Is the flow on the Sf Tolt River below Regulating Basin near Carnation, WA normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 36th percentile compared to the long-term historical record at this gauge.

What is the historical median flow for the Sf Tolt River below Regulating Basin near Carnation, WA on June 11?

The long-term median discharge for this date is 90 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 71 to 470 cfs.

Where is the Sf Tolt River below Regulating Basin near Carnation, WA stream gauge located?

The Sf Tolt River below Regulating Basin near Carnation, WA stream gauge is operated by the USGS in King County, WA on the Sf Tolt River. USGS site number 12148300 (coordinates 47.6968, -121.7873).

Sf Tolt River below Regulating Basin near Carnation, WA

USGS Site No: 12148300 • Sf Tolt River • King County, WA

Sf Tolt River below Regulating Basin near Carnation, WA on the Sf Tolt River is currently at 83 cfs (Normal — 36th percentile for this date) . Gage height: 3.35 ft.

Reading from 1 week ago

CFS Discharge

3.35

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	71
25th	Low threshold	77
50th (Median)	Normal (median)	90	Today: 83 cfs
75th	High threshold	199
95th	Very High threshold	470

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	80	3.33
May 27, 2026	81	3.34
May 26, 2026	82	3.34
May 25, 2026	82	3.35
May 24, 2026	83	3.35
May 23, 2026	83	3.35
May 22, 2026	82	3.35
May 21, 2026	84	3.35
May 20, 2026	85	3.37
May 19, 2026	86	3.37
May 18, 2026	88	3.39
May 17, 2026	91	3.41
May 16, 2026	95	3.44
May 15, 2026	90	3.40
Apr 20, 2026	109	3.54
Apr 19, 2026	111	3.55
Apr 18, 2026	114	3.57
Apr 17, 2026	120	3.61
Apr 16, 2026	121	3.62
Apr 15, 2026	131	3.67
Apr 14, 2026	104	3.50
Apr 13, 2026	106	3.52
Apr 12, 2026	95	3.44
Apr 11, 2026	96	3.45
Apr 10, 2026	98	3.46
Apr 9, 2026	100	3.48
Apr 8, 2026	103	3.50
Apr 7, 2026	108	3.53
Apr 6, 2026	113	3.56
Apr 5, 2026	115	3.58

Station Information

USGS Site No: 12148300
State: WA
County: King County
Coordinates: 47.6968, -121.7873
Drainage Area: 30 mi²
Datum (ft): 646.8
HUC Code: 17110010

View on USGS NWIS →

Recent Extremes

Max discharge: 1,360 cfs

Mar 20, 2026
Min discharge: 60 cfs

Oct 8, 2025

Computed from the local daily-values archive.

Nearby Gauges

Boxley Creek Near Edgewick, WA
17.3 mi · 61 cfs

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

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

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

Low
Taylor Creek Near Selleck, WA
21.6 mi · 69 cfs

Normal