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Weather Warning-IMN-170524-9:10 a.m.

May

17

Weather Warning

Friday afternoon with variable rains in the country

May 17, 2024
09:10 a.m.

Diagnosis: The Intertropical Convergence Zone maintains instability and humidity over central and southern Central America, coupled with local factors such as breezes and morning warming, will be favoring afternoon rain over the country.

Forecast: During the afternoon today, the presence of downpours with storms is forecast over the mountains of the South Pacific, towards the center and west of the Central Valley, as well as the Central Pacific and North Pacific. The accumulations for these regions will be between 30 - 50 mm with maximums between 60 - 80 mm, with the sectors in the center and northwest of the country being where the highest accumulations are recorded.

The Northern Zone and Caribbean regions will present scattered showers and downpours accompanied by electrical storms, being over the mountains for the Caribbean sectors. The estimated accumulations for these regions will be between 15 – 40 mm with local maximums of 60 mm.

Warning: Be careful in mountainous sectors of the General Valley, those of the South Pacific and the mountains of the Northern Caribbean, this due to humid soils. Be attentive to the development of storm clouds which present their own and significant characteristics such as descending gusts, high precipitation intensity in short periods of time and electrical discharges.

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 80 km/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

Jose Pablo Valverde Mora

Meteorologist

DMSA-IMN



Weather warnings history

In this section you will find the weather warnings history.

May

09

Aviso Meteorológico

Heavy downpours with thunderstorms this afternoon on the Pacific side

May 9, 2025
10:00 am

Diagnostic: The Intertropical Convergence Zone remains positioned near our country. Additionally, local factors such as high temperatures and the entry of sea breezes contribute to favorable...

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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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May

06

Weather Warning

Showers This Tuesday in Several Regions of the Country

May 6, 2025
9:20 a.m.

Diagnosis: The proximity of the Intertropical Convergence Zone, together with local factors such as daytime heating and moisture influx from the Pacific Ocean, will favor variable rainfall over...

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May

04

Weather Warning

Rainy activity this afternoon and early evening

May 04, 2025
10.45 a.m.

Discussion: The unstable atmospheric pattern continues today, along with high humidity, associated with the proximity of the Intertropical Convergence Zone. These conditions create an ideal...

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May

03

Weather Warning

Heavy rains and a thunderstorm this afternoon and early evening

May 03, 2025
10.25 a.m.

Discussion: The Intertropical Convergence Zone continues over the country, generating a high degree of instability and humidity. This, combined with the warm temperatures recorded this morning,...

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May

02

Weather Warning

Intertropical Convergence Zone over the country this Friday

May 02, 2025
10.45 am

Diagnosis: Highly unstable conditions continue across the country this Friday. The ITCZ ​​remains positioned over the country, contributing moisture to the Pacific and Central Valley since early...

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