The General Directorate of Meteorology is maintaining vigilance over a strong swell affecting a significant portion of Madagascar's coastline. Waves of 3 to 3.5 meters, potentially reaching four meters in places, are forecast. Maritime activities could be severely disrupted. Caution is advised on the coasts. In an alert bulletin issued yesterday, September 9 at 12:01 p.m., Météo Madagascar warns of worsening sea conditions due to a swell coming from the southeast. The phenomenon affects the coastline between Beheloka, in Toliara II district, and Taolagnaro, as well as the entire eastern coast of Madagascar. Forecasters estimate wave heights between 3 and 3.5 meters. However, they could occasionally reach four meters, particularly on southern coasts and around Cape Ambre (Bobaomby), at the country's far north. Under surveillance. According to forecasts, the strong swell should reach the zone between Beheloka and Taolagnaro from Wednesday. It should then persist and extend until September 11 on the coastline from Taolagnaro to Cape Ambre. The affected coasts are placed on red alert on the map published by the country's meteorological service. The latter warns particularly against maritime circulation difficulties and risks of accidents or shipwrecks. Daily activities of coastal populations, especially those dependent on the sea, could also be disrupted. Residents and users of affected areas are urged to regularly follow instructions communicated by local authorities.