Santa Rosa C A Willowside Road near Santa Rosa water level

Name: Santa Rosa C A Willowside Road near Santa Rosa water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Santa Rosa C A Willowside Road, California, United States

Directions

Below flood stage

Water level

57.75ft Steady over the last 24 hours

Measured Oct 20, 2026, 10:15 PM PDT (32 min ago)

Flow: 0.9 cfs

History

7 days

Water level Minor flood stage

What this means

The gauge at Santa Rosa C A Willowside Road near Santa Rosa reads 57.75 ft, a normal level.

It is 12.25 ft below the flood stage of 70.00 ft.

It has barely moved over the past 24 hours. Over the past 30 days it has moved between 57.72 ft and 57.76 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Judged against the official flood stage for this gauge. How to read levels

What the stage means on the water

A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.

The National Weather Service puts flood stage for this gauge at 70.00 ft, still 12.25 ft away.

What happens at each level

77.00 ft: Major Flooding. Willowside Road inundated and adjacent vineyards under many feet of water.
74.00 ft: Moderate Flooding. Water levels reaching underside of bridge deck at Willowside Road. Further rise in water levels will cause backwater effects at the bridge with waters seeking alternative routes around bridge with possible build up and overflow of roadway. NWS will issue a Flash Flood Warning, if not yet already issued.
70.00 ft: Minor Flooding. Ewok Trail begins to flood. NWS will issue an Urban/Small Stream Advisory, if not yet already issued.
62.50 ft: Action Stage. Flapper valve on upstream right bank side (north side) inundated at this stage and may become blocked. Valve serves to drain adjacent low-lying vineyards, so runoff may accumulate at an accelerated rate on adjacent floodplains due to possible valve blockage or inoperation. NWS may issue a Flash Flood Watch, if not yet already issued.
57.75 ft: Right now

Impact statements from the U.S. National Weather Service.

Weather at the gauge

No rain in the last 3 days.

18 Sun 82° 44° – Wind 10 mph

19 Mon 67° 42° – Wind 13 mph

20 Tue 74° 51° – Wind 9 mph

21 Wed 74° 54° 0.06 in, 32% Wind 8 mph

22 Thu 65° 51° 0.37 in, 24% Wind 6 mph

23 Fri 77° 49° – Wind 7 mph

24 Sat 85° 52° – Wind 4 mph

Forecast: Open-Meteo

Sunrise 07:27 AM Sunset 06:26 PM Daylight 10 hr, 59 min Waxing gibbous 74%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Laguna De Santa Rosa Creek near SebastopolRiver gauge, Laguna De Santa Rosa Creek	55.48 ft	Below flood stage	+0.01 ft	1.8 mi
Mark West Creek near Mirabel HeightsRiver gauge, Mark West Creek	38.69 ft	Below flood stage	+0.01 ft	4.2 mi
Santa Rosa C A Santa RosaRiver gauge	23.25 ft	Below flood stage	+0.03 ft	4.5 mi
Colgan Creek near Santa RosaRiver gauge, Colgan Creek	97.69 ft	Below flood stage	+0.01 ft	5.0 mi
Colgan Creek near SebastopolRiver gauge, Colgan Creek	67.72 ft	Below flood stage	+0.01 ft	5.4 mi
Matanzas C A Santa RosaRiver gauge	155.19 ft	Below flood stage	+0.04 ft	5.7 mi
Russian River near WindsorRiver gauge, Russian River	254 cfs	Normal	±0	5.8 mi
Laguna De Santa Rosa A Stony Point Road near CotatiRiver gauge, Laguna De Santa Rosa A Stony Point Road	73.22 ft	Below flood stage	+0.02 ft	7 mi

Questions and answers

What is flood stage for the Santa Rosa C A Willowside Road near Santa Rosa?

The official flood stage is 70.00 ft. The level is currently 12.25 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Santa Rosa C A Willowside Road near Santa Rosa today?

On Oct 20, 2026, 10:15 PM PDT, the water level was 57.75 ft. Steady over the last 24 hours.

Is Santa Rosa C A Willowside Road near Santa Rosa rising or falling?

Steady over the last 24 hours. Steady over the last 7 days.

Is the level of Santa Rosa C A Willowside Road near Santa Rosa normal?

Below flood stage. Judged against the official flood stage for this gauge.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:11466320 (Agency page)
Coordinates: 38.44519, -122.80721 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	57.75 ft	2026-10-21 05:15	Provisional
Flow	0.9 cfs	2026-10-21 05:15	Provisional

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How to cite

U.S. Geological Survey: Santa Rosa C A Willowside Road near Santa Rosa (usgs:11466320). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/california/santa-rosa-c-a-willowside-road-near-santa-rosa

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer