How high is the South Fork Tolt River Near Index, WA right now?

The South Fork Tolt River Near Index, WA is currently flowing at 17 cubic feet per second with a gage height of 1.07 feet, based on the most recent USGS instantaneous reading.

Is the flow on the South Fork Tolt River Near Index, WA normal for this time of year?

Current flow is classified as very low for June 11. Today's discharge is at the 8th percentile compared to the long-term historical record at this gauge.

What is the historical median flow for the South Fork Tolt River Near Index, WA on June 11?

The long-term median discharge for this date is 57 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 23 to 164 cfs.

Where is the South Fork Tolt River Near Index, WA stream gauge located?

The South Fork Tolt River Near Index, WA stream gauge is operated by the USGS in King County, WA on the South Fork Tolt River. USGS site number 12147600 (coordinates 47.7068, -121.6001).

South Fork Tolt River Near Index, WA

USGS Site No: 12147600 • South Fork Tolt River • King County, WA

South Fork Tolt River Near Index, WA on the South Fork Tolt River is currently at 17 cfs (Very Low — 8th percentile for this date) . Gage height: 1.07 ft.

Reading from 1 week ago

Downstream on South Fork Tolt River ↓

South Fork Tolt River Near Carnation, WA

CFS Discharge

1.07

Gage Height (ft)

Very Low

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	23	Today: 17 cfs
25th	Low threshold	39
50th (Median)	Normal (median)	57
75th	High threshold	87
95th	Very High threshold	164

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	13	0.97
May 27, 2026	13	0.97
May 26, 2026	15	1.01
May 25, 2026	16	1.05
May 24, 2026	18	1.09
May 23, 2026	20	1.13
May 22, 2026	21	1.15
May 21, 2026	23	1.18
May 20, 2026	25	1.22
May 19, 2026	29	1.29
May 18, 2026	35	1.37
May 17, 2026	48	1.52
May 16, 2026	66	1.70
May 15, 2026	66	1.69
Apr 20, 2026	70	1.73
Apr 19, 2026	56	1.60
Apr 18, 2026	41	1.45
Apr 17, 2026	36	1.39
Apr 14, 2026	64	1.65
Apr 13, 2026	51	1.55
Apr 12, 2026	27	1.26
Apr 11, 2026	29	1.28
Apr 10, 2026	27	1.25
Apr 9, 2026	28	1.26
Apr 8, 2026	34	1.35
Apr 7, 2026	50	1.54
Apr 6, 2026	52	1.56
Apr 5, 2026	38	1.41
Apr 4, 2026	32	1.33
Apr 3, 2026	35	1.37

Station Information

USGS Site No: 12147600
State: WA
County: King County
Coordinates: 47.7068, -121.6001
Drainage Area: 5 mi²
Datum (ft): 1,838.8
HUC Code: 17110010

View on USGS NWIS →

Recent Extremes

Max discharge: 867 cfs

Dec 10, 2025
Min discharge: 4 cfs

Sep 28, 2025

Computed from the local daily-values archive.

Nearby Gauges

Boxley Creek Near Edgewick, WA
18.9 mi · 61 cfs

Normal
Canyon Creek Near Cedar Falls, WA
21.3 mi · 27 cfs

Normal
Cedar River at Powerplant at Cedar Falls, WA
21.6 mi · 122 cfs

High
Cedar River at Cedar Falls, WA
21.9 mi · 115 cfs

Low
Cedar River Near Cedar Falls, WA
23.3 mi · 0 cfs

Unknown