CNRFC - Hydrology - Observed River/Reservoir Conditions

Start of River Group

MARYS RIVER - ABOVE HOT SPRINGS CREEK (MHSN2)

Latitude: 41.25º N	Longitude: 115.26º W	Elevation: 5504 Feet
Location: Elko County in Nevada		Bulletin Group: Humboldt		River Group: Humboldt

Action/Monitor: 5.5 Feet

Minor Flood: 6.0 Feet

Moderate Flood: 7.5 Feet

Major Flood: 9.0 Feet

Plot Type:

Observed Data Credit
	Raw streamflow data is provided by the US Geological Survey (USGS). View US Geological Survey (USGS) Data for this station location.

Historical Mean Daily Stage/Flow Data
Water Year	Peak Discharge (cfs)	Stage (feet)	Date
Most Recent 5 Years
2025*	266	4.33	May 14, 2025
2024*	547	5.91	Apr 28, 2024
2023*	849	7.30	May 5, 2023
2022*	179	4.38	May 30, 2022
2021*	91	3.86	May 23, 2021
Historical High Stage/Flow Events (Period of Record - Oct 1943-Sep 1980 and Oct 1981 to Present) - Ranked by Flow
1962*	4,210	7.63	Feb 12, 1962
1984*	2,110	8.39	May 15, 1984
2006*	1,330	7.48	Apr 17, 2006
1952*	1,250	6.57	Apr 29, 1952
1983*	1,040	6.79	May 30, 1983
1943*	1,030	7.20	Jan, 1943**
* Discharge affected to unknown degree by regulation or diversion ** Exact date of occurrence is unknown.

Location Photographs
Upstream Photo	Gage House Photo	Downstream Photo

ESRI™ Locator Map

Flood Impacts
9.0 Feet	Major flooding occurs on the Marys River with many homes in Deeth damaged. Transportation and communication are severely disrupted. Major damage to roads, railroads, and structures occurs, with water over a foot deep on some roads and railroads. Severe erosion and sediment deposition occurs. This is similar to the flood of February 12, 1962.
8.4 Feet	Moderate to major flooding occurs on the lower Marys River with significant damage to roads, railroads, and structures. Cattle can be mired or drowned. Much of Deeth's roads and structures are flooded. This is about 1083 cfs or similar to the flood of May 15, 1984.
7.6 Feet	Moderate flooding occurs on lower Marys River, with damage to roads, railroads, and structures. Cattle can be mired or drowned. Streets and homes in Deeth flood. This is about 875 cfs or similar to the flood of may 20, 2005.
6.8 Feet	Minor to moderate lowland flooding occurs on lower Mary's River, with flooding of many rural roads near the river. Some streets in Deeth flood, as well as basements and foundations of a few homes. This is about 691 cfs.
6.0 Feet	Flood stage, about 529 cfs. Minor lowland flooding on lower Marys River, with minor flooding of rural roads throughout area. Some minor flooding of streets in Deeth.
5.0 Feet	This is monitoring stage or about 360 cfs. No flooding occurs within the reach.

Official 7 Day National Weather Service Forecast (NVZ031)

rest of Tonight: Mostly cloudy with a 20 percent chance of rain. Near steady temperature in the lower 40s. Southeast winds 5 to 10 mph with gusts to around 25 mph.

Sunday: Partly sunny with a 50 percent chance of rain. Highs 47 to 55. South winds 10 to 20 mph.

Sunday Night: Mostly cloudy. Rain and chance of snow in the evening, then chance of rain and snow after midnight. Snow accumulation up to 3 inches. Lows in the lower 30s. Southwest winds 10 to 20 mph. Chance of precipitation 90 percent.

Monday: Partly sunny. Chance of rain and snow in the morning, then chance of rain in the afternoon. Highs 44 to 52. South winds 5 to 15 mph. Chance of precipitation 50 percent.

Monday Night: Mostly cloudy with a 50 percent chance of rain and snow. Lows in the lower 30s. East winds up to 10 mph.

Tuesday: Partly sunny with a 50 percent chance of rain and snow. Highs 43 to 51.

Tuesday Night: Mostly cloudy with a 50 percent chance of rain and snow. Lows in the upper 20s.

Wednesday: Partly sunny. Chance of snow and rain in the morning, then chance of snow in the afternoon. Highs 38 to 44. Chance of precipitation 50 percent.

Wednesday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 20s.

Thursday: Partly sunny. Chance of snow in the morning, then chance of snow and rain in the afternoon. Highs 38 to 44. Chance of precipitation 40 percent.

Thursday Night: Mostly cloudy. Lows in the mid 20s.

Friday: Mostly sunny. Highs 39 to 45.

Friday Night: Partly cloudy. Lows in the mid 20s.

Saturday: Mostly sunny. Highs 40 to 46.

Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS Elko Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.

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