Lower Heart HUC8 10130203
A 4,230 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
56
Moderate
Drought index
270
Severe
Area in D2+
70.14%
0% exceptional (D4)
Gauges below normal
50%
of 2 reporting
Median flow
53%
p21 of record
Water assets
916
4 springs · 263 wells
USGS gauges (5)
- HEART RIVER AT STARK BRIDGE NEAR JUDSON, ND0634830018 cfsp17 · below normal
- HEART RIVER NEAR MANDAN, ND0634900022 cfsp25 · normal
- ANTELOPE CREEK NEAR CARSON, ND06347000no readingno long-term record
- BIG MUDDY CREEK NEAR ALMONT, ND06347500no readingno long-term record
- SWEETBRIAR CREEK NEAR JUDSON, ND06348500no readingno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 270 | 70.14 | 1/2 | p21 |
| 2026-10-20 | 270 | 70.14 | 2/2 | p22 |
| 2026-10-19 | 270 | 70.14 | 0/2 | p26 |
| 2026-10-18 | 270 | 70.14 | 2/2 | p21 |
| 2026-10-17 | 270 | 70.14 | 2/2 | p23 |
| 2026-10-16 | 270 | 70.14 | 2/2 | p14 |
| 2026-10-15 | 270 | 70.14 | 2/2 | p17 |
| 2026-10-14 | 270 | 70.14 | 2/2 | p17 |
| 2026-10-13 | 270 | 70.14 | 2/2 | p19 |
| 2026-10-12 | 270 | 70.14 | 2/2 | p14 |
| 2026-10-11 | 270 | 70.14 | 2/2 | p14 |
| 2026-10-10 | 270 | 70.14 | 2/2 | p14 |
| 2026-10-09 | 270 | 70.14 | 2/2 | p16 |
| 2026-10-08 | 270 | 70.14 | 2/2 | p15 |
Top water assets
- 67Sweetbriar Creekriver
- 67Sweetbriar Creekriver
- 67Antelope Creekriver
- 67Heart Butte Creekriver
- 67Antelope Creekriver
- 67Sweetbriar Creekriver
- 67Heart Riverriver
- 67Antelope Creekriver
- 67Antelope Creekriver
- 67Hailstone Creekriver