Lahontan Reservoir near Fallon water level

Name: Lahontan Reservoir near Fallon water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

Reservoir, Lahontan Reservoir, Nevada, United States

Directions

Below flood stage

Surface elevation

4,125.56ft Down 0.20 ft over the last 24 hours

Measured Oct 18, 2026, 04:30 PM PDT (1 hour ago)

Water stored: 62,840 acre‑ft

History

7 days

Surface elevation Minor flood stage

What this means

The lake level at Lahontan Reservoir near Fallon reads 4,125.56 ft, about where it usually sits at this time of year.

It is 37.44 ft below the flood stage of 4,163.00 ft.

It is still going down, by 0.20 ft over the past 24 hours. The 30-day range is 4,125.56 ft – 4,126.09 ft.

Many reservoirs are drawn down through summer and fall; most of the refill comes later, with winter rain or spring snowmelt.

Judged against the official flood stage for this gauge. How to read levels

Boating and fishing at Lahontan Reservoir near Fallon

A lake in its usual range is what most ramps, docks and swimming areas are built for.

Conditions at the shore change with the level, so check with the agency that runs the lake before a trip.

What happens at each level

4,164.50 ft: Major flooding, 333 Kaf. Record stage, 6/16/1942, 4164.43'. 328.6 Kaf. Major flooding of campgrounds and low-lying structures around lake.
4,164.20 ft: Moderate flooding of campgrounds and low-lying structures around lake. Elevation reach May 21-23, 1996. 327.4 Kaf.
4,164.00 ft: Moderate flooding of campgrounds and other low-lying structures around lake. 323.5 Kaf. Nearly reached on May 25-26, 1997.
4,163.70 ft: Minor to moderate flooding of campgrounds and some structures around lake. Elevation of top of flashboards, if installed; 313Kaf.
4,163.50 ft: Minor flooding of campgrounds and low lying areas around the lake. Storage on July 25, 1995: 316.3 Kaf.
4,163.00 ft: Flood Stage: 309.5 Kaf. Campgrounds near lake begin to flood.
4,162.00 ft: Spillway crest, maximum capacity of reservoir without flashboards installed. 296Kaf. Water approaching Eureka Street in Silver Springs.
4,125.56 ft: Right now
4,070.00 ft: Record minimum storage since Lahontan Reservoir was completed; September 9/7 1929, 91 acre feet.

Impact statements from the U.S. National Weather Service.

Weather at the gauge

No rain in the last 3 days.

18 Sun 76° 45° – Wind 12 mph

19 Mon 75° 52° – Wind 18 mph

20 Tue 68° 50° 0.01 in Wind 12 mph

21 Wed 64° 49° 0.44 in, 78% Wind 27 mph

22 Thu 60° 49° 0.00 in, 65% Wind 21 mph

23 Fri 61° 47° – Wind 12 mph

24 Sat 63° 49° – Wind 5 mph

Forecast: Open-Meteo

Sunrise 07:11 AM Sunset 06:13 PM Daylight 11 hr, 2 min First quarter 54%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Carson River below Lahontan Reservoir near FallonRiver gauge, Carson River	307 cfs	Normal	−7.0 cfs	1.1 mi
Truckee Canal near HazenCanal gauge, Truckee Canal	19.5 cfs	Low	+4.8 cfs	3.1 mi
Truckee Canal near WadsworthCanal gauge, Truckee Canal	32.4 cfs	Low	−1.1 cfs	16 mi
Truckee River at WadsworthRiver gauge, Truckee River	4.88 ft	Below flood stage	+0.02 ft	16 mi
Carson River near Fort ChurchillRiver gauge, Carson River	1.56 ft	Below flood stage	+0.03 ft	18 mi
Carson River at Tarzyn Road near FallonRiver gauge, Carson River	2.59 ft	Below flood stage	+0.23 ft	19 mi
Walker River near WabuskaRiver gauge, Walker River	3.00 ft	Below flood stage	+0.13 ft	21 mi
Truckee River below Derby Dam near WadsworthRiver gauge, Truckee River	2.56 ft	Below flood stage	+0.05 ft	22 mi

Questions and answers

Is Lahontan Reservoir near Fallon really 4,125.56 ft deep?

No. 4,125.56 ft is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of Lahontan Reservoir near Fallon today?

On Oct 18, 2026, 04:30 PM PDT, the surface elevation was 4,125.56 ft. Down 0.20 ft over the last 24 hours.

Is Lahontan Reservoir near Fallon rising or falling?

Down 0.20 ft over the last 24 hours.

Is the level of Lahontan Reservoir near Fallon normal?

Below flood stage. Judged against the official flood stage for this gauge.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:10312100 (Agency page)
Coordinates: 39.46242, -119.06766 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Surface elevation	4,125.56 ft	2026-10-18 23:30	Provisional
Water stored	62,840 acre‑ft	2026-10-18 23:30	Provisional

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How to cite

U.S. Geological Survey: Lahontan Reservoir near Fallon (usgs:10312100). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/nevada/lahontan-reservoir-near-fallon

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer