USGS Streamgage 12458000
Icicle Creek above Snow Creek near Leavenworth, WA
Icicle Creek above Snow Creek near Leavenworth, WA is USGS streamgage 12458000 in Washington, monitoring river discharge in hydrologic subbasin 17020011. It drains a watershed of about 193 square miles. Discharge records at this site go back to 1912. Typical flow runs near 681.9 cfs in July and 595 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.
View live conditions & forecast →
Gauge details
- State
- Washington
- Drainage area
- 193 sq mi
- Gauge elevation
- 1,536 ft
- Subbasin (HUC-8)
- 17020011
- Coordinates
- 47.54092, -120.72006
- USGS site number
- 12458000
- Records begin
- 1912-05-20 (114 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Icicle Creek above Snow Creek near Leavenworth, 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 |
|---|---|---|---|---|
| 90 | 94.6 | 98.4 | ||
| 88 | 93.4 | 98.6 | ||
| 92 | 102 | 122 | ||
| 93.5 | 106 | 134 | ||
| 91 | 103 | 124 | ||
| 87.3 | 98.2 | 116 | ||
| 84.2 | 94.9 | 110 | ||
| 82.5 | 93 | 107 | ||
| 80.2 | 90.8 | 104 | ||
| 78.3 | 89 | 102 | ||
| 76.4 | 87.1 | 99.7 | ||
| 74.4 | 85.4 | 97.7 | ||
| 72.8 | 83.9 | 96.2 | ||
| 70.9 | 82.5 | 94.9 |
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 90 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 | 116.6 | 234.5 | 592 | |
| February | 119 | 216.9 | 621.7 | |
| March | 149.3 | 252.9 | 572.7 | |
| April | 301.3 | 595 | 1,166.1 | |
| May | 824.6 | 1,481.4 | 2,880.3 | |
| June | 816.4 | 1,647.3 | 2,920.7 | |
| July | 294.7 | 681.9 | 1,559 | |
| August | 132.5 | 203.1 | 417.4 | |
| September | 94.1 | 130 | 249.7 | |
| October | 77.9 | 161.1 | 502.7 | |
| November | 112.5 | 269.2 | 886.8 | |
| December | 119.4 | 269.3 | 678.3 |
All values in cubic feet per second (cfs).
Common questions
- When does Icicle Creek above Snow Creek near Leavenworth, WA normally run highest?
- June, on the long-term record. The median daily flow that month is about 1,647.3 cfs, against 130 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Icicle Creek above Snow Creek near Leavenworth, WA?
- It depends on the month. In January, half of days historically fall near 234.5 cfs, with the middle 80% of days between 116.6 and 592 cfs. The month-by-month table on this page gives the full range.
- How long has Icicle Creek above Snow Creek near Leavenworth, WA been measured?
- Discharge records at USGS site 12458000 begin in 1912, about 114 years, covering roughly 9,200 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Icicle Creek above Snow Creek near Leavenworth, 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. 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 Icicle Creek above Snow Creek near Leavenworth, WA?
- The gauge sits at 47.54092, -120.72006, in Washington, in hydrologic subbasin 17020011, at an elevation of about 1,536 feet, draining roughly 193 square miles.
- Can I use Icicle Creek above Snow Creek near Leavenworth, 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.