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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 26 2021 at 2:05 PM PST | Next Issuance: | Jan 27 2021 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 | |||
2019* |
9,570 |
19.50 |
Feb 27, 2019 |
| 2018* | 3,970 |
11.31 |
Mar 22, 2018 |
| 2017* | 9,340 | 19.20 | Feb 7, 2017 |
2016* |
4,520 | 13.85 | Mar 6, 2016 |
2015* |
5,540 |
15.63 |
Dec 11, 2014 |
| Historical High Stage/Flow Events (Period of Record - Jun 2000 to Present)* | |||
| 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) |
| Today: Rain likely. Highs in the 40s to upper 50s. South winds 5 to 15 mph. Tonight: Rain. Lows in the 40s to lower 50s. Southeast winds 10 to 20 mph. Thursday: Rain in the morning. A slight chance of thunderstorms. Showers likely in the afternoon. Some thunderstorms may produce heavy rainfall. Highs in the 50s. South winds 5 to 15 mph. Thursday Night: Mostly cloudy. Patchy fog. A chance of rain. Lows in the 30s to mid 40s. Southeast winds up to 5 mph and Becoming northeast after midnight. Chance of rain 50 percent. Friday: Mostly cloudy in the morning then becoming partly cloudy. Patchy fog in the morning. A slight chance of rain in the morning. Highs in the 50s. North winds 5 to 10 mph and becoming southwest in the afternoon. Chance of rain 20 percent. Friday Night: Mostly cloudy. A chance of rain. Lows in the mid 30s to upper 40s. Saturday: Mostly cloudy. A slight chance of rain. Highs in the 50s. Saturday Night and Sunday: Mostly cloudy. A chance of rain. Lows in the 40s. Highs in the mid 50s to lower 60s. Sunday Night and Monday: Rain likely. Lows in the 40s to lower 50s. Highs in the 50s to lower 60s. Monday Night and Tuesday: Mostly cloudy. A chance of rain. Lows in the 30s to upper 40s. Highs in the 50s. |
| 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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