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Aviso Meteorológico-IMN-210224-09:10am

Feb

21

Weather Warning

Rains in the Caribbean due to Cold Surge #18

February 21, 2024
9:10 am

Diagnosis: Cold surge #18 and a high humidity content in the atmosphere maintain favorable conditions for the development of rains of varying intensity during the morning and afternoon of this Wednesday, February 21. The amounts in the last 6 hours are: Northern Zone between 20 mm to 55 mm, Northern Caribbean 20 mm to 50 mm with localized maximums of 70 mm, Southern Caribbean between 10 mm - 30 mm, in the rest of the regions the amounts do not exceed the 10 mm.

In addition to this, the high levels of atmospheric pressure allow the presence of accelerated trade winds with strong to very strong gusts in the North Pacific, Central Valley and mountains of the country. The maximum gusts were recorded at the following points: La Cruz and Bagaces between 104 km/h to 107 km/h, ranges between 45 km/h to 80 km/h in other points of the North Pacific, between 80 km/h to 85 km/h in mountains of the South Pacific and ranges between 40 km/h to 60 km/h in the Central Valley.

Forecast: Cloudiness and rain over the Caribbean and Northern Zone are expected to continue during the morning of this Wednesday until the afternoon hours. A gradual decrease in rainfall is expected during the afternoon and evening period in these regions. The estimated amounts for a period of 12 hours are between 20mm to 30mm in general and maximum accumulated values located between 35mm to 55mm near and on the mountains of the North Caribbean, South Caribbean, the coast of Limón and towards the border sectors of Sixaola. and mountains of Talamanca. Part of the precipitation may occur as drizzle to the north and east of the Central Valley during the morning, especially in the mountains.

Towards the afternoon and evening period, showers are estimated on the coast of the Central Pacific and South Pacific, although there is moderate uncertainty in these rains. Ranges are estimated between 10 mm to 35 mm with localized maximums of 40-50 mm during the afternoon and night. In the North Pacific, no rain is expected this day.

During this Wednesday a windy pattern will continue in the country, very strong to intense gusts of wind (between 70 km/h to 100 km/h) are expected in the North Pacific, strong to very strong gusts (between 50 km/h to 70 km /h) in the Central Valley, in mountainous sectors of the Central Pacific and South Pacific, very strong gusts will occur (between 65 km/h to 90 km/h). Windy conditions will vary in intensity throughout the day on Thursday, still maintaining moderate trade winds with the possibility of moderate to strong gusts.

From Wednesday to Thursday, a decrease in maximum temperatures is expected, due to cloud cover and the cold mass in the north of the country. The latest analyzes carried out show that a reduction of 3 °C to 6 °C may occur in the North Zone and the Caribbean; and between 2 °C to 4 °C in the Central Valley and mountainous sectors.

It is expected that the influence of Cold Surge #18 will gradually decrease during the afternoon and evening of Wednesday, February 21, where the country will no longer experience precipitation associated with the system during the night of this Wednesday until the early hours of Thursday, the 22nd. of February.

Warning: Special attention due to very strong gusts of wind in the North Pacific and the Central Valley. In addition, high soil saturation in the mountains of the Northern Zone and the Caribbean.

Due to the above, the IMN recommends:

• Caution due to sewage saturation in places in the Northern Zone and the Caribbean.
• Prevention of wind gusts and their possible impact on roofs, electrical wiring, signs, trees; as well as in the mountainous parts of the country and Guanacaste (national parks, volcanoes).
• Caution in air navigation due to increased turbulence, as well as in maritime navigation due to increased rough seas, especially in the North Pacific, Gulf of Nicoya and northern Central Pacific.
• Avoid burning of all types, as they can get out of control.
• Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute CR and the WEB Page: www.imn.ac.cr

Paulo Solano
Meteorologist
DMSA-IMN



Weather warnings history

In this section you will find the weather warnings history.

Apr

13

Aviso Meteorológico

Patrón ventoso persiste este sábado

13 de abril de 2024
10:00 am

Diagnóstico: Elevados niveles de presión atmosférica sobre la cuenca del Mar Caribe favorecen un fuerte aceleramiento del viento alisio en la región centroamericana. Particularmente sobre Costa...

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Apr

12

Weather Warning

Windy conditions this Friday and weekend

Discussion: The gradual increase in atmospheric pressure over the Caribbean Basin has caused the increase in trade winds in Costa Rica. The Central Valley, the North Pacific and the mountain...

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Apr

11

Weather Report N°6

Gradual return to normal weather conditions in the Caribbean regions and North Zone region

April 11th, 2024
9.00 a.m.

Diagnosis: After several days with abundant rainfall in both the Caribbean and the Northern Zone, in the last hours there was a decrease in rainfall in these regions, registering amounts not...

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Apr

10

Informe Meteorológico N°5

Precipitaciones de variable intensidad en las montañas del Caribe y el Pacífico

10 de abril de 2024
09:00 p.m.

Informe Meteorológico N°5 Precipitaciones de variable intensidad durante la noche y madrugada en las montañas del Caribe y el Pacifico 10 de abril de 2024 09:00 p.m. Diagnóstico:...

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Apr

10

Meteorological Report N°4

Rainy conditions in the Caribbean and Northern Zone

April 10, 2024
9:00 am

Diagnóstico: Condiciones inestables se mantienen en el Caribe, Zona Norte y sectores marítimos del Pacífico Central y Sur. Esto debido al alto contenido de humedad en la atmósfera, así como a la...

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Apr

10

Informe Meteorológico N°3

Precipitaciones débiles durante la noche en el Caribe y la Zona Norte

10 de abril de 2024
03:00 a.m.

Diagnóstico: El ingreso de humedad desde el Mar Caribe y la atmósfera inestable cerca de Costa Rica debido a la cercanía de la Zona de Convergencia Intertropical trajo inestabilidad en el...

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Apr

09

Informe Meteorológico N°2

Precipitaciones de variable intensidad en el Caribe, la Zona Norte y partes del Pacífico

9 de abril de 2024
09:00 p.m.

Diagnóstico: El constante ingreso de humedad desde el Mar Caribe y la atmósfera inestable cerca de Costa Rica debido a la cercanía de la Zona de Convergencia Intertropical, ha generado...

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Apr

09

Weather Report N°1

Variable precipitation in the Caribbean, the Northern Zone and parts of the Pacific

April 9th, 2024
3:00 p.m.

Diagnosis: The constant entry of humidity from the Caribbean Sea and the unstable atmosphere near Costa Rica due to the proximity of the Intertropical Convergence Zone, has generated variable...

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Apr

09

Weather Warning

Rainfall persists in the Northern Caribbean and Northern Zone

April 9th, 2024
8.30 a.m.

Diagnosis: The constant inflow of moisture from the Caribbean Sea and the unstable atmosphere over Costa Rica has generated rainfall in recent days in the Caribbean and Northern Zone. Yesterday,...

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Apr

07

Aviso Meteorológico

Aguaceros en el Caribe Norte y Zona Norte

7 de abril de 2024
8.40 am

Diagnóstico: La presencia valores altos de presión atmosférica en el Mar Caribe, genera vientos alisios acelerados para este sábado en nuestro país, lo cual a su vez está provocando arrastre de...

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