2025-12-20T00:00:00-07:00
...THIS IS A PARTICULARLY DANGEROUS SITUATION FOR IN AND IMMEDIATELY ADJACENT TO THE FOOTHILLS, BETWEEN 5500 AND 9000 FEET, FOR BOULDER AND JEFFERSON COUNTIES ON FRIDAY... Strong west winds, sustained 45-55 mph with gusts upwards of 85- 105 mph, are expected in the foothills of Larimer, Boulder and Jefferson Counties beginning early Friday morning. Relative humidity values are expected to drop into the low teens, possibly upper single digits. While Red Flag conditions, critical fire weather, are expected across a larger area in northern Colorado, the most extreme conditions are expected to be along Highway 93 from Jefferson County into Boulder County and along US-36 north of Boulder to the Larimer County line and westward. There will be a high potential for fast moving wildfires, should any new starts occur. Winds toward I-25 and eastward will be slower to develop, and also speeds will be considerably lighter. That said, gusts of 25- 40 mph are still expected to combine with very low humidity and cured grasses to support critical fire weather conditions. Such conditions may be a longer duration than usual, with potential for low humidity to extend well into the evening hours. * AFFECTED AREA...Fire Weather Zones 238, 240, 241, 242 and 243. * TIMING...From 10 AM this morning to midnight MST tonight. * WINDS...West 15 to 25 mph with gusts up to 60 mph possible west of I-25, and gusts to 40 mph possible along and east of I- 25. * RELATIVE HUMIDITY...As low as 12 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
Concho River
was last observed at
29
cfs, and is expected to yield approximately
57
acre-ft of water today; about 75%
of normal.
Average streamflow for this time of year is
38 cfs,
with recent peaks last observed
on
2025-07-05 when daily discharge volume was observed at
28,792 cfs.
Maximum discharge along the river is currently at the
Concho Rv At Paint Rock
reporting a streamflow rate of 19.1 cfs.
This is also the highest stage along the Concho River, with a gauge stage of
12.76 ft at this location.
This river is monitored from 2 different streamgauging stations along the Concho River, the highest being situated at an altitude of 1,800 ft, the
Concho Rv At San Angelo.
River Details
| Last Updated | 2025-12-19 |
| Discharge Volume | 57 ACRE-FT |
| Streamflow |
28.7 cfs
+1.9 cfs (+7.09%) |
| Percent of Normal | 74.93% |
| Maximum |
28,792.0 cfs
2025-07-05 |
| Seasonal Avg | cfs |
River Streamflow Levels
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Concho Rv At San Angelo
USGS 08136000 |
10 cfs | 1.67 ft | 0 | |||||
|
Concho Rv At Paint Rock
USGS 08136500 |
19 cfs | 12.76 ft | 11.05 |
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile
The river's name comes from the numerous shells, or conch, found along its banks. The river has a rich history dating back to the 1700s, with the first European exploration in the area conducted by Spanish explorers. The Concho River is a tributary of the Colorado River and is fed by numerous springs and creeks. The river is home to two major reservoirs: the O.H. Ivie Reservoir and the Twin Buttes Reservoir. These reservoirs provide water for irrigation and municipal use in the surrounding areas. The Concho River also has significant recreational use, with activities such as fishing, boating, and swimming popular among visitors. Additionally, the river and surrounding area support various agricultural activities, including livestock grazing and crop production.