Weather warnings

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...

See More

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...

See More

Jul

07

Weather Warning

Heavy downpours during the afternoon in the Pacific and northern regions

July 07th, 2025
10.40 a.m.

Discussion: Tropical Wave 13 is located in western Costa Rica, close to entering the Pacific Ocean. Although it is a weak wave, its interaction with the Intertropical Convergence Zone increases...

See More

Jul

06

Aviso Meteorológico

Efectos de la onda tropical #13 en el país este domingo y lunes

06 de julio de 2025
11.25 am

Diagnóstico: La onda tropical #13 se localiza este domingo al oeste de Panamá, generando inestabilidad en el mar Caribe frente a la costa costarricense, lo que favorece lluvias en el Caribe Sur...

See More

Jul

01

Weather Warning

Rainy conditions in the Caribbean and Northern Zone this Tuesday and Tropical Wave #12

Jul 01th, 2025
10 am

Diagnosis The strengthening of the trade winds over the central and northern regions of the country has produced wind gusts of up to 50 km/h in areas such as Alajuela this morning. This...

See More

Weather warnings history

In this section you will find the weather warnings history.

« Back

Aviso Meteorológico-IMN-030720-1030am

Jul

03

Weather Warning

Tropical wave # 15 this Friday in Costa Rica

July 3, 2020
10.30 a.m.

Diagnosis: Tropical wave # 15 will be crossing Costa Rica this Friday. It will be generating moderate rainfall and thunderstorms this afternoon and evening in the country.

Forecast: Showers with thunderstorms are expected in the regions of both the Central Pacific and the South Pacific, as well as the Northern Zone, with estimates between 30-40mm and maximums of 90mm.

In the Central Valley and the North Caribbean, there are probabilities of isolated showers with thunderstorms in the region, with estimated amounts of 15-20mm and maximums of 30mm in short periods of time.

In the North Pacific, the rains will be dispersed in the region, concentrated in the Cordillera and the Nicoya Peninsula, with estimated amounts between 10-20 mm in the mountains; and between 30-40 mm near the coast.

Warning: Due to the significant saturation levels recorded by the rains of the last hours in the North Zone and South Pacific.

Due to the above, the IMN recommends:

• Caution in areas vulnerable to flooding due to increased flow in rivers and streams, especially in the North, Pacific and Central Valley.
• Take refuge in a safe place in case of hearing an electrical storm or perceiving strong gusts of wind near storm clouds, as well as precaution for possible fall of 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

Juan Diego Naranjo Díaz
Meteorologist
DMSA-IMN

 


By Juan Diego Naranjo 7/3/20 7/3/20 7/3/20