Major Winter Storm in the North-Central U.S.; Severe Weather from the Mid-South to Ohio Valley

A major winter storm will bring a swath of heavy snowfall, strong winds, blizzard conditions and freezing rain to the Northern Plains into the Great Lakes region. A line of storms will be capable of producing widespread damaging winds, tornadoes, and some large hail from the Mid-south to the Ohio Valley and the Southeast. Critical fire weather concerns shift to the southern Rockies and Plains. Read More >

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Last Map Update: Sun, Mar 15, 2026 at 12:16:55 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

Today | Hoy

Marine & Coastal Hazards

Caribe Wave 2026

Radar

📅 [Mar 15, 2026] 💨🌦️ Un aumento en los vientos y algo de humedad resultarán en condiciones variables durante el día de hoy. Se esperan actividades de aguaceros 🌧️ a través de sectores del este de la isla, donde se espera riesgo de inundaciones menores 🌊 en áreas bajas. Para el resto de la semana, se espera que las condiciones marítimas y costeras se deterioren ⚠️, resultando en alto riesgo de corrientes marinas y oleaje peligroso ⛵🚨 para los operadores de pequeñas embarcaciones. 💨🌦️ An increase in winds and some humidity will result in variable conditions throughout today. Shower activity 🌧️ is expected across eastern portions of the island, where the risk of minor flooding 🌊 is anticipated in low-lying areas. For the remainder of the week, maritime and coastal conditions are expected to deteriorate ⚠️, resulting in a high risk of rip currents and hazardous seas ⛵🚨 for small craft operators. #PRwx #USVIwx

📅 March 15, 2026 🌊💨 El viento resultará en un aumento de oleaje y condiciones costeras peligrosas al menos hasta el martes. ⚠️ Se exhorta a ejercer precaución en las aguas locales y zonas costeras afectadas. 🌊💨 Wind-driven seas will result in building swells and hazardous coastal conditions at least through Tuesday. ⚠️ Please exercise caution across local waters and affected coastal zones. #PRwx #USVIwx

🌊🚨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