How high is the Okanogan River Near Tonasket, WA right now?

The Okanogan River Near Tonasket, WA is currently flowing at 5,400 cubic feet per second with a gage height of 8.66 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Okanogan River Near Tonasket, WA normal for this time of year?

Current flow is classified as low for June 11. Today's discharge is at the 15th percentile compared to the long-term historical record at this gauge.

Is the Okanogan River Near Tonasket, WA at flood stage?

No — the gage height is 6.34 feet below the NWS flood-stage threshold of 15.0 feet.

What is the historical median flow for the Okanogan River Near Tonasket, WA on June 11?

The long-term median discharge for this date is 9,800 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 4,490 to 19,300 cfs.

Where is the Okanogan River Near Tonasket, WA stream gauge located?

The Okanogan River Near Tonasket, WA stream gauge is operated by the USGS in Okanogan County, WA on the Okanogan River. USGS site number 12445000 (coordinates 48.6324, -119.4617).

Okanogan River Near Tonasket, WA

USGS Site No: 12445000 • Okanogan River • Okanogan County, WA

Okanogan River Near Tonasket, WA on the Okanogan River is currently at 5,400 cfs (Low — 15th percentile for this date) . Gage height: 8.66 ft.

Reading from 1 week ago

↑ Upstream on Okanogan River

Okanogan River at Oroville, WA

Downstream on Okanogan River ↓

Okanogan River at Malott, WA

5,400

CFS Discharge

8.66

Gage Height (ft)

Low

Flow Condition

Normal

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	4,490
25th	Low threshold	7,220	Today: 5,400 cfs
50th (Median)	Normal (median)	9,800
75th	High threshold	13,000
95th	Very High threshold	19,300

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	5,130	8.49
May 27, 2026	5,240	8.56
May 26, 2026	5,240	8.56
May 25, 2026	5,250	8.56
May 24, 2026	5,130	8.48
May 23, 2026	5,090	8.46
May 22, 2026	5,180	8.52
May 21, 2026	5,330	8.62
May 20, 2026	5,680	8.83
May 19, 2026	6,160	9.12
May 18, 2026	6,640	9.40
May 17, 2026	7,320	9.78
May 16, 2026	8,320	10.31
May 15, 2026	9,410	10.90
Apr 20, 2026	4,880	8.32
Apr 19, 2026	4,980	8.39
Apr 18, 2026	5,240	8.56
Apr 17, 2026	5,570	8.76
Apr 16, 2026	5,890	8.96
Apr 15, 2026	6,140	9.11
Apr 14, 2026	5,820	8.92
Apr 13, 2026	5,110	8.47
Apr 12, 2026	4,560	8.10
Apr 11, 2026	4,140	7.81
Apr 10, 2026	3,900	7.64
Apr 9, 2026	3,800	7.56
Apr 8, 2026	3,640	7.44
Apr 7, 2026	3,280	7.16
Apr 6, 2026	3,130	7.04
Apr 5, 2026	3,120	7.03

Station Information

USGS Site No: 12445000
State: WA
County: Okanogan County
Coordinates: 48.6324, -119.4617
Drainage Area: 7,260 mi²
Datum (ft): 860.8
HUC Code: 17020006

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 14.0 ft
Flood Stage: 15.0 ft
Moderate Flood: 17.0 ft
Major Flood: 18.0 ft

Currently 6.34 ft below flood stage.

Recent Extremes

Max discharge: 10,600 cfs

Dec 12, 2025
Min discharge: 541 cfs

Sep 26, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Bonaparte Creek at Tonasket, WA
4.8 mi · 2 cfs

Very Low
Antoine Creek at Us Highway 97 Near Ellisforde, WA
9.1 mi · 1 cfs

Very Low
Johnson Creek Near Riverside, WA
9.8 mi · 3 cfs

Low
North Fork Salmon Creek Near Conconully, WA
14.5 mi · 33 cfs

Normal
West Fork Salmon Creek Near Conconully, WA
15.2 mi · 21 cfs

Very Low