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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: | Dec 10 2018 at 8:15 AM PST | Next Issuance: | Dec 10 2018 at 3:00 PM 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 | |||
| 2017* | 9,340 | 19.20 | Feb 7, 2017 |
2016* |
4,520 | 13.85 | Mar 6, 2016 |
2015* |
5,540 |
15.63 |
Dec 11, 2014 |
2014* |
2,200 |
8.77 |
Feb 9, 2014 |
| 2013* | 9,690 |
16.87 |
Dec 23, 2012 |
| 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: Mostly cloudy in the morning then becoming partly cloudy. Scattered showers in the morning. Highs in the mid 50s to lower 60s. Northwest winds 5 to 10 mph and becoming west 10 to 20 mph in the afternoon. Tonight: Mostly clear. Lows in the 30s to 40s. Northwest winds 10 to 20 mph. Tuesday: Sunny in the morning then becoming partly cloudy. Highs in the mid 50s to lower 60s. West winds 10 to 20 mph. Tuesday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 30s to lower 50s. Northwest winds 10 to 20 mph. Wednesday: Partly cloudy. Highs in the upper 50s to mid 60s. West winds 5 to 15 mph. Wednesday Night: Partly cloudy. Lows in the 30s to 40s. Thursday: Partly cloudy. Highs in the mid 50s to lower 60s. Thursday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 30s to upper 40s. Friday: Rain likely. Highs in the 50s. 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: Mostly cloudy. A chance of rain. Lows in the upper 30s to lower 50s. Sunday: Rain likely. 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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