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		River Group: Humboldt

Monitor Stage: 5.5 Feet

Flood Stage: 6.0 Feet

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

Historical Stage/Flow Data
Note: Water Year 2025 is currently showing peak daily mean values. These will be updated to instantaneous peaks in the coming months.
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

Official 7 Day National Weather Service Forecast (NVZ031)

Today: Partly sunny early in the morning then clearing. Highs 27 to 33. North winds up to 5 mph.

Tonight: Mostly clear. Lows 13 to 19. Northeast winds up to 5 mph.

Monday: Sunny. Highs 33 to 39. Southeast winds up to 5 mph.

Monday Night: Mostly clear. Lows 18 to 24. Southeast winds up to 5 mph.

Tuesday: Sunny. Highs 39 to 45. Southeast winds up to 5 mph.

Tuesday Night: Mostly clear. Lows 21 to 27.

Wednesday: Mostly sunny. Highs 42 to 50.

Wednesday Night: Mostly cloudy. Lows 24 to 30.

New Years Day: Partly sunny. Highs 42 to 50.

Thursday Night: Mostly cloudy with scattered rain showers and snow showers. Lows 27 to 33. Chance of precipitation 50 percent.

Friday: Partly sunny with scattered rain showers and snow showers. Highs 41 to 47. Chance of precipitation 50 percent.

Friday Night: Mostly cloudy with scattered rain showers and snow showers. Lows in the mid 20s. Chance of precipitation 50 percent.

Saturday: Partly sunny. Scattered snow showers in the morning, then scattered snow showers and rain showers in the afternoon. Highs 39 to 45. Chance of precipitation 50 percent.

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.

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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