Weather warnings
May
08
Meteorological Warning Update
(Update) Showers and thunderstorms during the afternoon and early morningmeras horas de la noche
May 8, 2025
6:00 pm
Forecast: Rainy conditions have been observed this afternoon on the Pacific coast, much of the Central Valley, and mountainous areas of the Caribbean and the Northern Zone, due to the activity of...
May
08
Weather Warning
Showers and thunderstorms during the afternoon and early evening
May 08, 2025
10.30 a.m.
Discussion: The Intertropical Convergence Zone remains located over Costa Rica, generating significant moisture and instability. This, along with morning warming and the arrival of sea breezes,...
May
07
Aviso Meteorológico Actualización
(Actualización) Lluvias y aguaceros fuertes en el Valle Central y la vertiente del Pacífico
7 de mayo de 2025
6:20 pm
Diagnóstico: La Zona de Convergencia Intertropical sobre el país, en conjunto con factores locales como el calentamiento diurno y el ingreso de humedad desde el Océano Pacífico, favorecerá...
May
07
Weather Warning
Heavy rain and downpours in the Central Valley and the Pacific slope
May 7, 2025
09:35 a.m.
Diagnosis: The Intertropical Convergence Zone (ITCZ), combined with local factors such as daytime warming and the entry of moisture from the Pacific Ocean, will favor variable rainfall throughout...
May
06
Weather Warning (Update)
Heavy showers this afternoon and early evening in the country
May 6, 2025
6:20 p.m.
Diagnosis: The proximity of the Intertropical Convergence Zone, combined with local factors such as daytime warming and the entry of moisture from the Pacific Ocean, has favored heavy downpours...
Weather warnings history
In this section you will find the weather warnings history.
Aviso Meteorológico-IMN-280920-Actividad lluviosa y eléctrica en esta tarde en el Pacífico Central y Sur
Sep
28
Weather Warning
Rainy and electric activity this afternoon in the Central and South Pacific
September 28, 2020
10:40 a.m.
Diagnosis: The gradual increase in temperatures during the morning period, together with the entry of humidity and little cloudiness, will favor the development of cloudiness and the occurrence of downpours and electrical storm over the country towards the afternoon hours.
Forecast: For this afternoon, downpours with a thunderstorm are forecast in all Pacific regions, especially in the Central and South Pacific, the highest amounts are estimated, which are between 15-55mm with possible higher amounts in a timely manner, in addition, very electrical activity is expected. punctual with downpours located to the west and center of the Central Valley with rains of variable intensity for the sectors to the east, in total amounts between 5-40mm are estimated for this region with possible higher amounts on a specific basis also for the North Zone and Caribbean sectors they estimate amounts between 5-25mm in the form of isolated rains during the afternoon.
During the first hours of the night, the rains will continue, especially in coastal areas of the Pacific and Central Valley, amounts between 5-35 mm with possible higher amounts of a specific nature.
Warning: Special attention due to high percentage of soil saturation and risk of landslides in the Central and South Pacific.
Due to the above, the IMN recommends:
Caution in areas vulnerable to flooding due to sewer saturation.
Take shelter 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: www.imn.ac.cr
Daniel Chacon Fernandez
Meteorologist
DMSA-IMN