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Aviso Meteorológico-IMN-091024-11.20 am

Oct

09

Weather Warning

Unstable conditions remain over our country this afternoon and evening

October 09, 2024
11:20 am

Diagnosis: We continue with a high humidity content in the country, which is being caused by the position of the Intertropical Convergence Zone and the systems in the middle and upper atmosphere. The precipitations have remained active on the Pacific side during the early morning and the morning, with accumulations between 10 to 30 mm (mainly in the South Pacific). In addition, satellite images show cloud developments extending towards the Talamanca mountain range and the Central Volcanic mountain range.

Forecast: For this afternoon, showers with thunderstorms are expected in the North Zone and west of the Caribbean. The estimated accumulations would be between 10 - 50 mm with maximum amounts between 50 - 70 mm. In the case of the Pacific regions, variable rainfall is expected with occasional thunderstorms and mainly over the mountains. The accumulations would be between 20 - 40 mm with maximum amounts of 70 mm. On the other hand, intermittent rains are expected in the Central Valley with accumulated amounts varying between 10-30 mm.

Warning: Very saturated soil conditions continue throughout the central mountainous part of the country on both sides, the Central Valley and in low areas of both peninsulas in the Pacific. In addition, a large part of the Northern Zone registers high saturation values. This situation indicates a risk of incidents due to sewer saturation, river flooding or landslides in areas where rain is estimated to occur during this day.

Due to the above, the IMN recommends: • Caution due to sewer saturation in places prone to this type of flooding. • Prevention in the event of an electrical storm and seeking shelter in a safe place in the event of strong gusts of wind occurring or 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 media: Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEBSITE: www.imn.ac.cr

Gabriela Chinchilla R 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...

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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,...

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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...

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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...

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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...

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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...

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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...

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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. ...

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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...

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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...

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