Middle North Platte-Casper HUC8 10180007
A 8,996 km² sub-basin of the Missouri 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
31
Stressed
Drought index
302
Extreme
Area in D2+
79.34%
0% exceptional (D4)
Gauges below normal
100%
of 1 reporting
Median flow
41%
p7 of record
Water assets
911
75 springs · 622 wells
USGS gauges (2)
- DEER CREEK IN CANYON, NEAR GLENROCK, WY066460003 cfsp7 · much below normal
- NORTH PLATTE RIVER AT ALCOVA, WY066420002,360 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 302 | 79.34 | 1/1 | p7 |
| 2026-10-20 | 302 | 79.34 | 1/1 | p7 |
| 2026-10-19 | 302 | 79.34 | 1/1 | p7 |
| 2026-10-18 | 302 | 79.34 | 1/1 | p8 |
| 2026-10-17 | 302 | 79.34 | 1/1 | p15 |
| 2026-10-16 | 302 | 79.34 | 0/1 | p31 |
| 2026-10-15 | 302 | 79.34 | 1/1 | p11 |
| 2026-10-14 | 302 | 79.34 | 1/1 | p8 |
| 2026-10-13 | 302 | 79.34 | 1/1 | p7 |
| 2026-10-12 | 302 | 79.34 | 1/1 | p5 |
| 2026-10-11 | 302 | 79.34 | 1/1 | p5 |
| 2026-10-10 | 302 | 79.34 | 1/1 | p5 |
| 2026-10-09 | 302 | 79.34 | 1/1 | p5 |
| 2026-10-08 | 302 | 79.34 | 1/1 | p5 |
Top water assets
- 70Mcmurry No. 4reservoir
- 69Middle Fork Casper Creekriver
- 69Dry Fork La Prele Creekriver
- 69La Prele Creekriver
- 69Deer Creek In Canyon, Near Glenrock, Wyriver
- 69West Fork Deer Creekriver
- 69Middle Fork Casper Creekriver
- 69Eastdale Creek Detention No.1reservoir
- 69North Platte River At Alcova, Wyriver
- 69Poison Spider Creekriver