USGS Streamgage 06642000
North Platte River at Alcova, WY
North Platte River at Alcova, WY is USGS streamgage 06642000 in Wyoming, monitoring river discharge in hydrologic subbasin 10180007. It drains a watershed of about 10,812 square miles. Discharge records at this site go back to 1904. Typical flow runs near 2,467.1 cfs in July and 663.3 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Wyoming
- Drainage area
- 10,812 sq mi
- Gauge elevation
- 5,306 ft
- Subbasin (HUC-8)
- 10180007
- Coordinates
- 42.57411, -106.69259
- USGS site number
- 06642000
- Records begin
- 1904-03-01 (122 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 95 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 3.9 | 563.3 | 912.9 | |
| February | 3.6 | 520.6 | 921.4 | |
| March | 3.7 | 514.2 | 1,330.9 | |
| April | 3 | 663.3 | 2,232 | |
| May | 28.5 | 1,322.4 | 3,787.1 | |
| June | 304.2 | 1,824.7 | 4,956 | |
| July | 1,095.2 | 2,467.1 | 5,241.6 | |
| August | 1,061.3 | 2,622.3 | 4,793.9 | |
| September | 314.3 | 1,317.9 | 2,891.3 | |
| October | 4.9 | 583.1 | 1,427.1 | |
| November | 4.3 | 581.9 | 1,148.6 | |
| December | 4.3 | 559.3 | 944.5 |
All values in cubic feet per second (cfs).