How high is the Lewis River at Ariel, WA right now?

The Lewis River at Ariel, WA is currently flowing at 2,840 cubic feet per second with a gage height of 2.63 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Lewis River at Ariel, WA normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 32th percentile compared to the long-term historical record at this gauge.

What is the historical median flow for the Lewis River at Ariel, WA on June 11?

The long-term median discharge for this date is 3,490 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 1,830 to 8,670 cfs.

Where is the Lewis River at Ariel, WA stream gauge located?

The Lewis River at Ariel, WA stream gauge is operated by the USGS in Cowlitz County, WA on the Lewis River. USGS site number 14220500 (coordinates 45.9517, -122.5640).

Lewis River at Ariel, WA

USGS Site No: 14220500 • Lewis River • Cowlitz County, WA

Lewis River at Ariel, WA on the Lewis River is currently at 2,840 cfs (Normal — 32th percentile for this date) . Gage height: 2.63 ft.

Reading from 1 week ago

↑ Upstream on Lewis River

Lewis River Above Muddy River Near Cougar, WA

2,840

CFS Discharge

2.63

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	1,830
25th	Low threshold	2,590
50th (Median)	Normal (median)	3,490	Today: 2,840 cfs
75th	High threshold	5,030
95th	Very High threshold	8,670

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	2,830	2.62
May 27, 2026	2,820	2.62
May 26, 2026	2,830	2.62
May 25, 2026	2,830	2.62
May 24, 2026	2,830	2.62
May 23, 2026	2,830	2.62
May 22, 2026	2,830	2.62
May 21, 2026	2,830	2.62
May 20, 2026	2,830	2.62
May 19, 2026	2,830	2.63
May 18, 2026	2,830	2.63
May 17, 2026	2,830	2.62
May 16, 2026	2,840	2.63
May 15, 2026	2,840	2.63
Apr 20, 2026	2,800	2.60
Apr 19, 2026	2,800	2.60
Apr 18, 2026	2,800	2.60
Apr 17, 2026	2,780	2.59
Apr 16, 2026	2,780	2.59
Apr 15, 2026	2,780	2.59
Apr 14, 2026	2,780	2.59
Apr 13, 2026	2,780	2.59
Apr 12, 2026	2,780	2.59
Apr 11, 2026	2,780	2.59
Apr 10, 2026	2,780	2.59
Apr 9, 2026	2,810	2.61
Apr 8, 2026	2,850	2.64
Apr 7, 2026	2,850	2.64
Apr 6, 2026	2,910	2.67
Apr 5, 2026	3,600	3.08

Station Information

USGS Site No: 14220500
State: WA
County: Cowlitz County
Coordinates: 45.9517, -122.5640
Drainage Area: 731 mi²
Datum (ft): 48.2
HUC Code: 17080002

View on USGS NWIS →

Recent Extremes

Max discharge: 27,600 cfs

Dec 9, 2025
Min discharge: 1,250 cfs

Aug 3, 2025

Computed from the local daily-values archive.

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