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SwedenMattole River near Petrolia water level
River gauge, Mattole River, California, United States
Right now
Very low for mid-October
Water level
- Flow
- 15.9 cfs
History
What this means
The Mattole River near Petrolia is running far below normal at 11.04 ft.
It has barely moved over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. In the last month it has stayed between 11.02 ft and 11.04 ft.
Fall is often low-water season on rivers, and it usually takes a few days of steady rain to change that.
Compared with 5 years of daily readings for this time of year. How to read levels
Key numbers
- Highest on record
- 29.60 ftDecember 22, 1955
Floating and fishing near Mattole River near Petrolia
Low water exposes gravel bars that make good wading access, but some boat ramps may be left high and dry.
Highest crests on record
| Rank | Level | Date |
|---|---|---|
| 1 | 29.60 ft | December 22, 1955 |
| 2 | 27.96 ft | February 25, 2019 |
| 3 | 27.86 ft | December 22, 1964 |
| 4 | 27.85 ft | December 28, 2005 |
| 5 | 27.09 ft | December 21, 2025 |
| 6 | 25.20 ft | March 14, 2023 |
| 7 | 24.77 ft | November 22, 2024 |
| 8 | 24.15 ft | March 30, 2012 |
| 9 | 23.65 ft | January 13, 2024 |
| 10 | 22.17 ft | December 30, 2022 |
Weather at the gauge
The forecast is not available right now.
Map
Other gauges on the Mattole River
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Mattole River near EttersburgRiver gauge, Mattole River | 7.4 cfs | Low | +1.5 cfs | 20 mi |
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Bull Creek near WeottRiver gauge, Bull Creek | 0.3 cfs | Very low | ±0 | 15 mi |
| Eel R A ScotiaRiver gauge | 8.74 ft | Below flood stage | +0.02 ft | 16 mi |
| Eel R A FernbridgeRiver gauge | −0.51 ft | Below flood stage | −0.04 ft | 21 mi |
| Van Duzen River near BridgevilleRiver gauge, Van Duzen River | −0.32 ft | Below flood stage | +0.02 ft | 24 mi |
| Sf Eel River near MirandaRiver gauge, Sf Eel River | 6.20 ft | Below flood stage | +0.02 ft | 28 mi |
| Eel R A Fort SewardRiver gauge | 7.22 ft | Below flood stage | +0.01 ft | 35 mi |
| Sf Eel R A LeggettRiver gauge | 15.0 cfs | Low | +0.6 cfs | 42 mi |
| Mad River near ArcataRiver gauge, Mad River | 5.65 ft | Below flood stage | +0.02 ft | 43 mi |
Questions and answers
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 Mattole River near Petrolia today?
On Oct 20, 2026, 12:30 PM PDT, the water level was 11.04 ft. Steady over the last 24 hours.
Is Mattole River near Petrolia rising or falling?
Steady over the last 24 hours.
Is the level of Mattole River near Petrolia normal?
Very low for mid-October. Compared with 5 years of daily readings for this time of year.
What is the highest water level ever recorded at Mattole River near Petrolia?
The highest level on record is 29.60 ft on December 22, 1955.
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:11469000(Agency page)- Coordinates
40.31316, -124.28335(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 | 11.04 ft | 2026-10-20 19:30 | Provisional |
| Flow | 15.9 cfs | 2026-10-20 19:30 | Provisional |
Download
Embed this gauge
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How to cite
U.S. Geological Survey: Mattole River near Petrolia (usgs:11469000). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/california/mattole-river-near-petrolia
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