The primary risks from Tropical Storm Bertha include heavy rainfall, storm surges, and flash flooding. Rainfall totals of 2 to 4 inches (50 to 100 mm) are expected along the Gulf Coast through Thursday, with isolated areas receiving up to 6 inches (150 mm). A storm surge of up to 4 feet (1.2 meters) is possible in coastal areas of Louisiana, Mississippi, and the Alabama-Florida border. Swells generated by the storm could result in life-threatening surf and rip currents. These conditions pose significant risks to coastal communities, particularly those that have recently experienced heavy rainfall.