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-311224-1130am

Dec

31

Weather Warning

Rains of variable intensity during this afternoon and early evening

December 31, 2024
11.30 a.m.

Discussion: The Intertropical Convergence Zone remains close to the country, along with instability in the upper atmosphere, these are factors that increase the high probability of rain and showers with thunderstorms during this afternoon and early evening, especially in the Central and South Pacific.
In the early morning, cloudy nuclei near the Pacific coasts favored scattered rains in these areas, with amounts less than 10 mm.

Forecast: For this afternoon and early evening, rains of varying intensity and isolated showers with thunderstorms are expected in the Central and South Pacific, amounts between 30-60 mm, with localized accumulations possible. Meanwhile, in the Central Valley, Nicoya Peninsula, Northern Zone and Caribbean mountains, isolated rains and showers with accumulations between 10-40 mm are possible.

Warning: Special attention in the Northern Zone, Northern Caribbean, Southern Pacific and Nicoya Peninsula due to high levels of saturation (80% and 90%). Therefore, these are areas vulnerable to the occurrence of floods and landslides.

Due to the above, the IMN recommends:

  • Caution due to sewer saturation in places prone to this type of flooding.
  • Prevention against thunderstorms and seek shelter in a safe place if 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: Instituto Meteorológico Nacional CR and the WEB Page: www.imn.ac.cr

Rebeca Morera R.
Meteorologist
DMSA/IMN