In a New Hampshire tradition, "ice-out" has been declared on Lake Winnipesaukee.
Emerson Aviation made the call at 5:40 p.m. Thursday during a flight.
An "ice-out" is when the M/S Mount Washington tourist boat can safely travel between its ports on the state's largest lake without encountering ice.
Last year, "ice-out'' occurred on April 17 and it happened on March 18 in 2016, the earliest recorded "ice-out'' for the lake, and the first one declared in the winter season.
"Ice-out" generally occurs the third week of April.
The latest "ice-out" was in May 1888.