Weather warnings
Aviso Meteorológico-IMN-210524-0910 a.m.
May
21
Weather Warning
Rainy activity this Tuesday in the country
May 21, 2024
9.20 am
Diagnosis: Tropical wave #3 at this time is located between the Pacific Ocean and Guanacaste, moving westward, leaving extensive instability in the Intertropical Convergence Zone, which in turn remains very active between Costa Rica and Panama.
Forecast: This morning there will be rains of varying intensity in the Caribbean and Northern Zone, as well as in the Central Volcanic Mountains and east/north of the GAM. The estimated accumulations for these regions will be between 5 – 30 mm with local maximums of 40 mm.
This afternoon, the presence of heavy rains/downpours with storms is forecast over the Central and South Pacific, Central Valley, North Pacific, mountainous sectors of the Northern Zone and surrounding areas. The accumulated amounts for these regions will be between 40 - 70 mm with maximums between 70 - 100 mm; larger amounts are not ruled out from time to time.
At night we expect strong rainy activity to still remain on the coasts and adjacent maritime sector of the Pacific, from the south of Nicoya to Osa. The estimated accumulations for these regions will be between 10 – 40 mm with local maximums of 50 mm.
Warning: Attention in the Talamanca sector, General Valley, South Pacific border and the mountains of the Northern Caribbean, Northern Zone in the Sarapiquí sector, central sector of the Nicoya peninsula and Central Valley in general, this due to humid soils. 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.
DMSA-IMNWeather warnings history
In this section you will find the weather warnings history.
Jul
27
Weather Warning
Tropical wave #21 passes over Costa Rica this Saturday
July 27, 2024
09.20 a.m.
Discussion: The entry of tropical wave #21 this morning and the activity associated with the Intertropical Convergence Zone have accentuated very humid and unstable atmospheric conditions in the...
Jul
26
Weather Warning (Update)
Variable rain activity for this afternoon and evening in the country
July 26, 2024
3:35 p.m.
Diagnosis: Unstable atmospheric conditions caused by the proximity of the Intertropical Convergence Zone, high humidity content and local factors have generated rainfall this afternoon in several...
Jul
26
Meteorological Warning
Variable rain activity for this afternoon and evening in the country
July 26, 2024
10:40 am
Diagnosis: Unstable atmospheric conditions will occur again this Friday over the country. This is due to the proximity of the Intertropical Convergence Zone, the high humidity content and local...
Jul
26
Meteorological Warning
Unstable atmospheric conditions during this night
July 25, 2024
10:55 pm
Diagnosis: The high humidity content and the activity associated with the Intertropical Convergence Zone, which remains over the country, favor unstable atmospheric conditions in the national...
Jul
25
Meteorological Warning
Showers with thunderstorms this afternoon and evening in several areas of the country
July 25, 2024
10:30 am
Diagnosis: The position of the Intertropical Convergence Zone over the country, together with local factors such as high temperatures and the entry of sea breezes, favor unstable atmospheric...
Jul
24
Weather Warning
Heavy showers and thunderstorms this afternoon and evening
July 24, 2024
9:55 a.m.
Diagnosis: Humid atmospheric conditions will predominate due to the Intertropical Convergence Zone being active over the national territory. This will produce isolated showers in the north of the...
Jul
23
Weather Warning
Intertropical Convergence Zone over Costa Rica
July 23, 2024
11:00 am
Diagnosis: Humid and unstable atmospheric conditions prevail this Tuesday, due to the Intertropical Convergence Zone is active over the national territory, which has left weak rains both in the...
Jul
23
Aviso Meteorológico
Aguaceros localizados en la Vertiente del Pacífico y Zona Norte durante esta noche
22 de julio de 2024
11:30 p.m.
Diagnóstico: Condiciones atmosféricas húmedas e inestables y la cercanía de la Zona de Convergencia Intertropical, favorecen precipitaciones de variable intensidad, incluyendo aguaceros con...
Jul
22
Weather Warning
Isolated showers with thunderstorms this afternoon
July 22, 2024.
1.45 p.m.
Discussion: The proximity of the Intertropical Convergence Zone to the national territory causes a significant contribution of humidity and instability, which is generating cloud developments and...
Jul
21
Weather Warning
Trade winds in the west side of Caribbean Sea and Intertopical Convergence Zone over the country this afternoon
July 21, 2024
09:45 a.m.
Diagnosis: The presence of accelerated trade winds in the west of the Caribbean Sea basin is perceived in northern sectors of the country, which favors the drag of humidity with the presence of...