Major Winter Storm Ongoing in the Upper Midwest; Severe Weather Tonight from the Mid-South to the Ohio Valley

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through Monday across the Upper Midwest and Upper Great Lakes. 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 through tonight, moving into the Mid-Atlantic Monday. Read More >

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Last Map Update: Mon, Mar 16, 2026 at 2:20:42 am 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

Beach 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 15th 6:00 PM AST] UPDATE | ACTUALIZACIÓN A High Rip Current Risk is now in effect for southern beaches of Puerto Rico through Wednesday afternoon. Hay un Riesgo Alto de Corrientes Marinas en las playas del sur de Puerto Rico hasta el miércoles por la tarde. #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