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SwedenBlue River below Green Mountain Reservoir water level
River gauge, Blue River, Colorado, United States
Right now
Below flood stage
Water level
- Flow
- 181 cfs
History
The forecast expects the river to fall to 3.44 ft by Monday, October 19 at 05:00 AM. Issued Sunday, October 18 at 08:31 AM by NOAA National Weather Service.
What this means
The Blue River below Green Mountain Reservoir is at 3.41 ft, in the normal range.
It is 7.09 ft below the flood stage of 10.50 ft.
It has risen 0.04 ft over the past 24 hours. The forecast expects the river to fall to 3.44 ft by Monday, October 19 at 05:00 AM. There is still 7.09 ft of room before flood stage. In the last month it has stayed between 3.32 ft and 3.47 ft.
Judged against the official flood stage for this gauge. How to read levels
Key numbers
- Highest on record
- 10.85 ftJuly 12, 1995
- Forecast peak
- 3.44 ftMonday, October 19 at 05:00 AM
Floating and fishing near Blue River below Green Mountain Reservoir
Normal flows mean predictable rapids and good access at most put-ins.
Flood stage here is 10.50 ft, 7.09 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.
What happens at each level
- 12.00 ft
- This is a major, life-threatening flood especially in the steep canyon immediately downstream of Green Mountain Reservoir. There is widespread inundation of low lying properties along the Blue River with extensive flooding of roads and bridges along and crossing the river.
- 11.00 ft
- Moderate flooding will be especially dangerous in the steep canyon immediately downstream of Green Mountain Reservoir. Buildings near the river flood. Debris damming on the upriver side of bridges may result in flooding of bridge approaches.
- 10.50 ft
- Ranchlands flood and structures begin to flood along the Blue River below Green Mountain Reservoir.
- 10.00 ft
- Low lying areas flood along the Blue River below Green Mountain Reservoir.
- 9.20 ft
- Without mitigation, water begins to impact low lying areas along the river.
- 3.41 ft
- Right now
Impact statements from the U.S. National Weather Service.
Highest crests on record
| Rank | Level | Date |
|---|---|---|
| 1 | 10.85 ft | July 12, 1995 |
| 2 | 10.22 ft | July 1, 1984 |
| 3 | 10.13 ft | July 8, 1957 |
| 4 | 10.12 ft | July 11, 2011 |
| 5 | 9.88 ft | June 24, 1997 |
| 6 | 9.53 ft | June 28, 2009 |
| 7 | 9.52 ft | July 11, 1983 |
| 8 | 9.15 ft | June 18, 2007 |
| 9 | 8.98 ft | July 4, 2019 |
| 10 | 8.89 ft | June 21, 2015 |
Weather at the gauge
The forecast is not available right now.
Map
Other gauges on the Blue River
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Blue River at Blue RiverRiver gauge, Blue River | 0.64 ft | Below flood stage | +0.01 ft | 33 mi |
| Blue River near DillonRiver gauge, Blue River | 4.45 ft | Below flood stage | ±0 | 26 mi |
| Blue River below DillonRiver gauge, Blue River | 0.92 ft | Below flood stage | −0.01 ft | 23 mi |
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Green Mountain ReservoirReservoir | 7,827.01 ft | Very low | 1.1 mi | |
| Williams Fork near ParshallRiver gauge, Williams Fork | 6.0 cfs | Very low | ±0 | 12 mi |
| Colorado River near KremmlingRiver gauge, Colorado River | 3.92 ft | Below flood stage | −0.06 ft | 12 mi |
| Williams Fork below Williams Fork ReservoirRiver gauge, Williams Fork | 1.33 ft | Below flood stage | −0.14 ft | 13 mi |
| Piney River near State BridgeRiver gauge, Piney River | 2.59 ft | Below flood stage | −0.01 ft | 14 mi |
| Williams Fork near LealRiver gauge, Williams Fork | 1.42 ft | Below flood stage | ±0 | 15 mi |
| Booth Creek near MinturnRiver gauge, Booth Creek | 0.9 cfs | Low | ±0 | 16 mi |
| Muddy Creek below Wolford Mountain Reser. near KremmlingRiver gauge, Muddy Creek | 4.05 ft | Below flood stage | −0.02 ft | 16 mi |
Questions and answers
What is flood stage for the Blue River below Green Mountain Reservoir?
The official flood stage is 10.50 ft. The level is currently 7.09 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 Blue River below Green Mountain Reservoir today?
On Oct 19, 2026, 10:00 AM MDT, the water level was 3.41 ft. Up 0.04 ft over the last 24 hours.
Is Blue River below Green Mountain Reservoir rising or falling?
Up 0.04 ft over the last 24 hours.
Is the level of Blue River below Green Mountain Reservoir normal?
Below flood stage. Judged against the official flood stage for this gauge.
What is the highest water level ever recorded at Blue River below Green Mountain Reservoir?
The highest level on record is 10.85 ft on July 12, 1995.
Is Blue River below Green Mountain Reservoir expected to rise?
The forecast expects the river to fall to 3.44 ft by Monday, October 19 at 05:00 AM.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- U.S. Geological Survey
- Station code
usgs:09057500(Agency page)- Coordinates
39.88026, -106.33392(WGS84)- Vertical datum
- NGVD29
- 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 | 3.41 ft | 2026-10-19 16:00 | Provisional |
| Flow | 181 cfs | 2026-10-19 16:00 | Provisional |
Download
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How to cite
U.S. Geological Survey: Blue River below Green Mountain Reservoir (usgs:09057500). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/colorado/blue-river-below-green-mountain-reservoir
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