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
Frio River
was last observed at
28
cfs, and is expected to yield approximately
55
acre-ft of water today; about 125%
of normal.
River levels are high.
Average streamflow for this time of year is
22 cfs,
with recent peaks last observed
on
2025-07-15 when daily discharge volume was observed at
11,590 cfs.
Maximum discharge along the river is currently at the
Frio Rv At Concan
reporting a streamflow rate of 27.6 cfs.
This is also the highest stage along the Frio River, with a gauge stage of
3.52 ft at this location.
This river is monitored from 4 different streamgauging stations along the Frio River, the highest being situated at an altitude of 1,235 ft, the
Frio Rv At Concan.
River Details
| Last Updated | 2025-12-19 |
| Discharge Volume | 55 ACRE-FT |
| Streamflow |
27.6 cfs
0.0 cfs (0.0%) |
| Percent of Normal | 125.45% |
| Maximum |
11,590.0 cfs
2025-07-15 |
| Seasonal Avg | cfs |
River Streamflow Levels
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Frio Rv At Concan
USGS 08195000 |
28 cfs | 3.52 ft | 0 | |||||
|
Frio Rv Bl Dry Frio Rv Nr Uvalde
USGS 08197500 |
0 cfs | 1.42 ft | None | |||||
|
Frio Rv Nr Derby
USGS 08205500 |
0 cfs | 0.04 ft | None | |||||
|
Frio Rv At Tilden
USGS 08206600 |
1 cfs | 2.11 ft | 0 |
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile
The river is a tributary of the Nueces River and is known for its crystal-clear waters, limestone cliffs, and numerous swimming holes. The Frio River has a rich history and was used by Native Americans and early settlers for fishing and transportation. Today, it is primarily used for recreation, including swimming, tubing, and kayaking. There are several reservoirs and dams along the river, including the Frio Canyon Dam, which was built in 1948 to provide irrigation for surrounding farmland. The river is also popular for fishing, with species including bass, catfish, and sunfish. Overall, the Frio River is an important and beloved natural resource in Texas, enjoyed by locals and visitors alike.