Weather warnings

Jun

13

Aviso Meteorológico

Mayor ocurrencia de precipitación en el Pacífico-Actualización-

12 de junio de 2025
11:40 p.m.

Diagnóstico: El ingreso de humedad hacia el territorio nacional, así como la cercanía de la Zona de Convergencia Intertropical, han favorecido precipitaciones con tormenta eléctrica de variable...

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Jun

12

Weather Warning (Update)

Greater occurrence of rainfall in the Pacific

June 12, 2025
5:00 p.m.

Diagnostic: The Intertropical Convergence Zone is beginning to strengthen off the Pacific coast of Costa Rica, increasing the flow of moisture from the ocean to both sides of the country. ...

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Jun

12

Weather Warning

Increased rainfall in the Pacific

June 12, 2025
10.00 a.m.

Discussion: The Intertropical Convergence Zone is beginning to strengthen off the Pacific coast of Costa Rica, increasing the intensity of the moisture flow entering from the oceanic sector...

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Jun

11

Weather Warning (Update)

Afternoon showers with thunderstorms for the Pacific this Wednesday

June 11, 2025
5.45 pm

Diagnosis: Unstable conditions persist in different layers of the atmosphere over the region. This, combined with local factors, favors a high probability of heavy downpours with thunderstorms...

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Jun

11

Aviso Meteorológico

Tarde de aguaceros con tormenta para el Pacífico este miércoles

11 de junio de 2025
10:30 am

Diagnóstico: Condiciones inestables persisten en diferentes capas de la atmósfera sobre la región, esto aunado a factores locales favorece alta probabilidad de aguaceros fuertes con tormenta para...

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Weather warnings history

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Aviso Meteorológico-IMN-310124-0700am

Jan

31

Weather Warning

Strong winds persist this Wednesday

January 31, 2024
7.00 a.m.

Discussion: The high atmospheric pressure values maintained in the Caribbean Basin and Central America, due to the transit of cold thrust #14, generate very windy conditions in the country. The strongest gusts have been recorded in the north of Guanacaste, which have reached 100 km/h in La Cruz and Bagaces; In addition, in Cañas 66 km/h is recorded, Heredia 62 km/h, Ciudad Colón and Pavas 55 km/h, among others. As a result of the drag of the wind, humidity enters from the Caribbean Sea, favoring cloudiness and intermittent rains in the province of Limón and the Northern Zone, with amounts less than 15 mm in the last 6 hours.

Forecast: Very windy conditions will persist in the country this Wednesday. The estimated speeds are: between 40-70 km/h for the Central Valley and lower parts of the North Pacific, in the mountain ranges between 70-85 km/h and around 105 km/h for the north of Guanacaste. Analysis indicates a trend of gradual reduction in the wind pattern late into Thursday.

Cloudiness and scattered rains are expected in the Caribbean and the North Zone; The rains will be present throughout the day, with greater recurrence during the night, accumulated between 25-50 mm in periods of 12 to 24 hours. Part of the cloud layer can occasionally extend towards the province of Cartago, north of San José and Heredia, generating drizzles with accumulations that do not exceed 5 mm. In the center and west of the Central Valley, as well as regions of the Pacific, low to partial cloudiness will prevail, only towards the South Pacific there is the possibility of occasional and short-lived rain during the afternoon.

Warning: Special attention due to very strong gusts of wind in the North Pacific and the Central Valley.

Due to the above, the IMN recommends:

  • 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


Rebeca Morera R
Meteorologist
DMSA-IMN