Please Note: 1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.
2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.
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*
1,480
4.93
May 11, 2025
2024*
2,150
5.72
May 18, 2024
2023*
5,540
8.49
Dec 31, 2022
2022*
3,710
6.70
Oct 25, 2021
2021*
994
4.36
May 6, 2021
Historical High Stage/Flow Events (Period of Record - Sept 1960 to Present) - Ranked by Flow
1997*
18,900
11.78
Jan 24, 1970
1963*
15,100
8.21**
Jan 31, 1963
2017*
11,700
9.98
Jan 8, 2017
2006*
10,300
9.09
Dec 31, 2005
1986*
9,520
8.79
Mar 8, 1986
1965*
9,100
7.20**
Dec 23, 1964
* Discharge affected to unknown degree by regulation or diversion
** Prior to October 1967, datum change with a difference of -2.0 ft must be applied to all data before date to convert to current datum.
Major impacts to transportation, communication, power and water systems. In excess of January 1997 event.
11.0 Feet
Major Flood Stage. Major impact to transportation including Highways 89 and 4. Communication, water and power systems may be impacted. Significant inundation of low lying rangelands.
10.0 Feet
Moderate Flood Stage. Moderate flooding impacting Carson River Resort campground, and potential for significant bank erosion causing road damage along Highways 89 and 4.
9.0 Feet
Minor Flood Stage. Minor flooding from Monitor Creek to Bryant Creek including impacts to river campgrounds and possible impacts to highway due to bank erosion. Similar to 1/8/17, 2/10/17 and 12/31/2005.
8.0 Feet
Monitor Stage. No flooding from from Monitor Creek to Bryant Creek, river near bankfull and may require precautionary measures to move resources away from the river. Additional impacts to recreational river users.
Official 7 Day National Weather Service Forecast (CAZ072)
Today: Areas of freezing fog in the morning. Partly cloudy with a slight chance of snow in the morning, then sunny in the afternoon. Highs 30 to 35. Southwest winds around 10 mph in the morning becoming light.
Tonight: Clear in the evening then becoming partly cloudy. Lows 14 to 24. Light winds.
Sunday: Mostly cloudy in the morning then clearing. Highs 30 to 40. Light winds becoming east around 10 mph in the afternoon.
Sunday Night: Clear. Lows 7 to 17. East winds 10 to 15 mph. Ridge gusts up to 50 mph.
Monday: Sunny. Highs 34 to 44. East winds 10 to 15 mph.
Monday Night: Clear. Lows 13 to 23.
Tuesday and Tuesday Night: Clear. Highs 39 to 49. Lows 18 to 28.
Wednesday: Sunny in the morning then becoming partly cloudy. Highs 43 to 53.
Wednesday Night: Partly cloudy in the evening, then mostly cloudy with a slight chance of rain and snow after midnight. Lows 22 to 32.
New Years Day: Mostly cloudy with a chance of snow and rain. Highs 40 to 50.
Thursday Night: Snow and rain likely. Lows 24 to 34.
Friday: Snow likely. Highs 36 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 Reno 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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