Red Flag Warning
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 of 30-40 mph with gusts as high as 85 mph in the foothills of Boulder and northern Jefferson Counties will continue until early evening. Relative humidity values had dropped into the upper single digits and lower teens. Thus, the Particularly Dangerous Situation will remain in place til around 5-6 pm, with only a slow improvement thereafter as winds slowly weaken. Red Flag conditions, however, will persist through the rest of the evening as we remain in a near record warm, dry, and windy airmass along the Front Range through midnight. In fact, strong, gusty winds will persist through much of the night with only a slow improvement in humidity values. Thus, near critical Red Flag conditions will occur into early Saturday morning. While most of the Denver metro area has seen lighter winds prevail most of the day, a period of strong, gusty winds is expected to develop this evening and likely last past midnight, producing Red Flag conditions there. * AFFECTED AREA...Fire Weather Zones 238, 240, 241, 242 and 243. * TIMING...Until midnight MST tonight. * WINDS...West 15 to 25 mph with gusts up to 50 mph. * RELATIVE HUMIDITY...As low as 9 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.


Blackfoot River River Levels

Last Updated: December 19, 2025

The Blackfoot River, located in western Montana, is a 137-mile long river that has played a significant role in the history of the region.


Summary

Total streamflow across the Blackfoot River was last observed at 2,340 cfs, and is expected to yield approximately 4,641 acre-ft of water today; about 336% of normal. River levels are high. Average streamflow for this time of year is 697 cfs, with recent peaks last observed on 2011-06-10 when daily discharge volume was observed at 23,497 cfs.

Maximum discharge along the river is currently at the Blackfoot River Near Bonner Mt reporting a streamflow rate of 2,080 cfs. However, the streamgauge with the highest stage along the river is the Blackfoot River Nr Shelley Id with a gauge stage of 5.43 ft. This river is monitored from 7 different streamgauging stations along the Blackfoot River, the highest being situated at an altitude of 6,266 ft, the Blackfoot River Ab Reservoir Nr Henry Id.

River Details

Last Updated 2025-12-19
Discharge Volume 4,641 ACRE-FT
Streamflow 2,339.9 cfs
+52.9 cfs (+2.31%)
Percent of Normal 335.58%
Maximum 23,497.0 cfs
2011-06-10
Seasonal Avg 697 cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Blackfoot River Ab Reservoir Nr Henry Id
USGS 13063000
97 cfs 2.35 ft 30.95
Blackfoot River Nr Shelley Id
USGS 13066000
73 cfs 5.43 ft 18.58
Blackfoot River Below North Canal At Blackfoot Id
USGS 13068300
89 cfs 2.91 ft -11.04
Blackfoot River Bypass Nr Blackfoot Id
USGS 13068495
5 cfs 4.57 ft -31.37
Blackfoot River Nr Blackfoot Id
USGS 13068500
73 cfs 2.48 ft -3.44
Blackfoot R Ab Nevada Cr Nr Helmville Mt
USGS 12335100
163 cfs 3.83 ft 0
Blackfoot River Near Bonner Mt
USGS 12340000
2080 cfs 3.76 ft 1.46
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

Blackfoot is a city in Bingham County, Idaho, United States. The population was 11,899 at the 2010 census. The city is the county seat of Bingham County. Blackfoot boasts the largest potato industry in any one area, and is known as the "Potato Capital of the World." It is the site of the Idaho Potato Museum (a museum and gift shop that displays and explains the history of Idaho's potato industry), and the home of the world's largest baked potato and potato chip. Blackfoot is also the location of the Eastern Idaho State Fair, which operates between Labor Day weekend and the following weekend.
Blackfoot is the principal city of the Blackfoot, Idaho, Micropolitan Statistical Area, which includes Bingham County.