Weather warnings

Apr

21

Weather Warning

Trade winds and increased moisture content to the south of the region

April 21, 2025
09:40 a.m.

Diagnosis: The increase in atmospheric pressure in the northern Caribbean Sea, maintains accelerated trade winds in the center of the basin, this coupled with high humidity values in the region,...

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Apr

18

Aviso Meteorológico

Condiciones ventosas persisten este viernes

18 de abril de 2025
9:30 am

Diagnóstico: Un fuerte gradiente de presión atmosférica sobre el Mar Caribe mantiene el viento acelerado en la región centroamericana. En Costa Rica se han registrado ráfagas máximas de 96.7 km/h...

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Apr

17

Weather Warning

Moderate to strong wind gusts this Thrusday

April 17, 2025
09:30 a.m.

Diagnosis: High atmospheric pressure levels north of the Caribbean Sea basin are favoring accelerated trade winds over the country. So far, the lower reaches of the Central Valley and the North...

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Apr

16

Aviso Meteorológico

Ráfagas de viento de moderadas a muy fuertes este miércoles

16 de abril de 2025
10:30 am

Diagnóstico: Un nuevo incremento en la presión atmosférica sobre la cuenca del Mar Caribe está favoreciendo un fuerte aceleramiento del viento sobre el país. Los sectores bajos del Valle Central...

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Apr

14

Aviso Meteorológico

Lluvias en el Caribe y Zona Norte este lunes

14 de abril de 2025
9:00 am

Diagnóstico: El empuje frío #19 comienza a alejarse de la región, sin embargo, aún se mantienen condiciones atmosféricas inestables en el Caribe y Zona Norte. Durante la madrugada y lo que va de...

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Weather warnings history

In this section you will find the weather warnings history.

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Aviso Meteorológico-IMN-090624-0600pm

Jun

09

Weather Warning (Update)

Tropical wave #7 will keep rain tonight

June 09, 2024
06.00 p.m.

Discussion: Tropical wave #7 is located in the West of Costa Rica, the passage of this system and its interaction with the Intertropical Convergence Zone have generated this afternoon rains and showers of varying intensity in the Central Valley, Northern Zone and Pacific regions. So far the highest accumulations have been recorded in: Orosi Volcano 76 mm, Parrita 50 mm, Pérez Zeledón 40 mm, Cañas 36 mm, Bagaces 32 mm, Coto Brus 34 mm, Barva de Heredia 33 mm, La Garita de Alajuela 29 mm, among others.

Forecast: Early tonight, showers and thunderstorms are expected in the North Zone, North and Central Pacific and coastal parts of the South Pacific, with accumulations of 20-50 mm in 6-hour periods, with higher amounts possible in localized areas. A gradual decrease in precipitation is expected later in the night in these regions. Meanwhile, in the Central Valley and mountains of the Caribbean, light rain and fog banks are expected in the early hours of the night, amounts between 10-30 mm in 6-hour periods.

Tropical wave #7 will continue to advance towards the Pacific Ocean, so its influence will gradually decrease later tonight. No effect of this system is expected for Monday in the country.

Warning: The rains projected for urban areas may again be precursors to flooding and sewer saturation in already recurring sectors. Saturated soils are recorded in the province of Cartago, the Sarapiquí Basin and the entire Northern Zone, as well as in the North and South Pacific, making these regions vulnerable to landslides and possible flooding.

Due to the above, the IMN recommends:

  • Be careful due to sewer saturation in places prone to this type of flooding.
  • Prevention against electrical storms and seek shelter in a safe place in case of strong gusts of wind 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 networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB Page: www.imn.ac.cr

Rebeca Morera R
Meteorologist
DMSA-IMN