Overview
- Mexico's Servicio Meteorológico Nacional and Conagua issued alerts for about 19 states on Friday, June 12, warning that Onda Tropical 6 interacting with a broad low over the Bay of Campeche will produce very heavy to intense rainfall across the southeast, west and parts of the centre.
- The National Hurricane Center rates the short‑term chance of cyclonic formation at roughly 10 percent but says the low's wide circulation will continue to pump moisture into Mexico and keep flood and landslide risk high.
- Forecasts call for extreme local rainfall totals of 75–150 mm in hotspots such as Jalisco, Puebla, Veracruz, Oaxaca, Chiapas and the Yucatán states, with common hazards listed as river rises, urban inundation, landslides, hail and fallen trees; Mexico City authorities activated yellow and orange alerts and deployed hydromechanical units.
- A separate extreme-heat threat persists in northern and northwestern Mexico where temperatures are expected above 45°C in places such as Baja California and Sonora while coastal areas may see strong gusts and elevated seas.
- Officials urge residents to clear drains, avoid crossing flooded roads, secure loose objects and prepare for heat‑related illness, and forecasters say the situation could evolve over the weekend as another tropical wave approaches the Yucatán and the broad low shifts location and intensity.