ARAM BOGHOSIAN FOR THE BOSTON GLOBE

Wave conditions up and down the East Coast are expected to intensify this week.

ARAM BOGHOSIAN FOR THE BOSTON GLOBE

Surfers flocked to Hampton Beach in New Hampshire to take advantage of larger-than-normal swells.

ARAM BOGHOSIAN FOR THE BOSTON GLOBE

Katrina Fiege, 22, of Canada, headed to the water. She called her boss and said, “I’m going surfing.”

ARAM BOGHOSIAN FOR THE BOSTON GLOBE

“We’re amateur meteorologists,” said Rick Evans, 59, who has been riding waves in New Hampshire for about 30 years.

ARAM BOGHOSIAN FOR THE BOSTON GLOBE

The National Weather Service predicted 4- to 7-foot waves for Tuesday.

ARAM BOGHOSIAN FOR THE BOSTON GLOBE

Rick Evans bumped fists with Jack Cadagan.