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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 | |||
2021* |
178 | 2.26 | Jan 27, 2021 |
2020* |
696 |
4.31 |
Dec 7, 2019 |
2019* |
9,570 |
19.50 |
Feb 27, 2019 |
2018* | 3,970 |
11.31 |
Mar 22, 2018 |
2017* | 9,340 | 19.20 | Feb 7, 2017 |
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: Showers likely and a slight chance of thunderstorms in the afternoon. Highs in the 50s. Southeast winds 10 to 20 mph. Tonight: Breezy. Rain in the evening. A slight chance of thunderstorms. A chance of showers after midnight. Lows in the 40s to lower 50s. Southwest winds 20 to 30 mph. Gusts up to 45 mph in the evening. Sunday: Mostly cloudy. A chance of showers and a slight chance of thunderstorms in the morning, then a chance of rain in the afternoon. Highs in the lower to mid 50s. West winds 10 to 20 mph. Sunday Night: Mostly clear in the evening then becoming mostly cloudy. Lows in the 30s to lower 40s. Northwest winds 10 to 20 mph. Monday: Mostly cloudy in the morning then becoming sunny. Patchy frost in the morning. Highs in the mid 50s to lower 60s. Northwest winds 5 to 10 mph. Monday Night: Mostly clear. Lows in the mid 30s to lower 40s. Tuesday and Tuesday Night: Partly cloudy. Highs in the 50s to mid 60s. Lows in the upper 30s to mid 40s. Wednesday through Thursday Night: Mostly clear. Highs in the 50s to upper 60s. Lows in the 30s to mid 40s. Friday: Partly cloudy. Highs in the upper 50s to mid 60s. |
Impacts - E19 Information | |
16.0 Feet | Monitor Stage. WFO Monterey/San Francisco Bay Area may issue a Flood Watch to cover Napa Valley region flood potential at this stage. |
18.0 Feet | 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. |
20.0 Feet | 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. |
22.0 Feet | Major flooding throughout the upper Napa Valley with most roads inundated, making travel extremely difficult and unsafe. |
24.0 Feet | Disastrous flooding. Widespread flooding across the upper Napa Valley with travel essentially impossible. The peak water level during the flood of 12/31/2005 measured 23.6 feet. |
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. |