Weather warnings
May
17
Weather Warning
Scattered heavy downpours with thunderstorms this Saturday
May 17, 2025
10:20 a.m.
Forecast: The passage of Tropical Wave 2, along with local factors such as humid breezes from both sides and warm temperatures, will favor scattered showers and thunderstorms this Saturday...
May
16
Aviso Meteorológico (Actualización)
Lluvias durante el final de la tarde del viernes
16 de mayo de 2025
4.30 p.m.
Diagnóstico: Persiste la inestabilidad atmosférica sobre el país debido a la cercanía de sistemas de baja presión asociados a la Zona de Convergencia Intertropical y factores locales típicos de...
May
16
Aviso Meteorológico
Actividad lluviosa variable esta tarde de viernes
16 de mayo de 2025
11:00 am
Diagnóstico: Persiste la inestabilidad atmosférica sobre el país debido a la cercanía de sistemas de baja presión asociados a la Zona de Convergencia Intertropical. A esto se suman factores...
May
15
Aviso Meteorológico (Actualización)
Aviso Meteorológico-IMN-150525-Condiciones lluviosas en esta tarde y noche (actualización)
15 de mayo de 2025
6:00 pm
Diagnóstico: La Zona de Convergencia Intertropical se encuentra próxima a Costa Rica y, junto con condiciones de inestabilidad en niveles altos de la atmósfera y factores locales, ha generado un...
May
15
Weather Warning
Rainy conditions this afternoon and evening
May 15, 2025
10.45 a.m.
Discussion: The Intertropical Convergence Zone near Costa Rica and instability in the upper atmosphere, along with morning warming, are contributing factors to the presence of cloudiness and...
Weather warnings history
In this section you will find the weather warnings history.
Aviso Meteorológico -IMN-220722-530pm
Jul
22
Weather Warning Update
The Intertropical Convergence Zone over Costa Rica is maintained
July 22, 2022
5.30 pm
Diagnosis: This Friday the Intertropical Convergence Zone remains over Costa Rica, favoring mostly cloudy skies, a humid environment and unstable atmospheric conditions this afternoon in the north of the country. So far, we have the most intense downpours with storm and strong wind events taking place in the mountains of the Caribbean, North Zone and Guanacaste. The highest amounts of rainfall by region are as follows: North Zone 65 mm in La Rebusca, North Pacific 47 mm in Santa Cruz, Central Valley 39 mm in La Garita, Caribbean 55 mm in Juan Viñas, Central and South Pacific 34 mm in Coto Brus.
Forecast: During the first hours of the night there will be moderate to strong rains accompanied by an electrical storm along the North Pacific Slope and in the North Zone, as well as in the border area of ??the South Pacific, amounts of rain between 30 mm and 80 mm in periods of 6 hours. In the Central Valley, mountains of the Caribbean and Central Pacific, the sky is estimated to be partially cloudy with occasional rains, accumulated rainfall between 15 mm and 30 mm with maximums of 60 mm.
Warning: Special attention in the Pacific because they are the vulnerable regions after the recent heavy rains.
Due to the above, the IMN recommends: • Caution due to sewage saturation and possible sudden flooding. • Prevention before an electrical storm and seek shelter in a safe place in the event of strong gusts of wind appearing or being perceived near storm clouds, due to the possible fall of tree branches, power lines, among others. • Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute CR and the WEB Page: www.imn.ac.cr
Gabriela Chinchilla R. Meteorologist DMSA-IMN
