The extreme heat poses significant health risks, particularly for outdoor workers, the elderly, and those without access to air conditioning. Heat index values as high as 115°F (46°C) are expected, increasing the risk of heat-related illnesses. Additionally, the storm surge from Bertha could reach up to 0.9 meters along the Gulf Coast, potentially causing localized flooding. However, meteorologists emphasize that the heat is the primary concern, with conditions described as 'like being in a breezy oven.'