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,...
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...
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...
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...
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...
Weather warnings history
In this section you will find the weather warnings history.
Aviso Meteorológico-IMN-170120-1000am
Jan
17
Weather Warning
High pressure system favors strong trade winds in the country
January 17, 2020
10:00 am
Diagnosis: a high pressure system has favored an increase in trade winds in the national territory. The most intense gusts are perceived today are located in Guanacaste with maximums of 100 km / h and 85 km / h in the mountainous sectors of the country.
Forecast: during the morning and afternoon conditions of moderate to strong winds will be maintained with maximums of up to 110 km/h in Guanacaste, on the other hand, moderate winds with maximum gusts of 80 km/h will be presented in the Central Valley and mountains of the central mountain range. Intermittent rains are expected in the Caribbean and North Zone, particularly in the highlands, with accumulated between 5-40 mm this Friday. In the rest of the country rainfall is not expected during this day.
At night, an increase in trade winds is expected, which will be increasing gradually throughout the country, reaching gusts of up to 120 km / h.
It is expected that during the weekend the affectation of said system will be maintained, generating strong trade winds, cloudy and rainy conditions in the Caribbean and North Zone.
Due to the above, the IMN recommends:
Extreme precautions due to strong winds and their possible impact on roofs, electrical wiring, signs, trees; as well as in the mountainous parts of the country (national parks, volcanoes).
Caution for boats by choppy sea and very strong waves in the North Pacific, Gulf of Nicoya, Central Pacific and the Caribbean Sea, as well as air navigation due to turbulence over the mountainous sectors.
Avoid burning of all kinds as they can get out of control.
Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute and the Website: www.imn.ac.cr
Daniel Poleo
Meteorologist
DMSA-IMN
