Weather warnings
Jan
09
Weather Warning
Rainy conditions will continue overnight in the North Zone
January 9, 2025
06.25 p.m.
Discussion: Accelerated winds prevail in the country, favoring the constant drag of humidity from the Caribbean Sea towards the national territory. The strongest gusts have been recorded in...
Jan
09
Weather Warning
Cold surge #8 leaves the Caribbean Sea, but rains will continue in the Northern Zone
January 9, 2025
10:00 a.m.
Diagnosis: This Thursday the cold push #8 is in the Atlantic moving away from the Caribbean Sea so it no longer has influence in Costa Rica. However, a high pressure system in the United States...
Jan
08
Weather Warning (Update)
Cold surge #8 maintains influence this Wednesday
January 8, 2025
5:10 p.m.
Diagnosis: This Wednesday, the effects of cold pressure #8 (EF#8) continue over the country, the cutting line associated with this system has reached Costa Rica. This favors occasional gusts in...
Jan
08
Weather Warning
Cold surge #8 maintains influence this Wednesday
January 8, 2025
09.25 a.m.
Discussion: On this Wednesday, the effects of cold surge #8 (EF#8) continue over the country, the cutting line associated with this system has reached Costa Rica. This favors windy conditions in...
Jan
07
Weather Warning
Influence of Cold Surge #8
January 7, 2025
10:00 a.m.
Diagnosis: Cold Surge #8 (EF#8, for its acronym in Spanish) entered the Caribbean Sea on Tuesday, its associated shear line is positioned close to the Nicaraguan Caribbean coast. The presence of...
Weather warnings history
In this section you will find the weather warnings history.
Weather Warning-IMN-090924
Sep
09
Weather Warning (Update)
Heavy downpours in the country this Monday
September 09, 2024
4:45 p.m.
Diagnosis: Unstable conditions continue in the atmosphere around the country, due to the proximity of the Intertropical Convergence Zone and the high humidity content. This condition, together with local factors, has favored variable rain activity for this afternoon. The most important records for this afternoon are for the North and South Caribbean, with maximum accumulations between 70 - 100 mm (Braulio Carrillo National Park, Pococí, Guápiles, Talamanca), while other sectors present between 40 - 60 mm (Turrialba). In the case of the North Zone, accumulations between 30 - 50 mm are recorded. For the Central Valley and Pacific regions, more localized accumulations are recorded and between 10 - 40 mm.
Forecast: For the rest of the afternoon and early evening, showers with strong thunderstorms will continue (decreasing in intensity at night), these in the Caribbean regions and parts of the Northern Zone, with accumulated amounts between 30 - 50 mm with maximum amounts between 70 - 110 mm.
For the Pacific slope, particularly for the mountainous areas and around the border with Panama, around the Osa Peninsula in the South Pacific, around the Gulf of Nicoya, isolated showers with thunderstorms are expected. Estimated amounts between 30 - 60 mm with possible amounts close to 80 mm.
For the Central Valley, variable rains are expected in the first hours with accumulated amounts between 10 - 35 mm.
Warning: Saturated soil conditions continue in the Caribbean and the Northern Zone, in the Central Valley, mountains of the Pacific slope. This situation indicates a significant risk of incidents due to sewer saturation, river flooding or landslides, so special caution is recommended.
Due to the above, the IMN recommends:
• Caution due to sewer saturation in places prone to this type of flooding.
• Prevention against electrical storms and seek shelter in a safe place in case of strong gusts of wind 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: Instituto Meteorológico Nacional CR and the WEB Page: www.imn.ac.cr
Jose Valverde Mora
Meteorologist
DMSA-IMN