PORTLAND — The annual Wreaths Across America convoy will arrive in Portland this Sunday, carrying wreaths bound for Arlington National Cemetery in Washington, D.C.

The Portland Police Department will escort the convoy to Cheverus High School late Sunday afternoon. There will be a brief ceremony at Cheverus before the convoy continues south.

The police escort was organized by Portland police officer Kevin Haley whose brother, William, is buried at Arlington.

Nicole Clegg, a city spokeswoman, said Morrill Worcester, president of the Worcester Wreath Company, came up with the idea for the wreath convoy in 1992.

The company now delivers more than 20,000 wreaths to Arlington, as well as deliveries to more than 400 local, state and national veterans’ cemeteries.

Clegg said the convoy is expected to arrive at Cheverus High School between 4 and 4:30 p.m. The welcome  ceremony will be held in the high school gymnasium.

The convoy is scheduled to arrive at Arlington National Cemetery on Dec. 10 where it will be greeted by thousands of volunteers, who will help lay the wreaths.

Haley and the swimmers he coaches at Cheverus will help lay wreaths at Arlington.