WEST PALM BEACH, FL — The event is free, but downtown West Palm Beach will not be moving freely. The City of West Palm Beach is preparing to host its annual 4th on Flagler celebration on Saturday, July 4, 2026, from 5 to 10 p.m. on the West Palm Beach Waterfront, marking America's 250th anniversary with a new laser show synchronized to the traditional fireworks display, according to the city. The free outdoor event is centered at 100 N. Clematis…