Flooding Threat Along the Gulf Coast, Southern Rockies and High Plains; Cooler Weather in the Central and Eastern U.S.

Strong thunderstorms may bring excessive rainfall and flooding over parts of the northern Gulf Coast today and over parts of the southern Rockies into the High Plains today through the weekend. A refreshingly cool and dry air mass will continue to produce below average temperatures across the central and eastern U.S. through the weekend. Read More >

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Last Map Update: Sun, Aug 31, 2025 at 9:16:56 am AST

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National Weather Service Miami - South Florida

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Heat Risk to start the week 🥵 with isolated strong afternoon thunderstorms. Riesgo de Calor para comenzar la semana 🥵con tronadas aisladas fuertes en las tarde.

📅 Sun, Aug 31, 2025 · Today’s forecast calls for excessive to extreme heat through this afternoon, followed by strong afternoon thunderstorms. Localized flooding, dangerous lightning, and gusty winds are expected. Stay cool, stay safe, and avoid flooded roads. | 📅 domingo, 31 de agosto de 2025 · El pronóstico para hoy anticipa calor excesivo a extremo hasta la tarde, seguido por fuertes tronadas en la tarde. Se esperan inundaciones localizadas, rayos peligrosos y ráfagas fuertes. Manténgase fresco, seguro y evite carreteras inundadas.

[Aug 31st] An elevated to significant heat risk is expected today and during the next few days. For Today, an Extreme Heat Warning will be in effect from 10 AM to 5 PM for coastal and urban areas of Puerto Rico, as well as the valleys of the eastern interior, Vieques, Culebra. St. Thomas, St. John & St. Croix. This diurnal heating, along with a tropical wave moving south of our area, will help promote strong PM showers and t-storms. | [31 de agosto] Se espera un riesgo de calor de elevado a significativo hoy y durante los próximos días. Hoy, un Aviso de Calor Extremo estará vigente de 10 AM a 5 PM para las zonas costeras y urbanas de Puerto Rico, así como para los valles del este interior, Vieques, Culebra, St. Thomas, St. John y St. Croix. Este calentamiento diurno, junto con una onda tropical que se desplaza al sur de nuestra área, contribuirá a la formación de fuertes aguaceros y tronadas en las horas PM. #PRwx #USVIwx

🌀Based on climatology, in September (peak of the hurricane season), tropical cyclone formation favors the tropical Atlantic westward across the Caribbean and Gulf, and northwestward into the western and central Atlantic. 🌀Basado en climatología, en septiembre (el pico de la temporada de huracanes), la formación de ciclones tropicales favorece el Atlántico tropical hacia el oeste a través del Caribe y el Golfo, y hacia el noroeste hacia el oeste y centro del Atlántico. #PRwx #USVIwx

[Aug 31st] The risk of rip currents is low. However, life-threatening rip currents often occur in the vicinity of jetties and piers. | [31 de ago] El riesgo de corrientes marinas es bajo. Sin embargo, corrientes marinas amenazantes a la vida ocurren a menudo en las cercanías de malecones y muelles. #PRwx #USVIwx