The primary impact of Tropical Storm Bertha includes heavy rainfall, strong winds, and the risk of localized flooding along the Gulf Coast, particularly near the Texas-Louisiana border. Coastal areas, including New Orleans, have experienced increased wave activity, which may pose risks to residents and infrastructure. The storm's slow movement has heightened concerns about prolonged exposure to adverse weather conditions, especially in low-lying areas prone to flooding. Residents in the affected regions are advised to remain vigilant and monitor updates from local authorities.