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SwedenLong Tom River at Monroe water level
River gauge, Long Tom River, Oregon, United States
Right now
Below flood stage
Water level
- Flow
- 628 cfs
- Water temperature
- 59 °F
History
The forecast expects the river to fall to 5.18 ft by Wednesday, October 28 at 05:00 AM. Issued Sunday, October 18 at 08:58 AM by NOAA National Weather Service.
What this means
Water levels are unremarkable at Long Tom River at Monroe, where the gauge shows 5.23 ft.
It is 3.77 ft below the flood stage of 9.00 ft.
It is on the way up, by 0.21 ft over the past 24 hours. The forecast expects the river to fall to 5.18 ft by Wednesday, October 28 at 05:00 AM. There is still 3.77 ft of room before flood stage. The 30-day range is 4.76 ft – 5.24 ft.
The water temperature at the gauge is 59 °F.
Judged against the official flood stage for this gauge. How to read levels
Key numbers
- Highest on record
- 10.42 ftJanuary 15, 1974
- Forecast peak
- 5.24 ftSunday, October 18 at 11:00 AM
Paddling and fishing conditions
Most paddlers and anglers will find the river in good shape at this stage.
For reference, flood stage is 9.00 ft.
What happens at each level
- 12.00 ft
- flooding impacts buildings in parts of Monroe, especially between Territorial Road and the river. Also expect flooding of the City Park, numerous farms in the area, and several rural roads.
- 11.00 ft
- flooding threatens some buildings in Monroe between Territorial Road and the river, along with the City Park just north of Hwy 99 and numerous rural roads and farms.
- 10.00 ft
- flooding impacts some roads and agricultural land in the vicinity of Monroe, and may threaten some homes in low-lying areas.
- 9.00 ft
- flood waters threaten some roads and low-lying agricultural land in the vicinity of Monroe.
- 5.23 ft
- Right now
Impact statements from the U.S. National Weather Service.
Highest crests on record
| Rank | Level | Date |
|---|---|---|
| 1 | 10.42 ft | January 15, 1974 |
| 2 | 10.08 ft | February 7, 1996 |
| 3 | 10.06 ft | December 26, 1964 |
| 4 | 9.59 ft | January 21, 1972 |
| 5 | 9.54 ft | January 18, 2006 |
| 6 | 9.47 ft | December 6, 1981 |
| 7 | 9.33 ft | December 28, 1998 |
| 8 | 9.17 ft | February 22, 1986 |
| 9 | 9.11 ft | April 9, 2019 |
| 10 | 9.04 ft | November 19, 1996 |
Weather at the gauge
No rain in the last 3 days.
Forecast: Open-Meteo
Map
Other gauges on the Long Tom River
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Long Tom River near NotiRiver gauge, Long Tom River | 14.7 cfs | Low | −0.5 cfs | 19 mi |
| Long Tom River near AlvadoreRiver gauge, Long Tom River | 405 cfs | Low | −30.0 cfs | 13 mi |
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Willamette River at HarrisburgRiver gauge, Willamette River | 1.59 ft | Below flood stage | −0.01 ft | 7 mi |
| Marys River near PhilomathRiver gauge, Marys River | 1.94 ft | Below flood stage | +0.02 ft | 15 mi |
| East Fork Lobster Creek near AlseaRiver gauge, East Fork Lobster Creek | 1.4 cfs | Normal | ±0 | 17 mi |
| Willamette River at CorvallisRiver gauge, Willamette River | 10.17 ft | Below flood stage | +0.13 ft | 18 mi |
| McKenzie River near CoburgRiver gauge, McKenzie River | 1,740 cfs | Low | +10.0 cfs | 19 mi |
| Willamette River at EugeneRiver gauge, Willamette River | 9.75 ft | Low | −0.01 ft | 21 mi |
| Mohawk River near SpringfieldRiver gauge, Mohawk River | 0.72 ft | Below flood stage | ±0 | 23 mi |
| Calapooia River at AlbanyRiver gauge, Calapooia River | 18.1 cfs | Very low | −0.8 cfs | 23 mi |
Questions and answers
What is flood stage for the Long Tom River at Monroe?
The official flood stage is 9.00 ft. The level is currently 3.77 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 Long Tom River at Monroe today?
On Oct 18, 2026, 04:00 PM PDT, the water level was 5.23 ft. Up 0.21 ft over the last 24 hours.
Is Long Tom River at Monroe rising or falling?
Up 0.21 ft over the last 24 hours.
Is the level of Long Tom River at Monroe normal?
Below flood stage. Judged against the official flood stage for this gauge.
What is the highest water level ever recorded at Long Tom River at Monroe?
The highest level on record is 10.42 ft on January 15, 1974.
Is Long Tom River at Monroe expected to rise?
The forecast expects the river to fall to 5.18 ft by Wednesday, October 28 at 05:00 AM.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- U.S. Geological Survey
- Station code
usgs:14170000(Agency page)- Coordinates
44.31283, -123.29636(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 | 5.23 ft | 2026-10-18 23:00 | Provisional |
| Flow | 628 cfs | 2026-10-18 23:00 | Provisional |
| Water temperature | 59 °F | 2026-10-18 23:00 | Provisional |
Download
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How to cite
U.S. Geological Survey: Long Tom River at Monroe (usgs:14170000). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/oregon/long-tom-river-at-monroe
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