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 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
47
Stressed
Drought index
233
Severe
Area in D2+
32.37%
0% exceptional (D4)
Gauges below normal
67%
of 3 reporting
Median flow
21%
p22 of record
Water assets
1,358
8 springs · 921 wells
USGS gauges (4)
- CRAB CREEK AT IRBY, WA124650001 cfsp7 · much below normal
- WILSON CREEK BELOW CORBETT DRAW NEAR ALMIRA, WA124654000 cfsp22 · below normal
- COAL CREEK AT MOHLER, WA124648000 cfsp84 · above normal
- CRAB CREEK NEAR STRATFORD, WA124660150 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 233 | 32.37 | 2/3 | p22 |
Top water assets
- 67Rock Creekriver
- 67Crab Creekriver
- 67Pinto Damreservoir
- 67Lake Creekriver
- 67Bluestem Creekriver
- 67Rock Creekriver
- 67Crab Creekriver
- 67Rock Creekriver
- 67Bluestem Creekriver
- 67Rock Creekriver