USGS Streamgage 12448998
Twisp River near Twisp, WA
Twisp River near Twisp, WA is USGS streamgage 12448998 in Washington, monitoring river discharge in hydrologic subbasin 17020008. It drains a watershed of about 245 square miles. Discharge records at this site go back to 1948. Typical flow runs near 274.3 cfs in July and 318.1 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Washington
- Drainage area
- 245 sq mi
- Gauge elevation
- 1,653 ft
- Subbasin (HUC-8)
- 17020008
- Coordinates
- 48.36987, -120.14869
- USGS site number
- 12448998
- Records begin
- 1948-05-29 (78 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 50 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 | 34.1 | 60.1 | 144.5 | |
| February | 36.2 | 66.4 | 167.8 | |
| March | 49.2 | 99.2 | 266.2 | |
| April | 113.5 | 318.1 | 644.8 | |
| May | 399.1 | 797.9 | 1,719.5 | |
| June | 320.2 | 826.9 | 1,582.7 | |
| July | 97.4 | 274.3 | 769.5 | |
| August | 28 | 70.1 | 177.7 | |
| September | 20.7 | 41.2 | 79 | |
| October | 36.4 | 56.4 | 116.9 | |
| November | 44.5 | 80.2 | 224.3 | |
| December | 39.5 | 71.7 | 193.6 |
All values in cubic feet per second (cfs).