Overview
- The Mexican weather service (SMN/Conagua), which issued updated forecasts on Tuesday, warned of very strong to intense rains with 75–150 mm likely in Puebla, Veracruz, Oaxaca, Tabasco and Chiapas.
- SMN said a low-pressure area may form south of Oaxaca and Guerrero by Friday and that its possible cyclonic development could reinforce heavy rains across the southern and southeastern coast.
- A separate mid-level anticyclonic circulation will produce an ongoing heat wave in about 13 states, with daytime temperatures above 45°C reported in parts of Sinaloa.
- U.S. agencies including NOAA and private forecasters at FOX Weather advised coastal vigilance along the Southeast Atlantic for a south-cold-front interaction that could favor low-pressure formation, heavy rain and strong winds.
- Regional services issued local alerts: Argentina's SMN raised yellow warnings in parts of Patagonia, Peru's Senamhi expects warmer-than-normal drizzle in Lima, and AEMET forecasts light morning rain in Galicia; authorities urge avoiding flooded areas and following official updates.