Tropical Storm Ernesto batters northeast Caribbean and aims at Puerto Rico as it strengthens  The Associated PressTropical Storm Ernesto tracker: Latest forecast as tropical storm heads toward Virgin Islands, Puerto Rico this evening  Yahoo! VoicesTropical Storm Ernesto could cause serious damage  FOX 10 News PhoenixErnesto Expected To Become A Hurricane  The Weather ChannelErnesto getting stronger as it plows through Caribbean islands. Here’s where it could go next and how fast it could intensify.  CNN