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.
Condiciones lluviosas en la vertiente del Caribe este domingo
Jan
19
Meteorological warning
Rainy conditions on the Caribbean side this Sunday
january 19, 2020
9:30 am
Diagnosis: The strong trade winds combined with high levels of humidity in the atmosphere have led to favorable conditions for the generation of rainfall on the Caribbean slope. So far this Sunday there are accumulated maximum of 45 mm in the area, although the intensity of the rains has dropped considerably. On the other hand, part of the activity generated in the Caribbean has reached the east and center of the Central Valley causing rains and drizzles with maximum amounts between 1-10 mm. Apart from this, strong gusts are also recorded in the Guanacaste area, west of Central Street and in the mountain ranges. Some of the most intense bursts recorded so far are 101 km / h at La Cruz, 83 km / h at the Orosi volcano, 65 km / h at Cuajiniquil, 54 km / h at Alajuela and 65 km / n at Cerro Chitaria.
Forecast: Throughout this Sunday, intermittent rains will be maintained with intensity between weak and moderate for the Caribbean and North Zone regions with estimated maximum accumulated between 30-60 mm in 24 hours.
On the other hand, for the Central Valley there will be conditions of variable cloudiness between partial and total with occasional drizzles mainly in the mountainous parts and its surroundings, in addition to the center and east of the region (surroundings of Cartago, Tres Ríos, Curridabat, San Pedro , San José) with maximum cumulative estimates estimated between 10-25 mm in 24 hours. For the Pacific regions it is expected cloudiness between little and partial with isolated rains in the mountains and surroundings, the maximum accumulated are estimated to be less than 20 mm in 24 hours.As for the wind, moderate wind is expected with occasional gusts in the range of 40-60 km / h for the lower areas of Guanacaste and the Central Valley, in addition to 70-100 km / h for the mountain ranges.
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.
- • Caution in areas vulnerable to flooding due to sewer saturation, increased flow in rivers and streams, and in areas prone to landslides. Particular attention to the Banano, Coen, Telire, Barbilla, Chirripó and Reventazón rivers as they are reported to be grown, as well as to the Sixaola river that is reported overwhelmed in the sector known as Las Parcelas.
- • Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute and the Website: www.imn.ac.cr
Meteorologist
DMSA-IMN
