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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: | Apr 26 2021 at 8:12 AM PDT | Next Issuance: | Apr 27 2021 at 9:00 AM PDT |
| 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) |
| Tonight: Partly cloudy in the evening then becoming mostly clear. Lows in the lower 30s to mid 40s. Northwest winds 10 to 20 mph and becoming 5 to 10 mph after midnight. Tuesday: Sunny. Highs in the mid 60s to upper 70s. Northwest winds 5 to 10 mph increasing to 10 to 20 mph in the afternoon. Tuesday Night: Mostly clear. Lows in the 40s to lower 50s. West winds 10 to 20 mph and becoming northwest 5 to 10 mph after midnight. Wednesday: Sunny. Highs in the upper 60s to mid 80s. North winds up to 5 mph increasing to southwest 10 to 20 mph in the afternoon. Wednesday Night: Mostly clear. Lows in the lower 40s to mid 50s. West winds 5 to 15 mph. Thursday: Partly cloudy. Highs in the upper 60s to mid 80s. Thursday Night: Partly cloudy. Lows in the 40s to lower 50s. Friday and Friday Night: Mostly cloudy. Highs in the upper 60s to lower 80s. Lows in the mid 40s to lower 50s. Saturday: Mostly cloudy in the morning then becoming sunny. Highs in the upper 60s to lower 80s. Saturday Night: Clear. Lows in the 40s to lower 50s. Sunday: Sunny. Highs in the mid 60s to lower 80s. Sunday Night and Monday: Clear. Lows in the 40s to lower 50s. Highs in the upper 60s to mid 80s. |
| 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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