Chilean authorities issued meteorological alerts for strong wind gusts and heavy rain across central and southern regions this week [1].
The alerts signal a period of high risk for infrastructure and transport as two frontal systems move across the country. These systems are generating sustained precipitation and wind that could disrupt daily activities in several high-population areas.
The Dirección Meteorológica de Chile (DMC) and the Servicio Nacional de Prevención y Respuesta ante Desastres (Senapred) identified the affected areas as the Metropolitan Region of Santiago, O'Higgins, Maule, Ñuble, Biobío, Los Ríos, and La Araucanía [1, 2].
Forecasters expect the most intense weather conditions to occur mid-week, specifically on Tuesday [2, 3]. According to official reports, wind gusts could reach up to 70 km/h [1, 2, 4]. While some reports describe the winds as ranging from normal to moderate, other alerts highlight the potential for these higher gusts [1, 4].
Rainfall totals are also expected to be significant. Forecasts for the affected regions vary slightly between agencies, with predictions ranging from 50 mm [3] to a maximum of 55 mm [4]. These frontal systems are moving in sequence, which contributes to the sustained nature of the precipitation across the southern corridor.
Local authorities have activated early preventive alerts to mitigate the impact of the storm. Residents in the identified regions are advised to remain vigilant as the weather systems cross the territory throughout the week [2, 3].
“Wind gusts could reach up to 70 km/h”
The convergence of two frontal systems increases the likelihood of saturated soils and urban flooding in central Chile. Because the alerts span from the capital in Santiago down to the southern regions, the weather event could impact a significant portion of the country's agricultural and transport infrastructure simultaneously.
