This gauge is funded by the USGS. Note that flood stage is 11.5 feet above elevation (in Pompton Lakes). Note that the website is predictive and provides up to two days of advanced warning of higher than usual water surface elevations. Maximum discharge: 17,800 cubic feet per second, August 28, 2011; gauge height, 22.61 feet.
Note that this is not a predictive gauge. The flood elevation is not provided. Maximum discharge: 14,700 cubic feet per second, August 28, 2011; gauge height, 18.88 feet.
NOAA's data portal with real-time precipitation data. For reference, note the following key storm magnitudes: 2-year, 3.3 inches; 5-year, 4.3 inches, and 10-year, 5.1 inches.