Connecticut River at Holyoke, MA

River level and flood forecast · Hampden County

Normal5.1 ftas of Mon 11:30 PM

The river is 21.4 ft below flood stage (26.5 ft).

Flow: 4,510 cubic feet per second (USGS).

Normal for October 13.

Usual for October 13: 3,830 to 10,600 cubic feet per second (the middle half of 24 years).

The last 7 days and the forecast

010203040WedThuFriSatSunMonTueAction 25.5 ftFlood 26.5 ftModerate 29.5 ftMajor 32.5 ftNowObserved (ft)NWS forecast

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

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Flood stages

Major flood stage32.5 ft
Moderate flood stage29.5 ft
Flood stage26.5 ft
Action stage25.5 ft
Record crest (August 30, 2011)27.73 ft

What floods at each level

From the National Weather Service, highest first.

  • 32.5 ftThis is a serious flood episode. Follow the direction of your local emergency management officals. If asked to evacuate, do so immediately. All flood protection measures must be rushed to completion in flood prone areas. Flooding is likely from below the Holyoke Dam through Chicopee and West Springfield.
  • 29 ftFlooding will continue to spead across low lying areas from Holyoke south through Agawam. Inundation of areas which are outside of local levee protection is likely.
  • 28 ftFlooding will affect low lying areas along the river which fall outside of levees and flood protection walls.
  • 26.5 ftLowland flooding is expected along the Connecticut River below the Holyoke Dam south to Agawam and Longmeadow.

Highest crests on record

  1. 27.73 ft — August 30, 2011
  2. 26.39 ft — October 10, 2005
  3. 25.27 ft — April 17, 2007
  4. 25.2 ft — April 2, 2004
  5. 25.04 ft — April 4, 2005

Recent crests: 27.73 ft (August 30, 2011) · 22.06 ft (December 13, 2008) · 25.27 ft (April 17, 2007) · 26.39 ft (October 10, 2005) · 25.04 ft (April 4, 2005)

Highest flow on record

107,000 cubic feet per second — August 30, 2011. From the USGS's yearly peaks since 2003.

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (HLYM3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.