Weather warnings
Jun
24
Weather Warning -Update-
Tropical wave #8 over Costa Rica
June 24th, 2025
04:50 p.m.
Diagnosis: The instability of Tropical Wave 8 has manifested itself with scattered heavy rains and downpours in various locations in the central and Pacific regions of the country. Rainfall with...
Jun
24
Weather Warning
Tropical wave #8 over Costa Rica
June 24th, 2025
10:15 a.m.
Diagnosis: The axis of Tropical Wave #8 entered the country in the early hours of Tuesday. This system has caused cloud incursions toward the northern Caribbean border regions with Nicaragua....
Jun
23
Aviso Meteorológico
Condiciones lluviosas fuertes este lunes en el país y tren de ondas para la semana
23 de junio de 2025
09.45 a.m.
Diagnóstico: Luego del paso de la onda tropical #7 por nuestro país este domingo, la Zona de Convergencia Intertropical se encuentra robusta y bien organizada sobre el sur de Centroamérica. Esta...
Jun
23
Aviso Meteorológico
Onda tropical #7 sale de Costa Rica-Actualización
22 de junio de 2025
11:40 p.m.
Diagnóstico: El paso de la onda tropical #7 junto con la Zona de Convergencia Intertropical el cual se mantiene cercana al país, generan humedad e inestabilidad al territorio nacional, durante...
Jun
22
Weather Warning (Update)
Tropical Wave 7 Exits Costa Rica
June 22, 2025
06.40 p.m.
Discussion: The tropical wave is gradually exiting Costa Rica and entering the Pacific Ocean. The instability it leaves in its wake is maintaining cloudy conditions across most of the country at...
Weather warnings history
In this section you will find the weather warnings history.
Aviso Meteorológico-IMN-210920-1030am
Sep
21
Weather Warning
Aguaceros y tormenta eléctrica en el Pacífico Central y Sur
September 21, 2020
10.30 a.m.
Discussion: Local factors such as warm morning temperatures and the entry of sea breezes will favor the development of cloudiness towards the afternoon hours and in turn isolated but strong downpours accompanied by an electrical storm.
Forecast: This afternoon there will be isolated but strong rains and downpours accompanied by a thunderstorm in the regions of the Central and South Pacific, amounts between 30-60 mm are estimated, possibly higher accumulated in a localized way. On the other hand, in the North Pacific, Central Valley (center and west), as well as the North Zone and the Caribbean mountains, rainfall and storms of moderate intensity are estimated, accumulated between 20-40 mm.
Rainfall will last during the first hours of the night in regions of the Pacific and Northern Zone, amounts between 10-30 mm.
Warning: Soil saturation in the North Zone and mountainous sectors of the Central and South Pacific, special attention is recommended.
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
Rebeca Morera R
Meteorologist
DMSA-IMN
