How high is the Columbia River at International Boundary right now?

The Columbia River at International Boundary is currently flowing at 172,000 cubic feet per second with a gage height of 110.74 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Columbia River at International Boundary normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 42th percentile compared to the long-term historical record at this gauge.

What is the historical median flow for the Columbia River at International Boundary on June 11?

The long-term median discharge for this date is 190,000 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 119,000 to 375,000 cfs.

Where is the Columbia River at International Boundary stream gauge located?

The Columbia River at International Boundary stream gauge is operated by the USGS in Stevens County, WA on the Columbia River. USGS site number 12399500 (coordinates 49.0007, -117.6294).

Columbia River at International Boundary

USGS Site No: 12399500 • Columbia River • Stevens County, WA

Columbia River at International Boundary on the Columbia River is currently at 172,000 cfs (Normal — 42th percentile for this date) . Gage height: 110.74 ft.

Reading from 1 week ago

Downstream on Columbia River ↓

Columbia River at Grand Coulee, WA

172,000

CFS Discharge

110.74

Gage Height (ft)

Normal

Flow Condition

N/A

Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile	Label	CFS Threshold	Today's Flow
10th	Very Low threshold	119,000
25th	Low threshold	137,000
50th (Median)	Normal (median)	190,000	Today: 172,000 cfs
75th	High threshold	276,000
95th	Very High threshold	375,000

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 28, 2026	157,000	103.58
May 27, 2026	149,000	102.86
May 26, 2026	146,000	102.54
May 25, 2026	141,000	102.10
May 24, 2026	141,000	102.10
May 23, 2026	142,000	102.22
May 22, 2026	143,000	102.31
May 21, 2026	148,000	102.75
May 20, 2026	153,000	103.27
May 19, 2026	161,000	104.00
May 18, 2026	164,000	104.22
May 17, 2026	165,000	104.25
May 16, 2026	163,000	104.10
May 15, 2026	159,000	103.71
Apr 20, 2026	110,000	99.10
Apr 19, 2026	108,000	98.88
Apr 18, 2026	107,000	98.82
Apr 17, 2026	102,000	98.22
Apr 16, 2026	103,000	98.40
Apr 15, 2026	105,000	98.62
Apr 14, 2026	105,000	98.56
Apr 13, 2026	103,000	98.34
Apr 12, 2026	101,000	98.20
Apr 11, 2026	101,000	98.20
Apr 10, 2026	101,000	98.11
Apr 9, 2026	97,500	97.78
Apr 8, 2026	102,000	98.23
Apr 7, 2026	99,300	97.95
Apr 6, 2026	100,000	98.11
Apr 5, 2026	98,700	97.89

Station Information

USGS Site No: 12399500
State: WA
County: Stevens County
Coordinates: 49.0007, -117.6294
Drainage Area: 59,700 mi²
Datum (ft): 1,202.8
HUC Code: 17020001

View on USGS NWIS →

Recent Extremes

Max discharge: 165,000 cfs

May 17, 2026
Min discharge: 58,100 cfs

Apr 27, 2025

Computed from the local daily-values archive.

Nearby Gauges

Pend Oreille River at International Boundary
12.5 mi · 45,700 cfs

Normal
Pend Oreille River Below Box Canyon Near Ione, WA
18.0 mi · 54,100 cfs

Normal
Kettle River Near Laurier, WA
26.6 mi · 6,320 cfs

Low
Colville River at Kettle Falls, WA
34.3 mi · 164 cfs

Low
Boundary Creek near Porthill ID
48.1 mi · 490 cfs

Normal