Nisqually HUC8 17110015
A 1,994 km² sub-basin of the Pacific Northwest region in WA. 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
53
Moderate
Drought index
98
Abnormally dry
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
86%
of 7 reporting
Median flow
38%
p14 of record
Water assets
5,371
479 springs · 4,173 wells
USGS gauges (8)
- MINERAL CREEK NEAR MINERAL, WA1208300018 cfsp6 · much below normal
- MASHEL RIVER NEAR LA GRANDE, WA120870009 cfsp6 · much below normal
- OHOP CREEK NEAR EATONVILLE, WA120880005 cfsp6 · much below normal
- CENTRALIA POWER CANAL NEAR MCKENNA, WA12089208152 cfsp14 · below normal
- NISQUALLY RIVER NEAR NATIONAL, WA12082500261 cfsp22 · below normal
- NISQUALLY RIVER AT LA GRANDE, WA12086500735 cfsp23 · below normal
- NISQUALLY RIVER AT MCKENNA, WA12089500738 cfsp54 · normal
- NISQUALLY RIVER AT LA GRANDE DAM, WA1208600037 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-22 | 98 | 0 | 6/7 | p14 |
| 2026-10-21 | 98 | 0 | 6/7 | p10 |
| 2026-10-20 | 98 | 0 | 6/7 | p10 |
| 2026-10-19 | 98 | 0 | 6/7 | p14 |
| 2026-10-18 | 98 | 0 | 6/7 | p16 |
| 2026-10-17 | 98 | 0 | 5/7 | p17 |
| 2026-10-16 | 98 | 0 | 5/7 | p17 |
| 2026-10-15 | 98 | 0 | 5/7 | p17 |
| 2026-10-14 | 98 | 0 | 6/7 | p12 |
| 2026-10-13 | 98 | 0 | 6/7 | p13 |
| 2026-10-12 | 98 | 0 | 6/7 | p15 |
| 2026-10-11 | 98 | 0 | 6/7 | p17 |
| 2026-10-10 | 98 | 0 | 4/7 | p19 |
| 2026-10-09 | 98 | 0 | 4/7 | p21 |
Top water assets
- 76Po — Ce S2-30004spring
- 76Fs — Ce S2-*10074Cwrisspring
- 76Fs — Ce S2-25072Cwrisspring
- 76Ci Ir — Cl S2-301340Clspring
- 76Ci — Ce S2-*02188Cwrisspring
- 76Po — Ce S2-27488Cwrisspring
- 76Po — Ce S2-*01982Cwrisspring
- 76Po — Cc S2-Ccvol1P209spring
- 76St — Cl S2-300905Clspring
- 76Dm — Ce S2-*20449Cwrisspring