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...

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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...

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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...

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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...

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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...

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Weather warnings history

In this section you will find the weather warnings history.

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Aviso Meteorológico-IMN-301224-04.00 p.m.

Dec

30

Weather Warning (Update)

Isolated showers in some areas of the country in the late afternoon.

December 30, 2024
4 p.m.

Diagnosis: The position of the Intertropical Convergence Zone over the country together with atmospheric instability have generated variable rainfall in the country since the morning. Up to this hour, rainfall amounts of 70 mm have been registered in the North Zone (Upala) and the North Pacific (Liberia), between 20 mm and 30 mm in the Central Valley, while in the rest of the country the amounts are between 5 mm and 15 mm.

Forecast: Rainfall will continue in scattered distribution in the Central Valley, Central Pacific, North Pacific and Northern Zone; as well as occasional showers in the mountains of the South Pacific. Maximum amounts between 10 mm and 30 mm are estimated for the next 6 hours.

Rainfall in both regions may extend to the Pacific coastal sector in the early evening.

Warning: Special attention should be paid to the mountainous sectors of the North Pacific and Northern Zone, as well as the South Pacific, due to the fact that the basins have saturation levels between 80% and 90%. Therefore, these sectors are vulnerable to the occurrence of floods and landslides.

Due to the above, the IMN recommends:

  • - Caution for sewer saturation in places prone to this type of flooding.
  • - Prevent thunderstorms and seek shelter in a safe place in case of strong gusts of wind near the 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

     
Juan Diego Naranjo Díaz
Meteorologist
DMSA/IMN