Weather warnings
Weather Warning-IMN-210524-04:50 p.m.
May
21
Weather Warning (Update)
Rainy activity this Tuesday in the country
May 21, 2024
4:50 p.m.
Diagnosis: The passage of Tropical Wave #3 and the instability of the Intertropical Convergence Zone has presented downpours with storms towards the center and south of the national territory. So far there are accumulated maximums of: 75 mm in Neily-Coto 49, 66 mm in La Roxana-Pococí, 40 mm in the Brisas de Coto Brus, 30 mm in Santa Barbara and surrounding sectors of the north of the Central Valley.
Forecast: For the remainder of the afternoon, the presence of heavy localized rains and downpours accompanied by storms is forecast, especially in the Central and South Pacific, northwest of the North Pacific, mountainous sectors and in the west in the Northern Caribbean. The accumulated for these regions will be between 20 - 50 mm with maximums between 65 - 85 mm.
At night we expect variable rainy activity to still remain on the coasts and adjacent maritime sectors of the South Pacific and Central Pacific. The estimated accumulations for these regions will be between 10 – 40 mm with local maximums of 60 mm.
Warning: Attention in the Talamanca sector, General Valley, South Pacific border and the mountains of the Northern Caribbean, Northern Zone in the Sarapiquí sector, central sector of the Nicoya peninsula and Central Valley in general, this due to humid soils. Be attentive to the development of storm clouds which present their own and significant characteristics such as descending gusts, high precipitation intensity in short periods of time and electrical discharges.
Due to the above, the IMN recommends:
• Caution due to sewage saturation in places prone to this type of flooding.
• Prevention against electrical storms and seeking shelter in a safe place in case strong gusts of wind occur or are perceived near storm clouds, due to the possible fall of tree branches, power lines, among others. These gusts can reach 80 km/h in some isolated cases.
• Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute CR and the WEB Page: www.imn.ac.cr
J. Pablo Valverde M.
Meteorologist
DMSA-IMN
Weather warnings history
In this section you will find the weather warnings history.
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...
May
29
Aviso Meteorológico
Lluvias variables este jueves
29 de mayo de 2025
11:00 am
Diagnóstico: Condiciones propicias para la ocurrencia de lluvias variables se presentan sobre el país este día. Esto debido a varios factores: inestabilidad en la atmósfera alta, la presencia de...
May
28
Weather Warning (Update)
Tropical Wave #3 over Costa Rica this Wednesday
May 25, 2025
6.15 pm
Forecast: Tropical Wave 3 is crossing Costa Rica this Wednesday, increasing instability in its wake. In recent hours, heavy downpours have been recorded on the Pacific coast. This is more...
May
28
Weather Warning
Tropical Wave #3 over Costa Rica this Wednesday
May 28, 2025
10:00 a.m.
Diagnosis: Tropical wave #3 will cross Costa Rica during the course of Wednesday, increasing the atmospheric instability over the country and reinforcing rainfall for this afternoon and evening. ...
May
27
Weather Warning
Tropical Wave 3 will move over Costa Rica this Wednesday
May 27, 2025
07.00 p.m.
Discussion: Tropical Wave 3 is moving over eastern Panama. This system will continue its westward movement, entering Costa Rica on Wednesday. This, along with local factors such as morning...
May
26
Weather Warning (Update)
Variable rainfall in recurring areas.
May 26, 2025
6:05 p.m.
Diagnosis: The Intertropical Convergence Zone is located over Costa Rica and Panama, bringing moisture from both sides. Along with the presence of trade winds in the central Caribbean Sea and...
