Mahwah River near Suffern NY water level

Name: Mahwah River near Suffern NY water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Mahwah River, New York, United States

Directions

Below flood stage

Water level

1.78ft Steady over the last 24 hours

Measured Oct 20, 2026, 07:30 AM EDT (2 hours ago)

Flow: 10.4 cfs

History

7 days

Water level Minor flood stage

What this means

Water levels are unremarkable at Mahwah River near Suffern NY, where the gauge shows 1.78 ft.

It is 3.22 ft below the flood stage of 5.00 ft.

The level has held steady over the past 24 hours. The 30-day range is 1.78 ft – 2.02 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 9.70 ftSeptember 16, 1999

Paddling and fishing conditions

Most paddlers and anglers will find the river in good shape at this stage.

For reference, flood stage is 5.00 ft.

What happens at each level

10.60 ft: Major flooding along Mahwah River at Suffern. 8 feet of waters into homes basements. Major flooding in homes in the Squires Gate community along the Mahwah River, especially on Lonergan Drive.
7.00 ft: Moderate flooding along Mahwah River at Suffern communities. Moderate flooding in homes in the Squires Gate community along the Mahwah River, especially on Lonergan Drive.
5.00 ft: Minor flooding on homes along the Mahwah River at Suffern. Minor flooding in homes in the Squires Gate community along the Mahwah River, especially on Lonergan Drive.
1.78 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Rank	Level	Date
1	9.70 ft	September 16, 1999

Weather at the gauge

The forecast is not available right now.

Sunrise 07:14 AM Sunset 06:10 PM Daylight 10 hr, 56 min First quarter 68%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Ramapo River at SuffernRiver gauge, Ramapo River	2.93 ft	Below flood stage	−0.04 ft	2.8 mi
Ramapo River at RamapoRiver gauge, Ramapo River	2.28 ft	Below flood stage	−0.04 ft	2.8 mi
Ramapo River near Mahwah NJRiver gauge, Ramapo River	3.08 ft	Below flood stage	−0.06 ft	3.8 mi
Saddle River at Upper Saddle River NJRiver gauge, Saddle River	1.96 ft	Below flood stage	−0.02 ft	5.8 mi
Ringwood Creek near Wanaque NJRiver gauge, Ringwood Creek	8.9 cfs	Normal	−1.3 cfs	8 mi
Pascack Brook at Park Ridge NJRiver gauge, Pascack Brook	2.81 ft	Below flood stage	±0	8 mi
Hackensack River at West NyackRiver gauge, Hackensack River	38.8 cfs	High	+4.3 cfs	9 mi
Hohokus Brook at Ho-Ho-Kus NJRiver gauge, Hohokus Brook	1.45 ft	Below flood stage	−0.01 ft	10 mi

Questions and answers

What is flood stage for the Mahwah River near Suffern NY?

The official flood stage is 5.00 ft. The level is currently 3.22 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Mahwah River near Suffern NY today?

On Oct 20, 2026, 07:30 AM EDT, the water level was 1.78 ft. Steady over the last 24 hours.

Is Mahwah River near Suffern NY rising or falling?

Steady over the last 24 hours.

Is the level of Mahwah River near Suffern NY normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Mahwah River near Suffern NY?

The highest level on record is 9.70 ft on September 16, 1999.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01387450 (Agency page)
Coordinates: 41.14111, -74.11611 (WGS84)
Vertical datum: NGVD29
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	1.78 ft	2026-10-20 11:30	Provisional
Flow	10.4 cfs	2026-10-20 11:30	Provisional

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How to cite

U.S. Geological Survey: Mahwah River near Suffern NY (usgs:01387450). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-york/mahwah-river-near-suffern-ny

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer