2026-04-03T19:00:00-06:00
The National Weather Service in Denver has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 8 AM to 7 PM MDT Friday. * AFFECTED AREA...Fire Weather Zones 238, 239, 240, 241, 242, 243, 244, 245, 248, 249, 250 and 251. * TIMING...From 8 AM to 7 PM MDT Friday. * WINDS...Northwest 20 to 35 mph, with gusts around 45 mph. Gusts as high as 60 mph near the foothills of Boulder and Larimer Counties. * RELATIVE HUMIDITY...As low as 16 percent. * IMPACTS...Conditions will be favorable for rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire.
Summary
Total streamflow across the
Swift River
was last observed at
381
cfs, and is expected to yield approximately
756
acre-ft of water today; about 68%
of normal.
River levels are low and may signify a drought.
Average streamflow for this time of year is
560 cfs,
with recent peaks last observed
on
2014-04-16 when daily discharge volume was observed at
9,130 cfs.
Maximum discharge along the river is currently at the
Swift River Near Roxbury
reporting a streamflow rate of 332 cfs.
This is also the highest stage along the Swift River, with a gauge stage of
2.59 ft at this location.
This river is monitored from 2 different streamgauging stations along the Swift River, the highest being situated at an altitude of 619 ft, the
Swift River Near Roxbury.
15-Day Weather Outlook
River Details
| Last Updated | 2026-04-02 |
| Discharge Volume | 756 ACRE-FT |
| Streamflow |
381.0 cfs
-13.0 cfs (-3.3%) |
| Percent of Normal | 67.99% |
| Maximum |
9,130.0 cfs
2014-04-16 |
| Seasonal Avg | 560 cfs |
River Streamflow Levels
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Swift River Near Roxbury
USGS 01055000 |
332 cfs | 2.59 ft | -3.3 | |||||
|
Swift River At West Ware
USGS 01175500 |
45 cfs | 2.19 ft | -1.93 |
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile
The Swift River is a river that begins in Yukon Territory and flows southwest into British Columbia to its mouth at the east side of Teslin Lake on the Teslin River system. The river drains the uppermost portion of the Cassiar Mountains and in its lower reaches traverses the Nisutlin Plateau, which lies along the east side of Teslin Lake north of the mouth of the Jennings River, which is to the south of the Swift.
The river is one of two in British Columbia known as the Swift, the other of the same name is tributary to the Cariboo River in the eastern parts of the region of the same name.