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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: | Aug 16 2022 at 7:43 AM PDT | Next Issuance: | Aug 17 2022 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 | |||
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: Sunny. Haze late in the morning. Highs in the mid 80s to upper 90s. South winds 5 to 10 mph and becoming southwest 10 to 20 mph in the afternoon. Tonight: Mostly clear. Haze in the evening. Lows in the 50s to 60s. Southwest winds 10 to 20 mph. Wednesday: Sunny. Highs in the upper 70s to mid 90s. Southwest winds 10 to 20 mph. Wednesday Night: Clear in the evening then becoming partly cloudy. Lows in the 50s to lower 60s. Southwest winds 10 to 20 mph. Thursday: Partly cloudy in the morning then becoming sunny. Highs in the upper 70s to lower 90s. Southwest winds 10 to 20 mph. Thursday Night: Mostly clear. Lows in the 50s to lower 60s. Friday through Saturday Night: Mostly clear. Highs in the mid 70s to lower 90s. Lows in the 50s to lower 60s. Sunday: Partly cloudy in the morning then becoming sunny. Highs in the 70s to 80s. Sunday Night and Monday: Mostly clear. Lows in the 50s. Highs in the mid 70s to lower 90s. |
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. |