Lower Kootenai HUC8 17010104
A 9,700 km² sub-basin of the Pacific Northwest region in CN, ID, MT. 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
58
Moderate
Drought index
221
Severe
Area in D2+
36.01%
0% exceptional (D4)
Gauges below normal
50%
of 4 reporting
Median flow
85%
p34 of record
Water assets
574
10 springs · 241 wells
USGS gauges (5)
- KOOTENAI RIVER AT LEONIA, ID123050004,690 cfsp12 · below normal
- BOUNDARY CREEK NR PORTHILL ID1232150022 cfsp16 · below normal
- KOOTENAI RIVER AT PORTHILL ID123220005,040 cfsp52 · normal
- KOOTENAI RIVER BEL MOYIE RIVER NR BONNERS FERRY ID123080005,200 cfsp67 · normal
- KOOTENAI RIVER TRIBAL HATCHERY NR BONNERS FERRY123101005,070 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-20 | 221 | 36.01 | 2/4 | p34 |
| 2026-10-19 | 221 | 36.01 | 2/4 | p26 |
| 2026-10-18 | 221 | 36.01 | 3/4 | p17 |
| 2026-10-17 | 221 | 36.01 | 3/4 | p14 |
| 2026-10-16 | 221 | 36.01 | 3/4 | p15 |
| 2026-10-15 | 221 | 36.01 | 1/3 | p25 |
| 2026-10-14 | 221 | 36.01 | 2/3 | p22 |
| 2026-10-13 | 221 | 36.01 | 1/3 | p28 |
| 2026-10-12 | 221 | 36.01 | 1/3 | p34 |
| 2026-10-11 | 221 | 36.01 | 1/3 | p36 |
| 2026-10-10 | 221 | 36.01 | 1/3 | p32 |
| 2026-10-09 | 221 | 36.01 | 1/3 | p31 |
| 2026-10-08 | 233 | 36.01 | 2/4 | p20 |
| 2026-10-07 | 233 | 36.01 | 2/4 | p24 |
Top water assets
- 69Summit Creekriver
- 69Summit Creekriver
- 69Mission Creekriver
- 69Summit Creekriver
- 67Parker Creekriver
- 67Fall Creekriver
- 67Corn Creekriver
- 67Fall Creekriver
- 67Pine Creekriver
- 67Boundary Creekriver