Rivermatics

USGS Streamgage 12417650

Spokane River below Blackwell near Coeur D Alene, ID

Spokane River below Blackwell near Coeur D Alene, ID is USGS streamgage 12417650 in Idaho, monitoring river discharge in hydrologic subbasin 17010305. It sits on the Spokane River, alongside 5 other gauges Rivermatics tracks on the same river. It drains a watershed of about 3,702 square miles. Discharge records at this site go back to 2014. Typical flow runs near 1,340.2 cfs in July and 10,905.7 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.

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Gauge details

State
Idaho
Drainage area
3,702 sq mi
Gauge elevation
2,123 ft
Subbasin (HUC-8)
17010305
Coordinates
47.69472, -116.81528
USGS site number
12417650
Records begin
2014-07-22 (12 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Spokane River below Blackwell near Coeur D Alene, ID. 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
910 994 1,113
839 944 1,101
875 1,023 1,297
934 1,148 1,519
896 1,088 1,418
871 1,040 1,320
835 985 1,228
807 951 1,178
786 935 1,179
766 914 1,165
758 902 1,141
746 890 1,134
727 866 1,090
718 856 1,078

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 12 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 2,391 4,002.3 10,229.7
February 2,074.6 5,153.4 17,210.7
March 2,806.8 8,544.2 23,864.5
April 5,524.3 10,905.7 22,306.7
May 4,372.6 12,811.9 22,425.8
June 1,806.2 4,571 16,444.3
July 827.2 1,340.2 2,700
August 709.4 911.7 1,156.9
September 777.6 1,157 1,632.4
October 1,098.1 1,763.2 3,301
November 1,996.3 2,791.3 5,918.3
December 2,262.6 4,028.1 12,255.5

All values in cubic feet per second (cfs).

Common questions

When does Spokane River below Blackwell near Coeur D Alene, ID normally run highest?
May, on the long-term record. The median daily flow that month is about 12,811.9 cfs, against 911.7 cfs in August, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Spokane River below Blackwell near Coeur D Alene, ID?
It depends on the month. In January, half of days historically fall near 4,002.3 cfs, with the middle 80% of days between 2,391 and 10,229.7 cfs. The month-by-month table on this page gives the full range.
How long has Spokane River below Blackwell near Coeur D Alene, ID been measured?
Discharge records at USGS site 12417650 begin in 2014, about 12 years, covering roughly 4,397 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Spokane River below Blackwell near Coeur D Alene, ID?
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 Spokane River below Blackwell near Coeur D Alene, ID?
The gauge sits at 47.69472, -116.81528, in Idaho, in hydrologic subbasin 17010305, at an elevation of about 2,123 feet, draining roughly 3,702 square miles.
Can I use Spokane River below Blackwell near Coeur D Alene, ID 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.

Upstream and downstream on the Spokane River

Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Spokane River in full.

Other gauges in this subbasin