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, 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.


LITTLE MENOMONEE RIVER

Last Updated: December 19, 2025

Get the latest River Levels, Streamflow, and Hydrology for in River flows across 2 streamgages of the Little Menomonee River


Summary

Total streamflow across the Little Menomonee River was last observed at 12 cfs, and is expected to yield approximately 24 acre-ft of water today; about 74% of normal. Average streamflow for this time of year is 16 cfs, with recent peaks last observed on 2025-08-10 when daily discharge volume was observed at 765 cfs.

Maximum discharge along the river is currently at the Little Menomonee River At Milwaukee reporting a streamflow rate of 8.01 cfs. This is also the highest stage along the Little Menomonee River, with a gauge stage of 12.25 ft at this location. This river is monitored from 2 different streamgauging stations along the Little Menomonee River, the highest being situated at an altitude of 729 ft, the Little Menomonee River Near Freistadt.

River Details

Last Updated 2025-12-09
Discharge Volume 24 ACRE-FT
Streamflow 11.92 cfs
-0.35 cfs (-2.85%)
Percent of Normal 73.69%
Maximum 764.9 cfs
2025-08-10
Seasonal Avg cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Little Menomonee River Near Freistadt
USGS 04087050
4 cfs 2.31 ft 5.68
Little Menomonee River At Milwaukee
USGS 04087070
8 cfs 12.25 ft -6.53
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

Historically, the river was used for milling and other industrial activities. Today, it is primarily used for recreation and agriculture. The river is fed by numerous tributaries, including the Little Menomonee Creek and the Mequon Creek. It is also home to several reservoirs and dams, including the Little Menomonee River Dam and the Silver Spring Dam. These dams help to control the flow of the river and provide water for agricultural and recreational purposes. The Little Menomonee River is a popular destination for fishing, kayaking, and canoeing, and it is home to a variety of aquatic wildlife, including bass, trout, and pike.