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Aviso Meteorológico-IMN-220920-Condiciones lluviosas en el Pacífico durante la tarde y noche



Weather Warning

Rainy conditions in the Pacific during the afternoon and night

September 22, 2020
10:35 a.m.

Diagnosis: The Intertropical Convergence Zone, as well as the entry of humidity from maritime sectors and the morning warming will favor rainy conditions and electrical activity in the country.

Forecast: During the afternoon the most relevant activity is expected in the Pacific sectors where downpours with an electrical storm are anticipated, estimating amounts between 20-70mm, in addition to the Central Valley the activity will be present as rains of variable intensity and the possibility of a localized electrical storm especially to the west and center of the region, estimating amounts between 5-45mm with possible higher amounts of a specific nature, also for the North Zone a pattern of isolated moderate rains with a specific storm is projected, projecting amounts between 10-40mm with possible higher amounts of a punctual nature, on the other hand in the Caribbean rains a profile of rains lagging behind the mountainous and neighboring sectors is expected, estimating amounts between 5-30mm.

Rainfall is expected to remain in the early hours of the night in sectors of the Pacific with amounts of 10-30mm and mountainous areas of the Central Valley estimating amounts between 5-15mm

Warning: Special attention in all Pacific regions, particularly the possibility of landslides in the mountainous sectors of the Central Valley and the South Pacific.

Due to the above, the IMN recommends:


  •     Caution in areas vulnerable to flooding due to sewer saturation.
  •     Take refuge in a safe place in case of hearing an electrical storm or perceive strong gusts of wind near the storm clouds, as well as caution against possible falling tree branches, power lines, among others.
  •     Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB Page:

Daniel Chacon Fernandez