Rivermatics

USGS Streamgage 09072550

Roaring Fork River above Lost Man Creek near Aspen, CO

Roaring Fork River above Lost Man Creek near Aspen, CO is USGS streamgage 09072550 in Colorado, monitoring river discharge in hydrologic subbasin 14010004. It sits on the Roaring Fork River, alongside 5 other gauges Rivermatics tracks on the same river. It drains a watershed of about 9 square miles. Discharge records at this site go back to 1980. Typical flow runs near 3.9 cfs in July and 0 cfs in April, with the higher of the two arriving in July.

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Gauge details

State
Colorado
Drainage area
9 sq mi
Gauge elevation
10,559 ft
Subbasin (HUC-8)
14010004
Coordinates
39.11936, -106.62392
USGS site number
09072550
Records begin
1980-10-01 (46 years)

14-day flow forecast

Based on observations through for Roaring Fork River above Lost Man Creek near Aspen, CO. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
3.3 3.7 4
3.3 3.7 4
3.2 3.7 4.2
2.9 3.7 4.3
2.7 3.6 4.2
2.4 3.7 4.5
2.3 3.6 4.4
2.3 3.5 4.4
2.2 3.5 4.5
2.1 3.6 4.6
1.9 3.5 4.6
2.1 3.5 4.4
2 3.5 4.5
1.9 3.5 4.5

All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 46 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January — 0 —
February — 0 —
March — 0 —
April — 0 —
May 0 0 27.6
June 0 3.6 143.8
July 0 3.9 93.1
August 0.1 3.9 22.1
September 0.2 3.2 9.7
October 0 1 6.5
November — 0.9 —
December — 0 —

All values in cubic feet per second (cfs).

Common questions

When does Roaring Fork River above Lost Man Creek near Aspen, CO normally run highest?
July, on the long-term record. The median daily flow that month is about 3.9 cfs, against 0 cfs in January, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Roaring Fork River above Lost Man Creek near Aspen, CO?
It depends on the month. In May, half of days historically fall near 0 cfs, with the middle 80% of days between 0 and 27.6 cfs. The month-by-month table on this page gives the full range.
How long has Roaring Fork River above Lost Man Creek near Aspen, CO been measured?
Discharge records at USGS site 09072550 begin in 1980, about 46 years, covering roughly 2,296 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is Roaring Fork River above Lost Man Creek near Aspen, CO?
The gauge sits at 39.11936, -106.62392, in Colorado, in hydrologic subbasin 14010004, at an elevation of about 10,559 feet, draining roughly 9 square miles.
Can I use Roaring Fork River above Lost Man Creek near Aspen, CO data for flood or safety decisions?
No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

Upstream and downstream on the Roaring Fork River

Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Roaring Fork River in full.

Other gauges in this subbasin