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Wanaque River







WANAQUE RIVER

RIVER LEVELS
March 2, 2025

Winter Storm Watch
2025-03-04T17:00:00-07:00

...WINTER STORM TO BRING STRONG WINDS AND HEAVY SNOWFALL TO THE FRONT RANGE MOUNTAINS AND EASTERN PLAINS... .A strong storm will move across the state Monday night and Tuesday. Precipitation will begin as rain across the lower elevations and then switch to snow Monday night with all snow by Tuesday morning. Snowfall forecast for areas along and north of I-76 is highly uncertain due to the storm track and when the change over to snow occurs. Very windy conditions are also expected to develop with this storm with gusts to 60 mph possible over the eastern plains. The strong winds and snowfall will produce considerable blowing and drifting snow with blizzard conditions possible. The worst conditions are expected to be south of Denver over the Palmer Divide and also east of Denver on I-70. Travel in these areas may become very difficult to impossible due to the blowing and drifting snow. For the mountains, snow forms Monday afternoon and will possibly be very heavy late Monday afternoon and evening as the main storm crosses the state. Snow is expected to continue through Tuesday, though the intensity is expected to lighten up. Winds to 60 mph over the higher passes are expected to produce blowing and drifting snow. * WHAT...Heavy snow and blowing snow possible. Total snow accumulations between 4 and 10 inches possible. Wind gusts as high as 60 mph may produce significant blowing and drifting snow. * WHERE...Castle Rock, Byers, Limon, Southern Lincoln County, and Akron. * WHEN...From Monday evening through Tuesday afternoon. * IMPACTS...Snow covered roads will make travel hazardous, with the possibility of very difficult or impossible travel. Visibility may be near zero at times resulting in white out conditions. Travel will be treacherous and potentially life-threatening.


TOTAL RIVER DISCHARGE

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Total streamflow across the Wanaque River was last observed at 50 cfs, and is expected to yield approximately 99 acre-ft of water today; about 59% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 84 cfs, with recent peaks last observed on 2011-09-09 when daily discharge volume was observed at 3,790 cfs.

Maximum discharge along the river is currently at the Wanaque River At Awosting Nj reporting a streamflow rate of 53.3 cfs. This is also the highest stage along the Wanaque River, with a gauge stage of 2.3 ft at this location. This river is monitored from 2 different streamgauging stations along the Wanaque River, the highest being situated at an altitude of 603 ft, the Wanaque River At Awosting Nj.

The Wanaque River is a 16-mile-long tributary of the Passaic River in northern New Jersey, USA. The river was named by the Lenape people, who called it "Wan-e-ki," meaning "place of the sassafras." The river flows through a heavily populated urban and suburban area and is prone to flooding. The Wanaque Reservoir, completed in 1928, is located on the river and is the second-largest reservoir in New Jersey. The reservoir provides water to more than two million people in northern New Jersey. The Monksville Reservoir, completed in 1987, is also located on the river and is used for recreational activities such as fishing, boating, and hiking. The Wanaque River is an important source of water for agriculture in the region, with many farms located along its banks. Despite its importance, the Wanaque River has faced pollution and environmental challenges over the years, including industrial waste and sewage discharges.

Last Updated 2025-03-01
Discharge Volume 99 ACRE-FT
Streamflow 49.7 cfs
+1.1 cfs (+2.26%)
Percent of Normal 58.83%
Maximum 3,790.0 cfs
2011-09-09
Seasonal Avg 84 cfs

YEAR OVER YEAR DISCHARGE (CFS)

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Streamflow Conditions
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Wanaque River At Awosting Nj
USGS 01383500
53 cfs 2.3 ft 2.26
Wanaque R At Wanaque Nj
USGS 01387000
12 cfs 1.28 ft 0
History of the River
Created with Highcharts 8.0.0Annual Peak Discharge(cfs)201020122014201620182020202220242026101001k10k

The Wanaque River (Native American for "place of the sassafras") is a tributary of the Pequannock River in Passaic County in northern New Jersey in the United States.Once known as the Long Pond River, the source of the Wanaque River is Greenwood Lake, once known as Long Pond (not to be confused with the nearby village of Greenwood Lake in the state of New York).Both Greenwood Lake and the surrounding Sterling Forest watershed straddle the border of the states of New Jersey and New York.Downstream, the construction of dams at Monks and Wanaque created the Monksville and Wanaque reservoirs, respectively.From the Raymond Dam of the Wanaque Reservoir, the river flows to its confluence with the Pequannock River.

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