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Latitude: 38.61º N | Longitude: 122.84º W | Elevation: 77 Feet | |
Location: Sonoma County in California | River Group: Russian Napa |
Issuance Time: | Aug 17 2022 at 8:45 AM PDT | Next Issuance: | Aug 18 2022 at 9:00 AM PDT |
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 | |||
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 |
2017* |
42,500 |
20.32 |
Jan 11, 2017 |
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 |
Official 7 Day National Weather Service Forecast (CAZ506) |
Rest of Today: Mostly cloudy. Scattered showers and isolated thunderstorms. Highs in the upper 70s to lower 90s. Southwest winds 10 to 20 mph. Tonight: Mostly clear. Lows in the lower 50s to mid 60s. Southwest winds 10 to 20 mph. Thursday: Sunny. Highs in the mid 70s to lower 90s. Southwest winds 10 to 20 mph. Thursday Night: Mostly clear. Lows in the lower 50s to mid 60s. Southwest winds 10 to 20 mph. Friday: Sunny. Highs in the upper 70s to mid 90s. Southwest winds 10 to 20 mph. Friday Night: Clear. Lows in the lower 50s to mid 60s. Saturday and Saturday Night: Mostly clear. Highs in the upper 70s to lower 90s. Lows in the 50s to lower 60s. Sunday: Partly cloudy in the morning then becoming sunny. Highs in the mid 70s to upper 80s. Sunday Night through Tuesday: Mostly clear. Lows in the mid 50s to lower 60s. Highs in the mid 70s to lower 90s. |
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. |
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. |