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Latitude: 38.61º N | Longitude: 122.84º W | Elevation: 77 Feet | |||
Location: Sonoma County in California | Bulletin Group: Russian Napa | River Group: Russian Napa |
Monitor Stage: 20.0 Feet | Flood Stage: 23.0 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 | |||
2022* |
17,900 |
13.55 |
Oct 25, 2021 |
2021* |
1,740 |
3.95 |
Feb 2, 2021 |
2020* |
7,050 |
7.63 |
Dec 7, 2019 |
2019* |
67,300 |
26.84 |
Feb 27, 2019 |
2018* |
10,800 |
9.76 |
Mar 22, 2018 |
Historical High Stage/Flow Events (Period of Record - Oct 1939 to Present) - Ranked by Flow | |||
1995* |
73,000 |
26.23 |
Jan 9, 1995 |
1965* |
71,300 |
27.00 |
Dec 23, 1964 |
1986* |
71,100 |
25.81 |
Feb 17, 1986 |
2019* |
67,300 |
26.84 |
Feb 27, 2019 |
1997* |
65,700 |
24.61 |
Jan 01, 1997 |
* Discharge affected by regulation or diversion |
Location Photographs | ||
ESRI™ Locator Map |
Impacts - E19 Information | |
23.0 Feet | Minor flooding of banks in rural areas and farm land along the reach of the gage. |
25.0 Feet | Minor flooding continues. Low-lying areas south of US 101 begin to flood. |
27.0 Feet | Moderate flooding begins along the reach. Some secondary roads south of US 101 begin to flood. |
29.0 Feet | Major flooding begins along the reach. Homes, businesses, and secondary roads in the lowest sections of Healdsburg begin to flood. Lower portions of the Alexander Valley begin to flood. |
30.0 Feet | Major flooding continues. Extensive flooding begins in the agricultural sections of the Alexander Valley. |
Official 7 Day National Weather Service Forecast (CAZ506) |
Rest of Tonight: Partly cloudy. Lows in the upper 40s to mid 50s. West winds 10 to 20 mph. Friday: Partly cloudy in the morning then becoming sunny. A slight chance of drizzle in the morning. Highs in the 50s to upper 60s. Northwest winds 10 to 20 mph with gusts to around 35 mph. Friday Night: Clear. Lows in the 40s to lower 50s. Northwest winds 10 to 20 mph with gusts to around 35 mph. Saturday: Sunny in the morning then becoming partly cloudy. Highs in the 60s to lower 70s. West winds 10 to 20 mph. Saturday Night: Partly cloudy in the evening then becoming mostly clear. Lows in the mid 40s to lower 50s. West winds 10 to 20 mph. Sunday: Sunny. Highs in the 60s to mid 70s. Sunday Night through Tuesday: Clear. Lows in the 40s to lower 50s. Highs in the upper 60s to lower 80s. Tuesday Night through Thursday: Mostly clear. Lows in the mid 40s to lower 50s. Highs in the 60s to 70s. |
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. |