Weather warnings
Jun
01
Weather Warning (Update)
Tropical Wave #4
Jun 01, 2025
5:50 p.m.
Forecast: Tropical Wave 4 is over Costa Rica this Sunday. In addition to the transit of this disturbance, we remain within the Intertropical Convergence Zone over our latitude, providing high...
Jun
01
Weather Warning (Update)
Tropical Wave #4
Jun 01, 2025
11.10 am
Diagnosis: is located over Costa Rica this Sunday. In addition to the transit of this disturbance, we remain within the Intertropical Convergence Zone over our latitude,...
May
31
Aviso Meteorológico (Actualización)
Lluvias variables en el país este sábado y onda tropical #4 mañana domingo
31 de mayo de 2025
5 pm
Diagnóstico: Este fin de semana la Zona de Convergencia Intertropical se muestra activa nuevamente frente al Pacífico costarricense; lo cual ha ocasionado aguaceros en el Pacífico Sur y eventos...
May
31
Weather Warning
Variable rains in the country this Saturday and tropical wave #4 tomorrow Sunday
May 24, 2025
11.40 am
Forecast: This weekend, the Intertropical Convergence Zone (ITC) is active again off the Costa Rican Pacific, causing downpours in the South Pacific and intermittent rain events in the Central...
May
30
Weather Warning
Variable morning rains this Friday in the Caribbean regions
May 30, 2025
7:30 a.m.
Diagnosis: High humidity levels in southern Central America, combined with instability in the upper troposphere in the region, have favored variable rainfall in the Caribbean and parts of the...
Weather warnings history
In this section you will find the weather warnings history.
Aviso Meteorológico-IMN-060720-0700pm
Jul
06
Weather Warning
Heavy downpours during the early evening hours in the Central Pacific
July 06, 2020
07.00 p.m.
Discussion: Local factors such as daytime temperatures, as well as the entrance of humidity from the Pacific, generated during this afternoon intense rainy activity in sectors of the Pacific, especially towards the central and southern parts, with accumulations exceeding 100 mm towards Ladies, Parrita and surroundings.
Forecast: Moderate to heavy downpours will continue in the first hours of the night in the coastal part of the Central Pacific, amounts between 30-60 mm are estimated, with a tendency to gradually decrease in the second part of the night period. In the rest of the country, significant rainfall is not expected.
Warning: special attention in coastal sectors of the Central Pacific due to heavy rains in the last hour can cause flash floods.
Due to the above, the IMN recommends:
- Caution in areas vulnerable to flooding due to sewer saturation and increased flow in rivers and streams.
- Take refuge in a safe place in case of listening to a thunderstorm or perceiving strong gusts of wind near storm clouds, as well as caution for possible falling tree branches, power lines, among others.
- Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the Website: www.imn.ac.cr
Rebeca Morera R
Meteorologist
DMSA-IMN
