Millstone River at Weston, NJ

River level and flood forecast · Somerset County

Normal5.5 ftas of Mon 11:45 PM

The river is 6.0 ft below flood stage (11.5 ft).

The last 7 days and the forecast

051015WedThuFriSatSunMonTueAction 10 ftFlood 11.5 ftModerate 13 ftNowObserved (ft)NWS forecast

NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.

Get flood alerts for this river

An email when the National Weather Service forecasts Millstone River at Weston to flood, when it floods, and when it's over.

Free, no account. Email when the NWS forecasts this river to flood, when it floods, and when it's over. Every email has a stop link.

Flood stages

Major flood stage17 ft
Moderate flood stage13 ft
Flood stage11.5 ft
Action stage10 ft
Record crest (September 2, 2021)23.75 ft

What floods at each level

From the National Weather Service, highest first.

  • 13 ftThe D and R Canal is flooded by the Millstone River.
  • 11.5 ftRiver Road between Yorktown and Amsterdam is subject to closure. Canal Road near Suydam Road floods.
  • 10 ftCauseways are closed due to flooding.

Highest crests on record

  1. 23.75 ft — September 2, 2021
  2. 23.21 ft — September 17, 1999
  3. 22.9 ft — August 28, 2011
  4. 20.2 ft — April 16, 2007
  5. 19.6 ft — August 28, 1971

Recent crests: 15.8 ft (January 10, 2024) · 12.38 ft (December 28, 2023) · 15.98 ft (December 19, 2023) · 12.76 ft (April 8, 2022) · 23.75 ft (September 2, 2021)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (WETN4); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.