USGS Streamgage 12172000
Big Beaver Creek near Newhalem, WA
Big Beaver Creek near Newhalem, WA is USGS streamgage 12172000 in Washington, monitoring river discharge in hydrologic subbasin 17110005. It drains a watershed of about 63 square miles. Discharge records at this site go back to 1940. Typical flow runs near 548.9 cfs in July and 331.5 cfs in April, with the higher of the two arriving in July. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead, alongside daily high and low water-temperature forecasts.
View live conditions & forecast →
Gauge details
- State
- Washington
- Drainage area
- 63 sq mi
- Gauge elevation
- 1,621 ft
- Subbasin (HUC-8)
- 17110005
- Coordinates
- 48.77759, -121.07343
- USGS site number
- 12172000
- Records begin
- 1940-03-01 (86 years)
- Rivermatics forecast
- 14-day flow outlook + water temperature
14-day flow forecast
Based on observations through for Big Beaver Creek near Newhalem, WA. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.
| Date | Low p10 | Expected p50 | High p90 | Range |
|---|---|---|---|---|
| 99 | 109 | 119 | ||
| 93.7 | 108 | 124 | ||
| 86.4 | 104 | 122 | ||
| 83.7 | 102 | 121 | ||
| 77.1 | 96.4 | 117 | ||
| 75.1 | 94.9 | 117 | ||
| 71 | 92.4 | 117 | ||
| 69.8 | 91.8 | 118 | ||
| 70.4 | 94.3 | 124 | ||
| 69.2 | 92.8 | 122 | ||
| 65.5 | 88.5 | 117 | ||
| 75.6 | 105 | 151 | ||
| 97.7 | 153 | 245 | ||
| 86.9 | 139 | 231 |
All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 86 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 | 97 | 183.4 | 467.8 | |
| February | 85.6 | 147.6 | 463.9 | |
| March | 89.5 | 160.8 | 388.5 | |
| April | 182.5 | 331.5 | 657.8 | |
| May | 371.1 | 691.9 | 1,306.6 | |
| June | 453.4 | 752.8 | 1,441 | |
| July | 316 | 548.9 | 950.4 | |
| August | 209.9 | 320 | 533.1 | |
| September | 139.2 | 222.4 | 468.9 | |
| October | 105.1 | 238.7 | 766.5 | |
| November | 122.5 | 267.5 | 886.4 | |
| December | 122.4 | 245.5 | 792.3 |
All values in cubic feet per second (cfs).
Common questions
- When does Big Beaver Creek near Newhalem, WA normally run highest?
- June, on the long-term record. The median daily flow that month is about 752.8 cfs, against 147.6 cfs in February, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Big Beaver Creek near Newhalem, WA?
- It depends on the month. In January, half of days historically fall near 183.4 cfs, with the middle 80% of days between 97 and 467.8 cfs. The month-by-month table on this page gives the full range.
- How long has Big Beaver Creek near Newhalem, WA been measured?
- Discharge records at USGS site 12172000 begin in 1940, about 86 years, covering roughly 2,964 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Big Beaver Creek near Newhalem, WA?
- Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. A companion model forecasts each day's water-temperature high and low. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
- Where is Big Beaver Creek near Newhalem, WA?
- The gauge sits at 48.77759, -121.07343, in Washington, in hydrologic subbasin 17110005, at an elevation of about 1,621 feet, draining roughly 63 square miles.
- Can I use Big Beaver Creek near Newhalem, WA data for flood or safety decisions?
- No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.
Other gauges in this subbasin
- Ruby Creek below Panther Creek near Newhalem, WA
- Thunder Creek near Newhalem, WA
- Skagit River at Newhalem, WA
- Newhalem Creek near Newhalem, WA
- Newhalem Creek at Newhalem, WA
- Skagit River below Babcock Creek near Newhalem, WA
- Skagit River below Damnation Creek near Marblemount, WA
- Skagit River above Alma Creek near Marblemount, WA