Florida Governor Rick Scott on Saturday declared a state of emergency as subtropical storm Alberto moves north toward the U.S. Gulf Coast, threatening to bring heavy rainfall and flooding by Monday, according to officials.All 67 Florida counties were issued the notice to give state and local governments enough time and resources to prepare, Scott said in a statement.“As we continue to monitor Subtropical Storm Alberto’s northward path toward Florida, it is critically important that all Florida counties have every available resource to keep families safe and prepare for the torrential rain and severe flooding this storm will bring,” Scott said.The storm is expected to approach the U.S.