The National Hurricane Center is monitoring three tropical waves in the Atlantic basin. Tropical wave 1: An eastern Atlantic tropical wave is along 23W, south of 14N, moving westward at 6 to 11 mph. Tropical wave 2: A central Atlantic tropical wave is along 43W, south of 13N, moving westward at 6 to 11 mph.

The latest on Tropical Storm Erick and why experts expect it to intensify to a hurricane as it approaches Mexico.

Hurricane Erick formed Wednesday in the Pacific Ocean on a forecast track to bring heavy rain, strong winds, storm surge and possible mudslides to southern coastal Mexico, the U.S. National Hurricane Center said.