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| Latitude: 38.51º N | Longitude: 122.45º W | Elevation: 195 Feet | |
| Location: Napa County in California | River Group: Russian Napa | ||
| Issuance Time: | Jan 30 2023 at 1:24 PM PST | Next Issuance: | Jan 31 2023 at 9:00 AM PST |
| 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 Tonight: Clear. Very windy. Lows in the 30s. North winds 35 to 45 mph. Tuesday: Sunny, breezy. Highs in the mid 50s to lower 60s. North winds 20 to 30 mph and becoming southwest 10 to 20 mph in the afternoon. Tuesday Night: Partly cloudy. Areas of frost after midnight. Lows in the 30s to lower 40s. West winds 5 to 10 mph and becoming northeast 10 to 15 mph after midnight. Wednesday: Mostly cloudy. Areas of frost in the morning. Highs in the 50s. East winds 5 to 15 mph. Wednesday Night: Mostly cloudy. Lows in the mid 30s to lower 40s. East winds 10 to 20 mph. Thursday: Cloudy. A slight chance of rain. Highs in the 50s. Thursday Night: Rain likely. Lows in the 40s. Friday: Mostly cloudy. A chance of rain. Highs in the 50s. Friday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 30s to mid 40s. Saturday: Mostly cloudy. A slight chance of rain. Highs in the 50s. Saturday Night: Rain likely. Lows in the 40s. Sunday: Mostly cloudy. A chance of rain. Highs in the lower to mid 50s. Sunday Night: Mostly cloudy. A slight chance of rain. Lows in the upper 30s to mid 40s. Monday: Partly cloudy. Highs in the mid 50s to lower 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. |
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