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.
Summary
Total streamflow across the
Sangamon River
was last observed at
652
cfs, and is expected to yield approximately
1,293
acre-ft of water today; about 16%
of normal.
River levels are low and may signify a drought.
Average streamflow for this time of year is
4,054 cfs,
with recent peaks last observed
on
2016-01-01 when daily discharge volume was observed at
192,837 cfs.
Maximum discharge along the river is currently at the
Sangamon River Near Oakford
reporting a streamflow rate of 356 cfs.
However, the streamgauge with the highest stage along the river is the
Sangamon River At Fisher
with a gauge stage of 5.01 ft.
This river is monitored from 6 different streamgauging stations along the Sangamon River, the highest being situated at an altitude of 693 ft, the
Sangamon River At Fisher.
River Details
| Last Updated | 2025-12-19 |
| Discharge Volume | 1,293 ACRE-FT |
| Streamflow |
651.9 cfs
+158.02 cfs (+32.0%) |
| Percent of Normal | 16.08% |
| Maximum |
192,837.0 cfs
2016-01-01 |
| Seasonal Avg | 4,054 cfs |
River Streamflow Levels
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Sangamon River At Fisher
USGS 05570910 |
12 cfs | 5.01 ft | 102.38 | |||||
|
Sangamon River At Monticello
USGS 05572000 |
6 cfs | 3.94 ft | 349.29 | |||||
|
Sangamon River At Rt 48 At Decatur
USGS 05573540 |
2 cfs | 2.02 ft | 298.21 | |||||
|
Sangamon River At Riverton
USGS 05576500 |
138 cfs | 2.54 ft | 216.51 | |||||
|
Sangamon River At Petersburg
USGS 05578000 |
146 cfs | 4.31 ft | 31.53 | |||||
|
Sangamon River Near Oakford
USGS 05583000 |
356 cfs | 3.22 ft | -5.57 |
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile
The Sangamon River is a principal tributary of the Illinois River, approximately 246 miles (396 km) long, in central Illinois in the United States. It drains a mostly rural agricultural area between Peoria and Springfield. The river is associated with the early career of Abraham Lincoln and played an important role in the early white settlement of Illinois, when the area around was known as the "Sangamon River Country". The section of the Sangamon River that flows through Robert Allerton Park near Monticello was named a National Natural Landmark in 1971.