# Coastal flooding in Monte Hermoso, Argentina > Live situation record from CLSTR: https://clstr.news/situations/coastal-flooding-in-monte-hermoso-argentina > Updated: 2026-09-23T15:01:24.000Z. Sources: 17. Developments: 2. Strong winds and high tides caused significant coastal flooding in Monte Hermoso and Pehuen Co, Argentina. An orange alert from the National Meteorological Service led to the suspension of various activities as the sea advanced up to 50 meters inland, damaging beach infrastructure such as lifeguard stations and wooden walkways. Following the storm, a massive cleanup effort was organized involving over 200 volunteers who removed thousands of kilograms of inorganic waste and heavy debris from 15 kilometers of coastline. This event represents the second major storm surge in less than six months. In response to the recurring damage, the municipal government is conducting technical studies alongside institutions such as the Universidad Nacional del Sur, Conicet, and the Instituto Argentino de Oceanografía. These studies aim to develop long-term coastal defense and protection strategies for the city’s 32 kilometers of coastline, specifically targeting the vulnerable central urban sector. ## Timeline ### 2026-09-23: Monte Hermoso conducts massive beach cleanup after severe storm surges Volunteers and municipal teams are cleaning 15km of coastline in Monte Hermoso, Argentina, following severe storm surges, while technical studies begin to address long-term coastal defense. 9 sources. https://clstr.news/cluster/monte-hermoso-conducts-massive-beach-cleanup-after-severe-storm-surges ### 2026-09-21: Monte Hermoso and Pehuen Co hit by coastal flooding and storms Severe weather and high tides caused coastal flooding and infrastructure damage in Monte Hermoso and Pehuen Co, Argentina, prompting local activity suspensions and emergency assessments. 8 sources. https://clstr.news/cluster/monte-hermoso-faces-coastal-flooding-and-activity-suspensions --- Cite as: Coastal flooding in Monte Hermoso, Argentina. CLSTR, https://clstr.news/situations/coastal-flooding-in-monte-hermoso-argentina