Rivermatics

USGS Streamgage 12147470

NF Tolt River above Yellow Creek near Carnation, WA

NF Tolt River above Yellow Creek near Carnation, WA is USGS streamgage 12147470 in Washington, monitoring river discharge in hydrologic subbasin 17110010. It drains a watershed of about 33 square miles. Discharge records at this site go back to 2015. Typical flow runs near 84.2 cfs in July and 314.2 cfs in April, with the higher of the two arriving in April. 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
33 sq mi
Gauge elevation
1,122 ft
Subbasin (HUC-8)
17110010
Coordinates
47.71972, -121.7432
USGS site number
12147470
Records begin
2015-10-01 (11 years)
Rivermatics forecast
14-day flow outlook + water temperature

14-day flow forecast

Based on observations through for NF Tolt River above Yellow Creek near Carnation, 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.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
16.2 17.2 18.5
15.9 17.3 19.2
22.4 42.4 109
26.6 48.6 103
22.4 34.1 59.5
19.6 25.8 37.2
17.5 21.8 29.4
16.3 19.9 25.9
15.5 18.8 24.1
15.6 18.8 23.8
15.6 18.7 23.2
15.3 18.3 22.8
14.3 17.2 21.3
13.5 16.3 19.9

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 11 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January 151.9 356.5 1,315.3
February 127.6 282.4 1,463.3
March 137.5 290.3 1,188.3
April 185.5 314.2 738.6
May 153.7 326.3 584.9
June 100.5 193.9 506.1
July 50 84.2 160.7
August 27.9 44.9 126.9
September 22.4 41 237.2
October 33.8 164.1 861.5
November 124.1 338.4 1,333.1
December 143.5 335 1,435.2

All values in cubic feet per second (cfs).

Common questions

When does NF Tolt River above Yellow Creek near Carnation, WA normally run highest?
January, on the long-term record. The median daily flow that month is about 356.5 cfs, against 41 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 NF Tolt River above Yellow Creek near Carnation, WA?
It depends on the month. In January, half of days historically fall near 356.5 cfs, with the middle 80% of days between 151.9 and 1,315.3 cfs. The month-by-month table on this page gives the full range.
How long has NF Tolt River above Yellow Creek near Carnation, WA been measured?
Discharge records at USGS site 12147470 begin in 2015, about 11 years, covering roughly 3,963 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for NF Tolt River above Yellow Creek near Carnation, 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 NF Tolt River above Yellow Creek near Carnation, WA?
The gauge sits at 47.71972, -121.7432, in Washington, in hydrologic subbasin 17110010, at an elevation of about 1,122 feet, draining roughly 33 square miles.
Can I use NF Tolt River above Yellow Creek near Carnation, 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