Tropical Storm Tomas continues to move west across the Caribbean just north of the border between Colombia and Venezuela.
The storm is weaker with maximum sustained winds of 45 mph (75 kph), but the U.S. National Hurricane Center said the system might strengthen in the next two days.
The storm seems to be on course to have an effect on Costa Rica, and the Instituto Meteorológico Nacional said that it was keeping watch.
Those heavydownpours Monday were not from Tomas but from moisture being brought inland from the oceans, the institute said. Similar is expected for today.