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Latitude: 38.51º N | Longitude: 122.45º W | Elevation: 195 Feet | |
Location: Napa County in California | River Group: Russian Napa |
Monitor Stage: 16.0 Feet | Flood Stage: 18.0 Feet |
Observed Data Credit | |
![]() | Raw streamflow data is provided by the US Geological Survey (USGS). |
Historical Stage/Flow Data |
|||
Water Year
|
Peak Discharge (cfs)
|
Stage (feet)
|
Date
|
Most Recent 5 Years | |||
2024* |
5,290 |
14.07 |
Feb 4, 2024 |
2023* | 7,150 |
16.71 |
Jan 9, 2023 |
2022* | 7,560 | 16.82 | Oct 24, 2021 |
2021* |
178 | 2.26 | Jan 27, 2021 |
2020* |
696 |
4.31 |
Dec 7, 2019 |
Historical High Stage/Flow Events (Period of Record - Jun 2000 to Present)* - Ranked by Flow | |||
2006* | 18,300 |
23.61 |
Dec 31, 2005 |
1986 |
16,900*** |
18.52 |
Feb 17, 1986 |
1997 | 13,100 | 17.70 | Jan 1, 1997 |
1956 |
12,600 |
15.17 |
Dec 22, 1955 |
1963 | 12,300 | 15.30 | Jan 31, 1963 |
Location Photographs | ||
ESRI™ Locator Map |
Official 7 Day National Weather Service Forecast (CAZ506) |
rest of Today: Sunny. Highs in the upper 60s to mid 80s. Southwest winds 5 to 15 mph. Tonight: Mostly clear in the evening then becoming mostly cloudy. Areas of fog after midnight. Lows in the 40s to mid 50s. Southwest winds 5 to 15 mph. Monday: Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the mid 60s to lower 80s. Southwest winds 10 to 20 mph. Monday Night: Mostly clear in the evening then becoming mostly cloudy. Areas of fog after midnight. Lows in the upper 40s to mid 50s. Southwest winds 10 to 20 mph. Tuesday: Mostly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the mid 60s to lower 80s. Southwest winds 5 to 15 mph. Tuesday Night: Clear in the evening then becoming partly cloudy. Patchy fog. Lows in the upper 40s to mid 50s. Wednesday: Mostly cloudy in the morning then becoming sunny. Highs in the 70s to 80s. Wednesday Night: Clear. Lows in the 50s to lower 60s. Thursday through Friday: Mostly clear. Highs in the upper 70s to lower 90s. Lows in the 50s to lower 60s. Friday Night: Mostly clear except patchy fog. Lows in the 50s. Saturday: Partly cloudy in the morning then becoming sunny. Highs in the 70s to 80s. |
Flood Impacts | |
24.0 Feet | Disastrous Flooding. Widespread flooding across upper Napa Valley with travel essentially impossible. The peak water level during the flood of 12/31/2005 measured 23.6 feet. |
22.0 Feet | Major Flood Stage. Major flooding throughout the upper Napa Valley with most roads inundated, making travel extremely difficult and unsafe. |
20.0 Feet | Moderate Flood Stage. Moderate flooding of the lower portions of Silverado Trail along the reach. Inundation of low lying residential areas along the east river bank in the vicinity of Pope Street Bridge. Secondary and many primary roads inundated; most major cross roads inundated and unsafe to pass. |
18.0 Feet | Minor Flood Stage. Minor flooding of low lying agricultural areas along river begins. Low lying rural residential areas immediately adjacent to the river and some secondary roads affected. |
16.0 Feet | Monitor Stage. WFO Monterey may issue a Flood Watch-based products to cover Napa Valley regional flood potential at this stage. |
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 San Francisco Bay Area-Monterey 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. |