How high is the East Branch Ausable River at Au Sable Forks NY right now?

The East Branch Ausable River at Au Sable Forks NY is currently flowing at 247 cubic feet per second with a gage height of 1.86 feet, based on the most recent USGS instantaneous reading.

Is the flow on the East Branch Ausable River at Au Sable Forks NY normal for this time of year?

Current flow is classified as normal for June 11. Today's discharge is at the 59th percentile compared to the long-term historical record at this gauge.

Is the East Branch Ausable River at Au Sable Forks NY at flood stage?

No — the gage height is 5.14 feet below the NWS flood-stage threshold of 7.0 feet.

What is the historical median flow for the East Branch Ausable River at Au Sable Forks NY on June 11?

The long-term median discharge for this date is 204 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 89 to 643 cfs.

Where is the East Branch Ausable River at Au Sable Forks NY stream gauge located?

The East Branch Ausable River at Au Sable Forks NY stream gauge is operated by the USGS in Essex County, NY on the East Branch Ausable River. USGS site number 04275000 (coordinates 44.4382, -73.6810).

East Branch Ausable River at Au Sable Forks NY

USGS Site No: 04275000 • East Branch Ausable River • Essex County, NY

East Branch Ausable River at Au Sable Forks NY on the East Branch Ausable River is currently at 247 cfs (Normal — 59th percentile for this date) . Gage height: 1.86 ft.

Reading from 1 week ago

247

CFS Discharge

1.86

Gage Height (ft)

Normal

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	89
25th	Low threshold	123
50th (Median)	Normal (median)	204
75th	High threshold	323	Today: 247 cfs
95th	Very High threshold	643

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	316	—
May 27, 2026	454	—
May 26, 2026	747	—
May 25, 2026	778	—
May 24, 2026	284	—
May 23, 2026	206	—
May 22, 2026	238	—
May 21, 2026	283	—
May 20, 2026	346	—
May 19, 2026	438	—
May 18, 2026	539	—
May 17, 2026	614	—
May 16, 2026	1,030	—
May 15, 2026	1,830	—
Apr 21, 2026	494	—
Apr 20, 2026	689	—
Apr 19, 2026	922	—
Apr 18, 2026	1,280	—
Apr 17, 2026	2,640	—
Apr 16, 2026	1,550	—
Apr 15, 2026	2,110	—
Apr 14, 2026	1,310	—
Apr 13, 2026	473	—
Apr 12, 2026	451	—
Apr 11, 2026	503	—
Apr 10, 2026	337	—
Apr 9, 2026	367	—
Apr 8, 2026	410	—
Apr 7, 2026	585	—
Apr 6, 2026	929	—

Station Information

USGS Site No: 04275000
State: NY
County: Essex County
Coordinates: 44.4382, -73.6810
Drainage Area: 198 mi²
Datum (ft): 544.9
HUC Code: 043001040105

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 6.0 ft
Flood Stage: 7.0 ft
Moderate Flood: 9.0 ft
Major Flood: 11.0 ft

Currently 5.14 ft below flood stage.

Recent Extremes

Max discharge: 3,780 cfs

Mar 12, 2026
Min discharge: 39 cfs

Sep 22, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

Ausable River Near Au Sable Forks NY
2.1 mi · 606 cfs

Normal
White Brook Near Wilmington NY
9.3 mi · 3 cfs

Normal
Little Ausable River Near Valcour NY
14.1 mi · 46 cfs

Normal
Boquet River at Willsboro NY
15.2 mi · 264 cfs

Normal
Salmon River at South Plattsburgh NY
16.7 mi · 52 cfs

Normal