Weather warnings

May

08

Meteorological Warning Update

(Update) Showers and thunderstorms during the afternoon and early morningmeras horas de la noche

May 8, 2025
6:00 pm

Forecast: Rainy conditions have been observed this afternoon on the Pacific coast, much of the Central Valley, and mountainous areas of the Caribbean and the Northern Zone, due to the activity of...

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May

08

Weather Warning

Showers and thunderstorms during the afternoon and early evening

May 08, 2025
10.30 a.m.

Discussion: The Intertropical Convergence Zone remains located over Costa Rica, generating significant moisture and instability. This, along with morning warming and the arrival of sea breezes,...

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May

07

Aviso Meteorológico Actualización

(Actualización) Lluvias y aguaceros fuertes en el Valle Central y la vertiente del Pacífico

7 de mayo de 2025
6:20 pm

Diagnóstico: La Zona de Convergencia Intertropical sobre el país, en conjunto con factores locales como el calentamiento diurno y el ingreso de humedad desde el Océano Pacífico, favorecerá...

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May

07

Weather Warning

Heavy rain and downpours in the Central Valley and the Pacific slope

May 7, 2025
09:35 a.m.

Diagnosis: The Intertropical Convergence Zone (ITCZ), combined with local factors such as daytime warming and the entry of moisture from the Pacific Ocean, will favor variable rainfall throughout...

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May

06

Weather Warning (Update)

Heavy showers this afternoon and early evening in the country

May 6, 2025
6:20 p.m.

Diagnosis: The proximity of the Intertropical Convergence Zone, combined with local factors such as daytime warming and the entry of moisture from the Pacific Ocean, has favored heavy downpours...

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Weather warnings history

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Afternoon showers in several areas of the country this Sundayas zonas del país este domingo

Sep

17

Meteorological Warning

Afternoon showers in several areas of the country this Sunday

September 17, 2023
11:00 am

Diagnosis: Local factors combined with the positioning of the Intertropical Convergence Zone over the country generate unstable atmospheric conditions. During the morning, scattered rains have been recorded in coastal sectors of the South Caribbean, Central and South Pacific, as well as in the south of the Nicoya Peninsula and in the border area with Nicaragua. Amounts recorded between 5-15 mm with a maximum located of 57 mm in Jiménez de Osa.


Forecast: For this afternoon and early evening, scattered showers with localized storms are expected for the Central and South Pacific, as well as the Nicoya Peninsula and mountainous areas of the North Pacific. Estimated amounts between 30-70 mm with possible localized higher amounts.


For the Central Valley, isolated showers are expected with the probability of an intense electrical storm to the west and north of the region. In addition, scattered showers are expected in sectors in the center, south and east of the region, with a possible storm in mountainous areas. Maximum amounts estimated between 15-50 mm with the possibility of localized higher values.


For the Caribbean and the North Zone, isolated downpours are expected with a strong storm located in the border area and mountainous sectors. Estimated amounts between 25-55 mm and possible specific accumulations between 60-80 mm. For coastal areas, scattered rains are expected with estimated amounts between 5-25 mm.


Warning: Special attention in the Sarapiquí sector and around Braulio Carrillo in the Northern Caribbean and Northern Zone, as well as in the border area with Panama and around the Talamanca mountain range because these areas have high levels of soil saturation which increases the risk of incidents.


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


Roberto Vindas

Meteorologist

DMSA-IMN