National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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TRUCKEE RIVER - BELOW DERBY DAM (TBDN2)
Latitude: 39.58º NLongitude: 119.44º WElevation: 4200 Feet
Location: Storey County in NevadaBulletin Group: Eastern SierraRiver Group: Eastern Sierra
Issuance Time: Jul 09 2025 at 7:43 AM PDTNext Issuance: Jul 10 2025 at 9:00 AM PDT
Action/Monitor: 10.0 FeetMinor Flood: 11.0 FeetModerate Flood: N/A Major Flood: N/A

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

Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.
Location Photographs
ESRI™ Locator Map
Flood Impacts
11.0 Feet Flood Stage, Minor flooding. Near gate capacity at Derby Dam, may require the removal of soft plug on the overflow channel
Official 7 Day National Weather Service Forecast   (NVZ003)
Tonight: Clear. Lows 53 to 63. West winds 10 to 15 mph.

Thursday: Sunny. Areas of smoke in the morning. Highs 89 to 94. Light winds becoming northeast around 10 mph in the afternoon.

Thursday Night: Clear. Lows 57 to 67. North winds around 10 mph in the evening becoming light.

Friday: Sunny. Highs 93 to 98. Light winds becoming northeast around 10 mph in the afternoon.

Friday Night: Clear. Lows 60 to 70. Northwest winds 10 to 15 mph.

Saturday: Sunny. Highs 96 to 101.

Saturday Night: Clear. Lows 61 to 71.

Sunday through Wednesday: Clear. Highs 98 to 103. Lows 62 to 72.
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.