Ernesto is rapidly intensifying to near hurricane strength, with heavy rains and flooding possible over much of Hispaniola. Rainfall amounts of 6 to 12 inches...with possible isolated amounts of up to 20 inches...are expected over Haiti and the Dominican Republic. These rains could cause life-threatening flash floods and mud slides. A Tropical Storm Warning and a Hurricane Watch remain in effect for Jamaica. A Hurricane Watch remains in effect for the Cayman Islands. A tropical storm watch may be required for portions of the Florida Keys later today. Public Advisories Updated every three hours. Tropical Storm Discussion Updated every six...