Overview
- Mexico’s national weather service (SMN/CONAGUA) warned Saturday that tropical wave 17, an incoming wave 18 and linked cyclonic circulations will produce widespread storms and heavy rainfall across much of the country.
- The SMN forecasts the heaviest downpours—75 to 150 millimeters, with isolated higher totals—in Veracruz, Oaxaca and Chiapas, raising risks of flash floods, river rises and landslides.
- A persistent heat wave continues in the north and northwest with daytime highs above 45°C recorded in parts of Baja California and 40–45°C expected in Sonora, Sinaloa and Chihuahua, increasing heat‑related illness risk.
- Authorities warned that storms will often include frequent lightning, possible hail, strong gusts of 50–70 km/h and elevated coastal seas of up to about 2.5 meters, and they urged people to avoid flooded roads and secure property.
- Meteorologists are monitoring a low‑pressure area south of Oaxaca for cyclonic development and say its intensification could shift rainfall patterns and raise marine and coastal hazards in the coming days.