Weather warnings

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...

See More


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...

See More


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...

See More


May

15

Weather Warning

Rainy conditions this afternoon and evening

May 15, 2025
10.45 a.m.

Discussion: The Intertropical Convergence Zone near Costa Rica and instability in the upper atmosphere, along with morning warming, are contributing factors to the presence of cloudiness and...

See More


May

14

Weather Warning (Update)

Instability after the passage of Tropical Wave #1

May 14, 2025
04.35 p.m.

Discussion: Atmospheric instability persists over Costa Rica following the passage of Tropical Wave #1 yesterday. This, along with activity associated with the Intertropical Convergence Zone...

See More


Weather warnings history

In this section you will find the weather warnings history.

« Back

Meteorological Warning

May

21

Meteorological Warning

Showers with a thunderstorm in the Central and South Pacific tonight

May 21, 2024
09:40pm

Diagnosis: Humid and unstable atmospheric conditions, favored by the passage of tropical wave #3, in addition to the activity associated with the Intertropical Convergence Zone, have favored downpours with thunderstorms in the Central and South Pacific regions during late afternoon and so far into the night period. The most significant amounts of the last 6 hours are the following: Marina Pez Vela 232mm, Finca Damas 82mm, Parrita 80mm, Barú 65mm, Ciudad Neily 60mm and Altamira 43mm.

 

 

Forecast: For the rest of the night of this Tuesday and during the early hours of this Wednesday, rains of varying intensity accompanied by an electrical storm are expected in coastal regions of the Central and South Pacific with amounts of 20 to 80 mm in 6 hours, with possible higher accumulations. in a localized manner. No significant rainfall is expected for the rest of the country.

 

 

 

Warning: Attention in coastal sectors of the Central and South Pacific, as significant rains have occurred in the last few hours. In addition, mountains of the Northern Caribbean, Northern Zone in the Sarapiquí sector, due to the saturation present in the 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 between 80 to 100 km/h in some isolated cases..
  • Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and WEBSITE: www.imn.ac.cr

 

 

Andrés Gamboa Valverde

Meteorologist

DMSA-IMN