Is the flow on the Wynoochee River Above Black Creek near Montesano, WA normal for this time of year?

Current flow is classified as low for June 11. Today's discharge is at the 19th percentile compared to the long-term historical record at this gauge.

Is the Wynoochee River Above Black Creek near Montesano, WA at flood stage?

No — the gage height is 15.15 feet below the NWS flood-stage threshold of 42.5 feet.

What is the historical median flow for the Wynoochee River Above Black Creek near Montesano, WA on June 11?

The long-term median discharge for this date is 397 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 261 to 1,170 cfs.

Where is the Wynoochee River Above Black Creek near Montesano, WA stream gauge located?

The Wynoochee River Above Black Creek near Montesano, WA stream gauge is operated by the USGS in Grays Harbor County, WA on the Wynoochee River. USGS site number 12037400 (coordinates 47.0115, -123.6554).

Wynoochee River Above Black Creek near Montesano, WA

USGS Site No: 12037400 • Wynoochee River • Grays Harbor County, WA

Wynoochee River Above Black Creek near Montesano, WA on the Wynoochee River is currently at 292 cfs (Low — 19th percentile for this date) . Gage height: 27.35 ft.

Reading from 1 week ago

↑ Upstream on Wynoochee River

Wynoochee River Above Save Creek Near Aberdeen, WA

292

CFS Discharge

27.35

Gage Height (ft)

Low

Flow Condition

Normal

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	261
25th	Low threshold	312	Today: 292 cfs
50th (Median)	Normal (median)	397
75th	High threshold	629
95th	Very High threshold	1,170

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	304	27.38
May 27, 2026	321	27.43
May 26, 2026	341	27.48
May 25, 2026	317	27.42
May 24, 2026	307	27.39
May 23, 2026	312	27.41
May 22, 2026	317	27.42
May 21, 2026	325	27.44
May 20, 2026	332	27.46
May 19, 2026	340	27.48
May 18, 2026	356	27.52
May 17, 2026	388	27.61
May 16, 2026	440	27.73
May 15, 2026	384	27.59
Apr 20, 2026	—	28.09
Apr 19, 2026	719	28.17
Apr 18, 2026	764	28.25
Apr 17, 2026	828	28.37
Apr 16, 2026	993	28.65
Apr 15, 2026	1,210	28.99
Apr 14, 2026	714	28.15
Apr 13, 2026	640	28.02
Apr 12, 2026	703	28.14
Apr 11, 2026	730	28.19
Apr 10, 2026	722	28.18
Apr 9, 2026	759	28.24
Apr 8, 2026	802	28.32
Apr 7, 2026	848	28.41
Apr 6, 2026	903	28.50
Apr 5, 2026	960	28.60

Station Information

USGS Site No: 12037400
State: WA
County: Grays Harbor County
Coordinates: 47.0115, -123.6554
Drainage Area: 155 mi²
Datum (ft): 0.0
HUC Code: 17100104

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 39.0 ft
Flood Stage: 42.5 ft
Moderate Flood: 43.5 ft
Major Flood: 44.5 ft

Currently 15.15 ft below flood stage.

Recent Extremes

Max discharge: 13,200 cfs

Dec 10, 2025
Min discharge: 183 cfs

Sep 17, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Satsop River Near Satsop, WA
7.6 mi · 614 cfs

Normal
Chehalis River at Porter, WA
16.8 mi · 949 cfs

Normal
Wynoochee River Above Save Creek Near Aberdeen, WA
19.9 mi · 308 cfs

Low
Humptulips River Below Highway 101 near Humptulips, WA
21.3 mi · 292 cfs

Normal
Willapa River Near Willapa, WA
24.9 mi · 113 cfs

Normal