Tropical Storm Ernesto nears hurricane strength as it skirts Puerto Rico, bringing concerns of floods and power outages CNNTropical Storm Ernesto tracker: Latest forecast as tropical storm heads toward Virgin Islands, Puerto Rico this evening Yahoo! VoicesErnesto Expected To Become A Hurricane The Weather ChannelTropical Storm Ernesto: Puerto Rico prepares for flooding rain, strong wind WFTV OrlandoTropical Storm Ernesto a little stronger as it impacts Leeward Islands, Puerto Rico FOX 13 Tampa