Weather warnings
Aug
31
Weather Warning (Update)
Afternoon rain and thunderstorms in several regions of the country
August 31, 2024
5:15 p.m.
Diagnosis: Unstable and humid conditions will continue on Saturday due to an active Intertropical Convergence Zone over our country. Since early afternoon, the presence of scattered showers...
Aug
31
Weather Warning
Afternoon rain and thunderstorms in several regions of the country
August 31, 2024
10:00 am
Diagnosis: On Saturday, unstable and humid conditions will continue due to an active Intertropical Convergence Zone over our country. Since early in the morning, the presence of showers in...
Aug
30
Aviso Meteorológico (Actualización)
Aguaceros en el Pacífico esta tarde (Actualización)
30 de agosto de 2024
5:30 p.m.
Diagnóstico: Condiciones atmosféricas más inestables están presentes este viernes sobre el país, esto debido a la actividad de la Zona de Convergencia Intertropical y a un mayor contenido de...
Aug
30
Aviso Meteorológico
Aguaceros en el Pacífico esta tarde
30 de agosto de 2024
2:00 pm
Diagnóstico: Condiciones atmosféricas más inestables están presentes este viernes sobre el país, esto debido a la actividad de la Zona de Convergencia Intertropical y a un mayor contenido de...
Aug
27
Aviso Meteorológico (Actualización)
Aguaceros con tormenta vespertinos hacia sectores del centro y norte del país
27 de agosto de 2024
6.15 p.m.
Diagnóstico: La presencia de vientos alisios débiles posiciona la Zona de Convergencia sobre el país. Lo anterior sumado a los factores locales y a valores altos de humedad debió al paso de la...
Weather warnings history
In this section you will find the weather warnings history.
Aviso Meteorológico-IMN-120524-10.30 am
May
12
Weather Warning
Downpours with a storm this Sunday
May 12, 2024
10.30 am
Diagnosis: Once again, local factors such as sea breezes and high temperatures, combined with the activity of the Intertropical Convergence Zone, favor conditions for the occurrence of downpours with storms in the center and north of the national territory this afternoon.
Forecast: From the early hours of the afternoon, cloudiness is anticipated that would cause downpours accompanied by an electrical storm in the South Pacific (Valle del General and border sector) and Central Pacific (Zona de los Santos and coastal sector). Next, we expect the development of storm clouds with heavy downpours in the Central Valley (San José and Heredia), the North Zone (Ciudad Quesada and Arenal) and the North Pacific (Nicoya, Orotina, Miramar, Bagaces, Liberia). The maximum amounts are estimated between 25 - 50 mm with maximums between 60 - 80 mm, possible larger amounts from time to time. As for the Caribbean, downpours with storms are expected in the mountains. The estimated accumulated amounts will be between 20 - 45 mm with localized maximums of up to 60 mm.
At night, rains and downpours are expected between the Central Pacific and the North Pacific only at the beginning of the period. Amounts between 20 to 50 mm, with larger amounts occasionally. Warning: Attention in sectors of the North Pacific (around the Gulf of Nicoya and Miramar, central Nicoya, Liberia and Orotina), in general the Central Pacific and South Pacific due to humid soils both in low parts and especially in mountainous areas (Valle del General presents high saturation as well as border basins).
Special attention in urban areas of the Central Valley due to possible flooding due to sewage saturation, especially in San José, Alajuela and Heredia. The Northern Zone shows moderate soil saturation in the Ciudad Quesada and Arenal basins. Be attentive to the development of storm clouds which present their own and significant characteristics such as descending gusts, high precipitation intensity in short periods of time and electrical discharges.
Due to the above, the IMN recommends: • Caution due to sewage saturation in places prone to this type of flooding. • Prevention against electrical storms and seeking shelter in a safe place in case strong gusts of wind occur or are perceived 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: National Meteorological Institute CR and the WEB Page: www.imn.ac.cr
Gabriela Chinchilla R
Meteorologist
DMSA-IMN
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