when light travels from air to glass or water waves travel from deep to shallow water. FAST is a useful way of remembering the speed and direction changes of waves during refraction: If waves get ...

Surfers from Brazil, France and Portugal have arrived at Mavericks, a famous wave south of San Francisco, to ride the giant walls of water. Waves up to 70ft (21 meters) have been ridden ...

Forecasters predicted 20- to 30-foot waves and cautioned swimmers and boaters to stay out of the water and avoid potentially dangerous conditions. Farther north, the weather service office in ...