How high is the Chehalis River Near Adna, WA right now?

The Chehalis River Near Adna, WA is currently flowing at 601 cubic feet per second with a gage height of 193.71 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Chehalis River Near Adna, WA normal for this time of year?

Current flow is classified as very high for June 11. Today's discharge is at the 95th percentile compared to the long-term historical record at this gauge.

What is the historical median flow for the Chehalis River Near Adna, WA on June 11?

The long-term median discharge for this date is 297 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 117 to unavailable cfs.

Where is the Chehalis River Near Adna, WA stream gauge located?

The Chehalis River Near Adna, WA stream gauge is operated by the USGS in Lewis County, WA on the Chehalis River. USGS site number 12021800 (coordinates 46.6257, -123.1018).

Chehalis River Near Adna, WA

USGS Site No: 12021800 • Chehalis River • Lewis County, WA

Chehalis River Near Adna, WA on the Chehalis River is currently at 601 cfs (Very High — 95th percentile for this date) . Gage height: 193.71 ft.

Reading from 1 week ago

↑ Upstream on Chehalis River

Chehalis River Near Doty, WA

Downstream on Chehalis River ↓

Chehalis River Near Grand Mound, WA

601

CFS Discharge

193.71

Gage Height (ft)

Very High

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
10th	Very Low threshold	117
25th	Low threshold	164
50th (Median)	Normal (median)	297
75th	High threshold	399
95th	Very High threshold	0

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	628	193.77
May 27, 2026	666	193.85
May 26, 2026	684	193.88
May 25, 2026	642	193.80
May 24, 2026	653	193.82
May 23, 2026	670	193.85
May 22, 2026	692	193.90
May 21, 2026	723	193.96
May 20, 2026	754	194.02
May 19, 2026	792	194.09
May 18, 2026	867	194.23
May 17, 2026	1,010	194.47
May 16, 2026	1,020	194.49
May 15, 2026	794	194.10
Apr 20, 2026	1,300	194.94
Apr 19, 2026	1,440	195.14
Apr 18, 2026	1,610	195.39
Apr 17, 2026	1,850	195.72
Apr 16, 2026	2,300	196.32
Apr 15, 2026	2,900	197.03
Apr 14, 2026	1,050	194.54
Apr 13, 2026	1,010	194.48
Apr 12, 2026	1,080	194.60
Apr 11, 2026	1,110	194.64
Apr 10, 2026	1,020	194.51
Apr 9, 2026	1,060	194.56
Apr 8, 2026	1,100	194.63
Apr 7, 2026	1,160	194.72
Apr 6, 2026	1,220	194.82
Apr 5, 2026	1,280	194.91

Station Information

USGS Site No: 12021800
State: WA
County: Lewis County
Coordinates: 46.6257, -123.1018
Drainage Area: 340 mi²
Datum (ft): 0.0
HUC Code: 17100103

View on USGS NWIS →

Recent Extremes

Max discharge: 17,200 cfs

Dec 9, 2025
Min discharge: 33 cfs

Sep 20, 2025

Computed from the local daily-values archive.

Nearby Gauges

Newaukum River Near Chehalis, WA
7.4 mi · 139 cfs

Normal
Chehalis River Near Doty, WA
8.4 mi · 147 cfs

Normal
Elk Creek Below Deer Creek Near Doty, WA
9.3 mi · 0 cfs

Unknown
Chehalis River Near Grand Mound, WA
10.8 mi · 606 cfs

Normal
South Fork Chehalis River Near Wildwood, WA
12.5 mi · 0 cfs

Unknown