Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

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Last Map Update: Tue, Mar 17, 2026 at 2:10:55 pm AST

Watches, Warnings & Advisories

National Weather Service Miami - South Florida

National Weather Service Southern Region Headquarters

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Small Craft Advisory

Rip Current Statement

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Beach Hazards

Marine Hazards

Caribe Wave 2026

Radar

Breezy Winds and Hazardous Marine & Coastal Conditions | Brisa Fuerte y Condiciones Marítimas y Costeras Peligrosas

[March 17th] High Rip Current Risk in effect for all east, north and southern beaches of Puerto Rico and the U.S. Virgin Islands through Wednesday afternoon. Hay un Riesgo Alto de Corrientes Marinas para las playas del este, norte y sur de Puerto Rico y las Islas Virgenes Americanas hasta el miércoles en la tarde. #prwx #usviwx

Hazardous Marine Conditions Remain! Hazardous seas - small craft at risk. Stay in port if inexperienced. Check marine conditions before heading out on the water. | ¡Las condiciones marítimas continúan peligrosas! Oleaje peligroso - riesgo para embarcaciones pequeñas. Permanezca en puerto si es inexperto. Verifique las condiciones marítimas antes de salir al agua.

🌊🚨NWS San Juan invites you to participate in the upcoming Caribe Wave 2026: Tsunami Exercise. 📆This DRILL is scheduled for Thursday, March 19th, 2026, at 11 AM AST. 🔗Register at: tsunamizone.org/register | 🌊🚨El SNM en San Juan le invita a participar en el próximo Caribe Wave 2026: Ejercicio de Tsunami. 📆Este SIMULACRO se llevará a cabo el jueves, 19 de marzo de 2026, a las 11 AM AST. 🔗Regístrese en: tsunamizone.org/register #PRwx #USVIwx #CaribeWave #CaribeWave2026 #Tsunamis #TsunamiPreparedness