Tolt River Near Carnation, WA

USGS Site No: 12148500 • Tolt River • King County, WA

Tolt River Near Carnation, WA on the Tolt River is currently at 251 cfs (Low — 12th percentile for this date) . Gage height: 4.93 ft.

Reading from

251
CFS Discharge
4.93
Gage Height (ft)
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 243
25th Low threshold 323 Today: 251 cfs
50th (Median) Normal (median) 469
75th High threshold 684
95th Very High threshold 1,390

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.

2.1k 1k 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 236 4.88
May 27, 2026 240 4.90
May 26, 2026 249 4.92
May 25, 2026 256 4.95
May 24, 2026 263 4.97
May 23, 2026 272 5.00
May 22, 2026 281 5.03
May 21, 2026 294 5.07
May 20, 2026 310 5.11
May 19, 2026 333 5.18
May 18, 2026 360 5.25
May 17, 2026 423 5.40
May 16, 2026 493 5.55
May 15, 2026 392 5.33
Apr 20, 2026 576 5.71
Apr 19, 2026 554 5.67
Apr 18, 2026 546 5.65
Apr 17, 2026 559 5.68
Apr 16, 2026 575 5.71
Apr 15, 2026 800 6.06
Apr 14, 2026 515 5.59
Apr 13, 2026 508 5.58
Apr 12, 2026 390 5.33
Apr 11, 2026 407 5.37
Apr 10, 2026 411 5.38
Apr 9, 2026 423 5.41
Apr 8, 2026 459 5.48
Apr 7, 2026 535 5.63
Apr 6, 2026 560 5.68
Apr 5, 2026 533 5.63

Station Information

USGS Site No
12148500
State
WA
County
King County
Coordinates
47.6957, -121.8240
Drainage Area
81 mi²
Datum (ft)
348.0
HUC Code
17110010
View on USGS NWIS →

Recent Extremes

Max discharge
5,450 cfs
Mar 20, 2026
Min discharge
104 cfs
Oct 8, 2025

Computed from the local daily-values archive.

Nearby Gauges

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