The primary risks today include heavy rainfall, frequent lightning, and gusty winds associated with the afternoon thunderstorms. These conditions could lead to localized flooding in low-lying areas and potential power outages due to downed power lines. The high heat index values of 100-105°F (37-40°C) also pose a risk of heat-related illnesses, particularly for those spending extended periods outdoors. Residents in the Palm Beaches and Treasure Coast should remain vigilant as storm activity intensifies later in the week.