Upper Heart HUC8 10130202
A 4,440 km² sub-basin of the Missouri region in ND. 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
52
Moderate
Drought index
225
Severe
Area in D2+
24.91%
0% exceptional (D4)
Gauges below normal
67%
of 3 reporting
Median flow
50%
p22 of record
Water assets
1,486
1 springs · 632 wells
USGS gauges (4)
- GREEN RIVER NEAR NEW HRADEC, ND063446000 cfsp0 · much below normal
- HEART RIVER AB LAKE TSCHIDA NEAR GLEN ULLIN, ND0634578011 cfsp22 · below normal
- HEART RIVER NEAR RICHARDTON, ND0634550012 cfsp51 · normal
- HEART RIVER NEAR SOUTH HEART, ND06343000no readingno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-20 | 225 | 24.91 | 2/3 | p22 |
| 2026-10-19 | 225 | 24.91 | 2/3 | p23 |
| 2026-10-18 | 225 | 24.91 | 1/3 | p28 |
| 2026-10-17 | 225 | 24.91 | 2/3 | p21 |
| 2026-10-16 | 225 | 24.91 | 2/3 | p22 |
| 2026-10-15 | 225 | 24.91 | 2/3 | p21 |
| 2026-10-14 | 225 | 24.91 | 2/3 | p22 |
| 2026-10-13 | 225 | 24.91 | 2/4 | p35 |
| 2026-10-12 | 225 | 24.91 | 2/4 | p34 |
| 2026-10-11 | 225 | 24.91 | 2/4 | p33 |
| 2026-10-10 | 225 | 24.91 | 2/4 | p38 |
| 2026-10-09 | 225 | 24.91 | 1/4 | p39 |
| 2026-10-08 | 225 | 24.91 | 1/4 | p42 |
| 2026-10-07 | 225 | 24.91 | 1/4 | p46 |
Top water assets
- 67Heart Riverriver
- 67Heart Riverriver
- 67Heart Riverriver
- 67Antelope Creekriver
- 67Heart Riverriver
- 67Heart Riverriver
- 67Heart Riverriver
- 67Heart Riverriver
- 67Heart Riverriver
- 67Heart Riverriver