Weather warnings
Jul
14
Aviso Meteorológico
Onda tropical #15 transitando este lunes por el país
14 de julio de 2025
10:00 AM
Diagnóstico: La onda tropical #15 ingresó al país durante la madrugada. Aunque es una onda débil, ha generado lluvias y tormentas en zonas marítimas del Pacífico Central, el Caribe y en áreas...
Jul
13
Aviso Meteorológico Informativo
Tropical Wave #15 transiting over Costa Rica early Monday morning
July 13h, 2025
6 p.m.
Diagnosis: During the course of early Monday morning, tropical wave #15 will be passing over the national territory. Although it is a weak tropical wave, it will be interacting with the...
Jul
11
Weather Warning
Tropical wave #14 over Costa Rica this Friday
July 11th, 2025
9:50 a.m.
Diagnosis: The high humidity level across the country and the current instability are a result of Tropical Wave 14, which is positioned over the country this morning. Scattered showers have...
Jul
10
Weather Warning
Tropical Wave 14 to Pass Over Costa Rica This Friday
July 10, 2025
04.30 p.m.
Discussion: A change in the weather pattern toward more humid and unstable atmospheric conditions over Costa Rica and surrounding areas will increase the occurrence of rainfall in various parts...
Jul
08
Informative Weather Notice
Sahara dust over the country
July 08th, 2025
9:50 a.m.
Diagnosis: Increases in atmospheric pressure in the Caribbean Sea accelerate the trade winds over the basin, as well as over central and northern Spain. Furthermore, a dry, stable air mass...
Weather warnings history
In this section you will find the weather warnings history.
150820-Informe Meteorológico #5
Aug
15
Weather Report
Low pressure system affecting the country this Saturday
August 15, 2020
12:00 pm
Diagnosis: A low pressure system located in the Pacific Ocean maintains influence over the country. In addition, the intertropical convergence zone is located to the north of the national territory, which also contributes to generating unstable atmospheric conditions. During this morning rains and downpours have occurred in the Caribbean regions and mountainous parts of the country with amounts between 5-30 mm
Forecast: Throughout this afternoon, intermittent rainy activity is expected in the Caribbean and the mountainous parts of the Northern Zone, amounts estimated between 10-50 mm and possible specific higher amounts. The heaviest rains are expected for the southern Caribbean coastal areas.
For the same period, stormy downpours are projected for the Pacific slope, with the strongest activity for the coastal and surrounding areas. The maximum accumulated are estimated between 30-80 mm with possible higher amounts locally.For the Central Valley, scattered rains of moderate intensity are expected for the high parts and surroundings, in addition to possible more intense downpours in the west. Maximum amounts estimated between 10-30 mm.
Warning: Special attention in all regions of the Pacific and North Zone in general, the Central and South Pacific have high levels of saturation.Due to the above, the IMN recommends:
- Caution in areas vulnerable to flooding due to sewer saturation.
- Caution on the main national highways due to reduced visibility.
- Take refuge 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
The next report will be broadcast at 6 in the afternoon.
Roberto Vindas
Meteorologist
DMSA-IMN
