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-160520-11am
May
16
Weather Warning
Heavy rainy activity and thunderstorm today
May 16, 2020
11.00 am
Diagnosis: The high humidity content on the country and surroundings continues this Saturday, favored by the proximity of the Intertropical Convergence Zone. In addition, very warm temperatures are recorded this morning, which are close to 32 ° C in the GAM and higher in coastal areas and plains. The combination of these factors favors the development of cloudiness, promoting strong rainy and electrical activity during the afternoon and early evening.
Forecast: During the afternoon and in the first hours of the night, showers of variable intensity and heavy showers with thunderstorms are anticipated in the Pacific regions, especially in the Central Pacific and North Pacific, with accumulated between 25-75 mm of 3- 6 hours.
For the Central Valley and the North Zone, rains and showers with an electrical storm are expected, amounts between 25-65 mm in periods of 3-6 hours, possible higher amounts locally in these regions. On the other hand, in the mountainous sectors of the Caribbean rain and showers are estimated, amounts between 10-35 mm of 3-6 hours; possible downpours in the mountains, on the coast of Limón low probability of rain is estimated in the aforementioned periods.
Due to the above, the IMN recommends:
• Caution in areas vulnerable to flooding due to sewerage saturation, increased flow in rivers and streams, as well as sectors prone to landslides.
• Prevention on national routes such as: route 1, route 10, route 27, route 21, route 32, route 34, route 141 and route 126.
• Take refuge in a safe place in case of hearing an electrical storm or perceiving strong gusts of wind near storm clouds, as well as precaution for possible falling tree branches, power lines, among others.
• Stay informed via Twitter: @IMNCR, Facebook: CR National Meteorological Institute and the WEB Page: www.imn.ac.cr
Gabriela Chinchilla
Meteorologist
DMSA-IMN
