Overview
- Civil protection officials put targeted cold alerts in place for the overnight period into Tuesday morning, focusing on elevated sectors of the capital.
- Outlet lists differ on borough assignments: RÉCORD cites orange for Álvaro Obregón, Cuajimalpa, Magdalena Contreras, Milpa Alta, Tlalpan and Xochimilco with yellow for Miguel Hidalgo, while La Crónica reports orange for Álvaro Obregón, Magdalena Contreras and Tlalpan with yellow for Cuajimalpa, Milpa Alta, Tláhuac and Xochimilco.
- Alert thresholds set by authorities designate orange for expected lows of 1–3 °C with high frost risk and yellow for 4–6 °C.
- The national weather service forecasts citywide minimums near 7–9 °C with pockets of 0–5 °C at dawn, fog reducing visibility, possible frost on higher ground, daytime highs near 23–25 °C, and a front shifting southeast later in the morning.
- Officials urge three-layer clothing, skin hydration, safe ventilation when heating, special care for children, older adults and people with illnesses or without shelter, and reporting emergencies to 911 or Locatel (55 5658 1111).