Upper Crab HUC8 17020013
A 4,810 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
65
Moderate
Drought index
233
Severe
Area in D2+
32.45%
0% exceptional (D4)
Gauges below normal
0%
of 3 reporting
Median flow
88%
p46 of record
Water assets
1,358
8 springs · 921 wells
USGS gauges (4)
- CRAB CREEK AT IRBY, WA124650003 cfsp31 · normal
- WILSON CREEK BELOW CORBETT DRAW NEAR ALMIRA, WA124654000 cfsp46 · normal
- COAL CREEK AT MOHLER, WA124648000 cfsp55 · normal
- CRAB CREEK NEAR STRATFORD, WA124660150 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-22 | 233 | 32.45 | 0/3 | p46 |
| 2026-10-21 | 233 | 32.45 | 0/3 | p46 |
| 2026-10-20 | 233 | 32.45 | 1/3 | p38 |
| 2026-10-19 | 233 | 32.45 | 1/3 | p40 |
| 2026-10-18 | 233 | 32.45 | 1/3 | p39 |
| 2026-10-17 | 233 | 32.45 | 1/3 | p39 |
| 2026-10-16 | 233 | 32.45 | 1/3 | p39 |
| 2026-10-15 | 233 | 32.45 | 1/3 | p38 |
| 2026-10-14 | 233 | 32.45 | 1/3 | p38 |
| 2026-10-13 | 233 | 32.45 | 1/3 | p35 |
| 2026-10-12 | 233 | 32.45 | 1/3 | p34 |
| 2026-10-11 | 233 | 32.45 | 1/3 | p36 |
| 2026-10-10 | 233 | 32.45 | 1/3 | p35 |
| 2026-10-09 | 233 | 32.45 | 1/3 | p34 |
Top water assets
- 67Rock Creekriver
- 67Crab Creekriver
- 67Pinto Damreservoir
- 67Lake Creekriver
- 67Bluestem Creekriver
- 67Rock Creekriver
- 67Crab Creekriver
- 67Rock Creekriver
- 67Bluestem Creekriver
- 67Rock Creekriver