The primary risks from Tropical Storm Bertha include heavy rainfall, flash flooding, and storm surge. The NHC has issued a Storm Surge Watch from the Alabama-Florida border to the mouth of the Mississippi River, warning of potential inundation of 2-4 feet above normally dry ground. Urban and low-lying areas are particularly vulnerable to flash flooding. Additionally, isolated tornadoes and tropical-storm-force winds are expected along portions of the northern Gulf Coast through Wednesday. Residents in the affected areas, including Florida, Alabama, Mississippi, and Louisiana, should remain vigilant as conditions may worsen.