Werner Stolz, head of forecasts for the IMN, said the phenomenon has been an evolution that started last year and consolidated in the first months of this year.
He said the phenomenon means less rainfall in the Pacific and increased in the Caribbean. The expert added that decreased rainfall will continue for the Central Valley (the greater metropolitan area of San Jose), and the Guanacaste province if the trade winds continue in the Caribbean.
However, the expert said heavy downpours are expected in the Central Valley for the next 15 days.
“The rainy season will have many ups and downs,” he said.
In the province of Limon, this is the third day of flooding, as rivers and creeks overflow their banks due to the rains. At least 120 homes have been so far affected, and a number of rural roads and bridges damaged.
At the Research Center of Marine Sciences and Limnology (CIMAR – Centro de Investigación en Ciencias del Mar y Limnología) , Omar Lizano, warns of a heavy swell for the Caribbean coast, that are expected to continue to at least Friday.