Winter Storm Warning
2026-05-06T15:00:00-06:00

* WHAT...Snow tapering off from north to south this morning. Additional snow accumulations up to 2 inches, mainly south of I-70. * WHERE...Boulder, the Denver metro area, and Castle Rock. * WHEN...Until 3 PM MDT this afternoon. * IMPACTS...Heavy snow accumulating on trees may result in broken tree limbs, downed powerlines, and scattered power outages. Despite lesser accumulations on roadways, slick and hazardous conditions are still possible in bouts of heavier snow pushing across the Palmer Divide.

Ramapo River

Last Updated: May 6, 2026

Total streamflow across the Ramapo River was last observed at 332 cfs, and is expected to yield approximately 659 acre-ft of water today; about 32% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 1,031 cfs, with recent peaks last observed on 2011-08-29 when daily discharge volume was observed at 37,320 cfs.

Maximum discharge along the river is currently at the Ramapo River At Pompton Lakes Nj reporting a streamflow rate of 225 cfs. This is also the highest stage along the Ramapo River, with a gauge stage of 7.51 ft at this location. This river is monitored from 4 different streamgauging stations along the Ramapo River, the highest being situated at an altitude of 300 ft, the Ramapo River At Ramapo Ny.

The Ramapo River is a tributary of the Pompton River, located in northeastern New Jersey.


15-Day Long Term Forecast


River Details

Last Updated 2026-05-06
Discharge Volume 659 ACRE-FT
Streamflow 332.0 cfs
Past 24 Hours: -25.0 cfs (-7.0%)
Percent of Normal 32.2%
Maximum 37,320.0 cfs
2011-08-29
Seasonal Avg 1,031 cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Ramapo River At Ramapo Ny
USGS 01387400
107 cfs 2.3 ft -7.76
Ramapo River At Suffern Ny
USGS 01387420
91 cfs 2.94 ft -18.47
Ramapo River Near Mahwah Nj
USGS 01387500
101 cfs 3.12 ft -9.01
Ramapo River At Pompton Lakes Nj
USGS 01388000
225 cfs 7.51 ft -6.64
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

The Ramapo River is a tributary of the Pompton River, approximately 30 mi (48 km) long, in southern New York and northern New Jersey in the United States.