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Aviso Meteorológico-IMN-250923-0525pm

Sep

25

Weather Warning

Tropical Wave #40 enters the country

September 25, 2023.
5.25 p.m.

Discussion: Tropical Wave #40 enters the national territory, which, together with local factors and the proximity of the Intertropical Convergence Zone, will maintain an ideal environment for afternoon rainfall to extend into the night period. During this afternoon, showers and thunderstorms have been recorded in the Central Valley, the North Zone and the North Pacific, the maximum accumulated values are between 30-50 mm in the last 4 hours.

Forecast: Towards the end of the afternoon and during the night, isolated rains and downpours with thunderstorms will continue in the Central Valley, the North Zone and the North Pacific, amounts between 30-60 mm. For the Central and South Pacific, scattered moderate rains and thunderstorms are estimated in these periods, amounts between 25-50 mm.

For its part, in the mountainous parts of the Caribbean, isolated rains are expected, accumulated between 10-40 mm. Towards late hours of the night, rain is possible in coastal areas of the Caribbean

Warning: Special attention in the Central and South Pacific regions because they are the sectors where the heaviest rains are expected.

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 between 80 to 100km/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

Rebeca Morera R
Meteorologist
DMSA-IMN



Weather warnings history

In this section you will find the weather warnings history.

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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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...

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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...

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Dec

30

Aviso Meteorológico

Aguaceros fuertes aislados este lunes para algunas zonas del país

30 de diciembre de 2024
9:00 am

Diagnóstico: La posición de la Zona de Convergencia Intertropical sobre el país aunado a inestabilidad en la atmósfera alta generan condiciones favorables para la presencia de lluvias variables...

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Dec

29

Weather Warning

Heavy showers this afternoon and early evening

December 29, 2024
11:20 a.m.

Diagnosis: The increase in humidity over southern Central America, favored by very weak trade winds and an anomalous position of the Intertropical Convergence Zone over the country, has generated...

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Dec

27

Weather Warning

Precipitation this afternoon and early evening

December 27, 2024
11.00 am

Diagnosis: The increase in humidity over southern Central America, favored by very weak trade winds, instability in the upper atmosphere and the abnormal proximity of the Intertropical...

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