Elsa threatened the Windward Islands during the 2021 eruption of La Soufrière on St. Vincent, with interests in the region being asked to monitor for official updates. Flash floods, landslides and lahars were also expected on the island and as a result, persons near these prone areas were ordered to evacuate immediately. of rain was forecasted for the country by July 2, while were expected for the next day. The National Emergency Management Organisation of the area also warned the public to not venture outside as conditions will be dangerous due to Elsa. Businesses, schools and other public utilities were instructed to temporarily close due to the hurricane, except essential workers such as police, health services and others which has to remain alert under their departments. Ferry services between the Saint Vincent Island and the Grenadine Islands were suspended starting July 1, while 94 shelters across the former were prepared for those who need to evacuate due to Elsa. The Argyle International Airport were also closed starting that day while marine advisories were posted on the island until July 4 for small fishcrafts. Martinique was also placed on a yellow alert, in sync with another tropical wave ahead of Elsa.
