Winnebago HUC8 07080203
A 1,783 km² sub-basin of the Upper Mississippi region in IA, MN. Drought coverage is from the US Drought Monitor (map of 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
75
Healthy
Drought index
105
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
105%
p51 of record
Water assets
509
0 springs · 322 wells
USGS gauges (1)
- Winnebago River at Mason City, IA0545950084 cfsp51 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 105 | 0 | 0/1 | p51 |
Top water assets
- 65Buffalo Creekriver
- 65Winnebago Riverriver
- 65Judicial Ditch Number Twentyfiveriver
- 65Cheslea Creekriver
- 65Little Lime Creekriver
- 65Buffalo Creekriver
- 65Bear Lakereservoir
- 65Winnebago River At Mason City, Iariver
- 65Spring Creekriver
- 65Willow Creekriver