Upper Sevier HUC8 16030001
A 3,116 km² sub-basin of the Great Basin region in UT. 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
69
Moderate
Drought index
222
Severe
Area in D2+
20.21%
0% exceptional (D4)
Gauges below normal
0%
of 3 reporting
Median flow
87%
p40 of record
Water assets
1,383
409 springs · 177 wells
USGS gauges (3)
- SEVIER RIVER AT HATCH, UT1017450060 cfsp35 · normal
- SEVIER RIVER NEAR KINGSTON, UT1018350053 cfsp40 · normal
- MAMMOTH CREEK ABV WEST HATCH DITCH, NEAR HATCH, UT1017345017 cfsp45 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-19 | 222 | 20.21 | 0/3 | p40 |
| 2026-10-18 | 222 | 20.21 | 0/3 | p46 |
| 2026-10-17 | 222 | 20.21 | 0/3 | p54 |
| 2026-10-16 | 222 | 20.21 | 0/3 | p63 |
| 2026-10-15 | 222 | 20.21 | 0/3 | p73 |
| 2026-10-14 | 222 | 20.21 | 0/3 | p76 |
| 2026-10-13 | 222 | 20.21 | 1/3 | p77 |
| 2026-10-12 | 222 | 20.21 | 1/3 | p32 |
| 2026-10-11 | 222 | 20.21 | 3/3 | p13 |
| 2026-10-10 | 222 | 20.21 | 3/3 | p10 |
| 2026-10-09 | 222 | 20.21 | 3/3 | p12 |
| 2026-10-08 | 233 | 32.11 | 3/3 | p11 |
| 2026-10-07 | 233 | 32.11 | 3/3 | p11 |
| 2026-10-06 | 233 | 32.11 | 3/3 | p11 |
Top water assets
- 69Panguitch Creekriver
- 69Panguitch Creekriver
- 69Mammoth Creekriver
- 69Swains Creekriver
- 69Mammoth Creekriver
- 69Panguitch Creekriver
- 69Mammoth Creek Abv West Hatch Ditch, Near Hatch, Utriver
- 69Sevier River Near Kingston, Utriver
- 69Sevier Riverriver
- 69Ipson Creekriver