Costa Rica's National Meteorological Institute forecast lots of rainfall because of the outer bands of Eta, mostly along the Pacific coastline. With flooding starting at the night of November 2, the National Emergency Commission (NCE) put up multiple shelters for people leaving. The agency planned to set up three types of shelters due to the COVID-19 pandemic: infected people, people who might be infected, and non-infected persons. Landslides were expected in many areas due to wet soils.