Maryland News Tracking The Tropics & Isaac August 22, 2012 / 1:09 PM EDT / CBS News Isaac Isaac Isaac Isaac Isaac Isaac Tropical Storm Isaac Batters Cuba ADALBERTO ROQUE/AFP/GettyImages Tropical Storm Isaac Batters Cuba ADALBERTO ROQUE/AFP/GettyImages Tropical Storm Isaac Barrels Through Haiti THONY BELIZAIRE/AFP/GettyImages Tampa Bay Prepares For Tropical Storm Isaac Ahead Of The Republican National Convention Photo by Marc Serota/Getty Images Isaac Bears Down On The Florida Keys Photo by Marc Serota/Getty Images Isaac Photo by Tom Pennington/Getty Images Isaac Isaac Isaac Isaac Isaac A projection of Isaac as of Sunday. Isaac The "spaghetti" models for Sunday. Isaac This is Saturday's "spaghetti strings" model options for Isaac's path. Isaac This is the Saturday update for Isaac Isaac Isaac also poses a possible threat to Florida during next week’s Republican National Convention in Tampa. Issac Issac Issac Issac Isaac Isaac Bears Down On Florida Keys Isaac Isaac Isaac's forecast, as of Sunday.