Severe thunderstorms knocked out power to thousands of customers in York County today.

A cold front arrived from the northwest and hit moist, unstable air over southern Maine and southern and central New Hampshire just before 2 p.m., spawning intense storms with high winds.

“There were trees and wires down all over the place,” said James Brown, of the National Weather Service in Gray. There were reports of downed trees in Kittery, Eliot, Saco and Biddeford as well as golf-ball sized hail in Dover, N.H.

The storms packed winds of up to 60 to 70 mph and last until about 7 p.m.

Central Maine Power Co. reported almost 4,700 customers had lost power, mostly in York County.