone
Reported by
SNOTEL
Coordinates
37.129, -115.743 (the zone’s center; the record gives no point)

The Rainbow Canyon SNOTEL estimated 31 inches of new snow. Highway 156 was closed at Highway 95 early in the morning of the 6th.

Avalanche, Spring Mountains

When
February 5, 1:40 PM PST
Where
Spring Mountains forecast zone
Injuries
1 direct, 0 indirect
Property damage
$50,000
Reported by
County Official
Coordinates
37.129, -115.743 (the zone’s center; the record gives no point)

An avalanche occurred above the ski resort in Lee Canyon. One person suffered a broken arm, and power was knocked out to 462 customers.

Flood, Clark

When
February 5, 2:27 PM PST to 6:00 PM PST
Where
Clark County, 1.67 mi SSW of Red Rock Canyon to 1.59 mi SSW of Red Rock Canyon
Cause
Heavy Rain
Property damage
$1,000
Reported by
Park/Forest Service
Coordinates
36.117, -115.458

The Red Rock Scenic Loop was closed due to flooding at Oak Creek.

What these are

Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.
Avalanche
A mass of snow sliding down a mountainside that caused a death, an injury or damage.
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 Nevada in 2024Every state in 2024This day in weather historyWarnings in Nevada, February 2024

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: 1162694, 1162695, 1162696.