Upper Wisconsin HUC8 07070001
A 5,646 km² sub-basin of the Upper Mississippi region in MI, WI. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
31
Stressed
Drought index
387
Extreme
Area in D2+
100%
0% exceptional (D4)
Gauges below normal
100%
of 2 reporting
Median flow
48%
p15 of record
Water assets
1,439
2 springs · 506 wells
USGS gauges (3)
- WISCONSIN RIVER @ RAINBOW LAKE NR LAKE TOMAHAWK,WI05391000282 cfsp9 · much below normal
- SPIRIT RIVER AT SPIRIT FALLS, WI0539350016 cfsp22 · below normal
- TOMAHAWK RIVER @ STATE HIGHWAY 70 NEAR MINOCQUA,WI0539210217 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-20 | 387 | 100 | 2/2 | p15 |
| 2026-10-19 | 387 | 100 | 1/2 | p17 |
| 2026-10-18 | 387 | 100 | 1/2 | p22 |
| 2026-10-17 | 387 | 100 | 1/2 | p30 |
| 2026-10-16 | 387 | 100 | 1/2 | p20 |
| 2026-10-15 | 371 | 100 | 2/2 | p9 |
| 2026-10-14 | 371 | 100 | 2/2 | p9 |
| 2026-10-13 | 371 | 100 | 2/2 | p9 |
| 2026-10-12 | 371 | 100 | 2/2 | p9 |
| 2026-10-11 | 371 | 100 | 2/2 | p9 |
| 2026-10-10 | 371 | 100 | 2/2 | p9 |
| 2026-10-09 | 371 | 100 | 2/2 | p9 |
| 2026-10-08 | 370 | 99.7 | 2/2 | p18 |
| 2026-10-07 | 370 | 99.7 | 2/2 | p15 |
Top water assets
- 66Jerseyreservoir
- 65South Dike -Willowreservoir
- 65Spruce Lakereservoir
- 65Pickerel Control Structurereservoir
- 65Little St Germainreservoir
- 65Minocquareservoir
- 65Lower Nine Milereservoir
- 65North Pelicanreservoir
- 65Rhinelanderreservoir
- 65Little Rice Riverreservoir