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...

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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,...

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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...

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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...

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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...

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Aviso Meteorólogico IMN 210520

May

21

Weather Warning

Rainy conditions will be present during the afternoon and evening

May 21, 2020
0900 am

Diagnosis: the proximity of the Intertropical Convergence Zone, the weakness of the trade winds are factors that favor evening rains.

Forecast: during the afternoon and night there will be intermittent rains and showers with possible isolated thunderstorms on the Pacific and Central Valley slopes, as well as in the mountainous sectors of the Caribbean and the Northern Zone. The amounts of rain estimated in the Pacific will be between 15-70 mm in 12-hour periods, in the Caribbean and the North Zone the amounts will be between 10-60 mm and in the Central Valley amounts between 5-35 mm are expected in periods of 3 hours.

The coastal Caribbean and surrounding areas will have very little rainfall in most of the region. It is estimated that rainfall can extend until the early hours of the night in the Pacific and mountainous areas of the country.


Due to the above, the IMN recommends:


    Caution in areas vulnerable to flooding due to sewerage saturation, increased flow in rivers and streams, and in areas 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 the storm clouds, as well as precaution for possible fall of tree branches, power lines, among others.

    Stay informed via Twitter: @IMNCR, Facebook: CR National Meteorological Institute and the WEB Page: www.imn.ac.cr


Daniel Poleo

Meteorologist

DMSA-IMN

 


By Daniel Poleo 5/21/20 5/21/20 5/21/20