Dangerous Surf and Rip Currents for most of the Atlantic Shoreline; Record Heat for the West

Hurricane Erin continues to track northward. Tropical storm force winds, storm surge conditions will increase for the Outer Banks today and portions of coastal Virginia. Life-threatening surf and rip currents along much of the east coast of the U.S. this week. Major to extreme HeatRisk with new record high temperatures are expected for many areas of the western U.S. this week. Read More >

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Last Map Update: Wed, Aug 20, 2025 at 4:10:57 pm AST

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Another day with high temperatures across the region. For today, a Extreme Heat Warning has been issued for the lower elevations and urban areas of Puerto Rico. Also, a Heat Advisory has been issued for Culebra, Vieques and the USVI today.

Otro día con altas temperaturas e índices de calor elevados en toda la región hoy. Por lo tanto, se ha emitido un Aviso de Calor Extremo para las areas urbanas y costeras de Puerto Rico y una Advertencia de Calor para Culebra, Vieques y las USVI hoy.

[Aug 20th] 2 PM Tropical Weather Outlook 🌀 The NHC is monitoring two tropical waves, one of them is located several hundred miles east of the Leeward Islands. This tropical wave continues to produce a broad area of disorganized showers and thunderstorms. Environmental conditions appear conducive for gradual development of this system, and a tropical depression could form by this weekend while it moves near or to the north of the northern Leeward Islands. 🟡Formation chance through 48 hours...low...10%. 🟠Formation chance through 7 days...medium...60%. | [20 de agosto] Perspectiva sobre las Condiciones del Tiempo en el Trópico de las 2 PM 🌀 El CNH continúa monitoreando dos ondas tropicales, una de ellas está ubicada a varios cientos de millas al este de las Islas de Sotavento. Esta onda tropical continúa produciendo una amplia área de aguaceros y tormentas eléctricas desorganizadas. Las condiciones ambientales parecen propicias para el desarrollo gradual de este sistema, y una depresión tropical podría formarse para este fin de semana mientras se mueve cerca o al norte de las Islas de Sotavento del norte. 🟡Probabilidad de formación hasta 48 horas...baja...10%. 🟠Probabilidad de formación hasta 7 días...media…60%. #PRwx #USVIwx hurricanes.gov weather.gov/sju