Overview
- Veracruz enacted a Gray Alert in its Action phase through December 31 for Cold Front 25, warning of heavy rain, severe Norte winds up to 110 km/h, 4–6 meter seas and a sharp temperature drop, with possible snow on Pico de Orizaba and Cofre de Perote.
- Mexico City issued a Yellow Alert for strong winds in nine boroughs on December 29 and for low temperatures of 4–6°C in six boroughs early December 30, with officials flagging continued cold mornings into New Year’s Day.
- Mexico’s national forecast links the front’s Arctic air mass with a moisture‑rich atmospheric river and upper‑level trough, raising risks of flooding, landslides and coastal hazards from the Gulf to the southeast.
- In Argentina, at least 413 people were evacuated in Corrientes after up to 300 mm of rain overwhelmed drainage, with shelters opened in schools and gyms and a multi‑agency response involving Gendarmería, Prefectura, Civil Defense, firefighters and police.
- Argentina’s weather service posted Yellow Alerts for December 30 covering high temperatures in central provinces, storms across the north and powerful westerly winds in the south, while local observatories warn of early‑January heat spikes near 40°C in parts of Catamarca.