Weather warnings



Weather Warning

Accelerated trade winds and displacement of Easterly Wave n.°19

July 13, 2024
10.30 a.m.

Diagnosis: During the first hours of this Saturday, a low concentration of Saharan dust was present over the national territory, and to a greater extent towards the center and north of Central...

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Meteorological Warning

Accelerated trade winds and rains in the country this Friday

July 12, 2024
10:20 am

Diagnosis: Unstable atmospheric conditions persist in southern Central America, due to the position of the Intertropical Convergence Zone and the drag of humidity from the Caribbean by the trade...

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Aviso Meteorológico (Actualización)

Onda tropical #18 saliendo de Costa Rica

11 de julio de 2024
3:00 p.m.

Diagnóstico: La onda tropical #18 ha dejado abundantes e intensas precipitaciones en las últimas horas en el país, pero principalmente en la Zona Norte registrándose acumulados entre 100 mm y los...

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Weather Warning

Tropical wave #18

July 11, 2024
9.45 am

Diagnosis: is over Costa Rica this Thursday, causing unstable conditions in the maritime sector off the coast of Limón, which is causing rain and showers with thunderstorms...

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Aviso Meteorológico

Lluvias y tormenta eléctrica durante la tarde y noche y onda tropical #18 para este jueves

10 de julio de 2024
10.15 a.m.

Discussion: The Intertropical Convergence Zone remains close to the region, which contributes significant moisture content to the environment. This favors cloudiness in the surroundings of the...

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Aviso Meteorológico-IMN-160520-11am



Weather Warning

Heavy rainy activity and thunderstorm today

May 16, 2020
11.00 am

Diagnosis: The high humidity content on the country and surroundings continues this Saturday, favored by the proximity of the Intertropical Convergence Zone. In addition, very warm temperatures are recorded this morning, which are close to 32 ° C in the GAM and higher in coastal areas and plains. The combination of these factors favors the development of cloudiness, promoting strong rainy and electrical activity during the afternoon and early evening.

Forecast: During the afternoon and in the first hours of the night, showers of variable intensity and heavy showers with thunderstorms are anticipated in the Pacific regions, especially in the Central Pacific and North Pacific, with accumulated between 25-75 mm of 3- 6 hours.

For the Central Valley and the North Zone, rains and showers with an electrical storm are expected, amounts between 25-65 mm in periods of 3-6 hours, possible higher amounts locally in these regions. On the other hand, in the mountainous sectors of the Caribbean rain and showers are estimated, amounts between 10-35 mm of 3-6 hours; possible downpours in the mountains, on the coast of Limón low probability of rain is estimated in the aforementioned periods.

Due to the above, the IMN recommends:

• Caution in areas vulnerable to flooding due to sewerage saturation, increased flow in rivers and streams, as well as sectors prone to landslides.
• Prevention on national routes such as: route 1, route 10, route 27, route 21, route 32, route 34, route 141 and route 126.
• Take refuge in a safe place in case of hearing an electrical storm or perceiving strong gusts of wind near storm clouds, as well as precaution for possible falling tree branches, power lines, among others.
• Stay informed via Twitter: @IMNCR, Facebook: CR National Meteorological Institute and the WEB Page:

Gabriela Chinchilla