Overview
- The Servicio Meteorológico Nacional issued a 48-hour forecast on Saturday, Oct. 17 warning that Frente Frío Núm. 2, Hurricane Trudy and the remnants of Simon will interact and produce torrential rains, intense winds and very high coastal seas.
- SMN hazard guidance lists rainfall up to 150–250 mm in some coastal zones, 'Norte' wind gusts of 110–120 km/h on Gulf coasts and waves of 5–7 meters off Veracruz, with risks of flash floods, river rises, landslides and storm surge.
- The most severe Mexican impacts are expected over the weekend in Jalisco, Colima, Michoacán, Veracruz, Tabasco, Oaxaca and Chiapas, while Baja California, Sonora and interior regions face gusty winds and localized showers.
- In Argentina, national and provincial services issued yellow alerts for Oct. 17 across Córdoba, Mendoza, Tucumán and Patagonian cordillera sectors, driven by a blocking pattern that meteorologists say is beginning to break with many forecasts projecting partial improvement from Sunday.
- Local authorities have issued routine safety advice—avoid flooded or coastal areas, secure loose objects and heed Protección Civil—and forecasters note El Niño raises seasonal rainfall risk and could amplify river and slope hazards in the coming days.