Upper Green-Slate HUC8 14040103
A 3,964 km² sub-basin of the Upper Colorado region in WY. 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
47
Stressed
Drought index
281
Severe
Area in D2+
80.92%
0% exceptional (D4)
Gauges below normal
100%
of 1 reporting
Median flow
66%
p16 of record
Water assets
720
29 springs · 89 wells
USGS gauges (1)
- GREEN RIVER BELOW FONTENELLE RESERVOIR, WY09211200605 cfsp16 · below normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 281 | 80.92 | 1/1 | p16 |
| 2026-10-20 | 281 | 80.92 | 1/1 | p15 |
| 2026-10-19 | 281 | 80.92 | 1/1 | p15 |
| 2026-10-18 | 281 | 80.92 | 1/1 | p16 |
| 2026-10-17 | 281 | 80.92 | 1/1 | p15 |
| 2026-10-16 | 281 | 80.92 | 1/1 | p15 |
| 2026-10-15 | 281 | 80.92 | 1/1 | p14 |
| 2026-10-14 | 281 | 80.92 | 1/1 | p13 |
| 2026-10-13 | 281 | 80.92 | 1/1 | p15 |
| 2026-10-12 | 281 | 80.92 | 1/1 | p16 |
| 2026-10-11 | 281 | 80.92 | 1/1 | p15 |
| 2026-10-10 | 281 | 80.92 | 1/1 | p16 |
| 2026-10-09 | 281 | 80.92 | 1/1 | p14 |
| 2026-10-08 | 281 | 80.92 | 1/1 | p14 |
Top water assets
- 69Green Riverriver
- 69Green Riverriver
- 69Green River Below Fontenelle Reservoir, Wyriver
- 69Alkali Creekriver
- 69Alkali Creekriver
- 69Green Riverriver
- 69Green Riverriver
- 69Green Riverriver
- 69Alkali Creekriver
- 69Green Riverriver