Isaac Kills 4 in Haiti

Tropical Storm Isaac pushed over Cuba today after sweeping across Haiti's southern peninsula, where it caused flooding and at least four deaths, adding to the misery of a poor nation still trying to recover from the terrible 2010 earthquake. Isaac's center made landfall just before midday near the far-eastern tip of Cuba, downing trees and power lines. In the picturesque city of Baracoa, the storm surge flooded the seaside Malecon and a block inland, destroying two homes.

Forecasters said Isaac poses a threat to Florida Monday and Tuesday, just as the Republican Party gathers for its national convention in Tampa. It could eventually hit the Florida Panhandle as a Category 2 hurricane with winds of nearly 100 mph. Florida Gov. Rick Scott declared a state of emergency, officials urged vacationers to leave the Florida Keys, and the US National Hurricane Center said a hurricane warning was in effect there, as well as for the west coast of Florida from Bonita Beach south to Ocean Reef and for Florida Bay.