Ernesto intensifies into Category 1 hurricane; half of Puerto Rico without power USA TODAYTropical Storm Ernesto Batters Leeward Islands The Weather ChannelErnesto Becomes a Hurricane, Widespread Power Outages Reported in Puerto Rico MarketWatchHurricane Ernesto tracker: Latest forecast as tropical storm becomes a hurricane north of Puerto Rico Yahoo! VoicesErnesto getting stronger as it plows through Caribbean islands. Here’s where it could go next and how fast it could intensify. CNN