Ice jams lead to Pemigewasset flood warning
The warning is the result of an ice jam on the Pemigewasset River. A flood warning is issued when conditions mean flooding should be considered imminent.
On Sunday morning, the Pemigewasset River reached a height of 15.2 feet, which is 13 feet above flood stage.
Ice jams are difficult to forecast, the Weather Service said, because they could break up at any time and create another flooding situation further downstream.
Police in Plymouth report no flooding problems. However, the flood warning means residents are cautioned to move to higher ground if threatened by flood waters and to not drive vehicles into areas covered by water, since the underlying roadway may have been washed away.
The flood warning for the Pemigewasset near Plymouth is in effect until this evening.
An earlier flood warning for the Pemigewasset near Woodstock was canceled Sunday morning.