Weather warnings
May
18
Weather Warning
Scattered showers and thunderstorms this Sunday in recurring sectors
May 18, 2025
09:40 a.m.
Diagnosis: Local factors such as humid Pacific breezes and warm temperatures will favor scattered showers with thunderstorms this Sunday afternoon in areas where significant rainfall has occurred...
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...
Weather warnings history
In this section you will find the weather warnings history.
Informe meteorológico #1 Condiciones lluviosas en el Caribe y la Zona Norte
Jan
19
Meteorological Report
Rainy conditions in the Caribbean and the North Zone
January 19, 2020
6:00 pm
Forecast: During the night and early morning, intermittent rains of varying intensity between weak and moderate will be maintained on the Caribbean slope. For the whole part of the coastal part, maximum accumulations between 20-40 mm are anticipated in 12-hour periods, while in the mountainous parts, as well as in the North Zone, these are estimated at 10-30 mm. For the rest of the country drizzles are possible in the upper and nearby parts.
In addition, the moderate wind is expected to continue with occasional gusts in Guanacaste, the Central Valley and the mountain ranges with maximum intensities estimated between 40-60 km / h for the lowlands and between 50-80 km / h in the mountains.
It is expected that this Sunday the affectation of this system will be maintained, generating strong trade winds in the center and north of the national territory, as well as cloudy and rainy conditions in the Caribbean and the North Zone.
Special attention to areas with limitations to floods because due to the persistence of rain in the area during the last days the soils are saturated. Particular attention to the Banano, Colorado, Coen, Telire, Barbilla, Chirripó, Matina, Valle la Estrella and Reventazón rivers as they are reported to be grown, as well as to the Sixaola River that is reported overwhelmed in the sector known as Las Parcelas. It is recommended to be aware of the official communiqués of the National Emergency Commission, as well as of the official entities.
Next report today Sunday at 12 pm
Due to the above, the IMN recommends:
- Extreme precautions due to strong winds and their possible impact on roofs, electrical wiring, signs, trees; as well as in the mountainous parts of the country (national parks, volcanoes).
- Caution for boats by choppy sea and very strong waves in the North Pacific, Gulf of Nicoya, Central Pacific and the Caribbean Sea, as well as turbulent air navigation over the mountainous sectors.
- Avoid burning of all kinds and that can get out of control.
- Caution in areas with flood limitations due to sewer saturation, increased flow in rivers and streams, and in areas prone to landslides.
- Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute and the Website: www.imn.ac.cr
Roberto Vindas
Meteorologist
DMSA-IMN
