Overview
- Polar air tied to the previous front is keeping conditions cold to frigid across northern and central states, with minimums near -5°C to 0°C and dawn frosts in high terrain.
- Mexico City’s risk agency issued an orange alert for Tlalpan and yellow alerts for Álvaro Obregón, Cuajimalpa, Magdalena Contreras, Milpa Alta and Xochimilco for early Friday lows of 1–6°C.
- SMN forecasts a renewed Evento Norte peaking Saturday into Sunday, with gusts up to 70–90 km/h in Tamaulipas, Veracruz and the Isthmus of Tehuantepec, along with elevated seas.
- Authorities advise layered clothing, extra care for vulnerable people, updated vaccinations and safe heater use to prevent carbon monoxide poisoning.
- Parallel Arctic air in the United States is driving a steep cooldown with light snow in parts of the Northeast and Midwest, and Florida counties have opened cold-weather shelters.