Miami Heat Advisory: Triple-Digit Heat Index Looms

South Florida can expect another intensely hot and humid Sunday, with heat index values projected to reach 100 to 102 degrees in inland Miami-Dade and Broward counties. Coastal areas will experience slightly lower, but still elevated, heat index values. Scattered thunderstorms are anticipated to develop throughout the afternoon and into the evening, bringing a potential for heavy downpours.

These storms are fueled by tropical moisture interacting with daytime heating. The Weather Prediction Center has issued a Level 1 marginal risk for excessive rainfall and flash flooding, with localized street flooding being the primary concern where storms repeatedly impact areas. This active weather pattern is likely to continue for most of the upcoming week, with elevated rain chances through Wednesday.

Looking ahead, Thursday and Friday are expected to be drier before another increase in storm activity is possible next weekend. Residents are advised to stay hydrated, limit outdoor activities during peak heat, and remain aware of rapidly changing weather conditions, especially during commutes.