DALTON (AP) - Rising temperatures and melting snow in mountain areas are causing rivers to rise in northern New England, prompting concerns about flooding.

The National Weather Service has put out a flood warning for the Connecticut River near Dalton, Vt., after an ice jam formed. The warning affects Essex County and Coos County in New Hampshire.

As of 7 a.m. Monday, the river was 17.3 feet. Flood stage is 17 feet. The weather service said the river is expected to continue rising due to snowmelt and expected rainfall, with a crest near 20 feet by Thursday afternoon.

A flood warning also was issued for Barton River in Coventry, Vt.

A flood watch is in effect for much of Maine.

Temperatures were expected to rise into the 60s and 70s across the region.