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Aviso Meteorológico-IMN-120724-Viento alisio acelerado y lluvias en el país este viernes

Jul

12

Meteorological Warning

Accelerated trade winds and rains in the country this Friday

July 12, 2024
10:20 am

Diagnosis: Unstable atmospheric conditions persist in southern Central America, due to the position of the Intertropical Convergence Zone and the drag of humidity from the Caribbean by the trade winds. This morning there has been variable cloudiness with scattered rain in the Caribbean and the Northern Zone, as well as in coastal areas of the South Pacific. The maximum amounts of precipitation recorded so far are between 5-20 mm.

Forecast: Variable weather conditions are projected for this Friday over the national territory. The trade wind will remain strong with occasional gusts in the Central Valley (35-45 km/h), Guanacaste (35-55 km/h) and in the mountain ranges of the country (60-70 km/h)

In the Caribbean and the Northern Zone, partly cloudy skies are expected in the morning with some intermittent rains of weak to moderate intensity. For the second half of the afternoon and the night period, an increase in cloud cover is expected, as well as an intensification of rains. Isolated heavy showers are expected, especially in mountainous areas and surrounding areas (places such as San Carlos, Sarapiquí, Pococí, Aguas Zarcas, Turrialba, among others) for this period. Maximum amounts between 40-70 mm with the possibility of values ​​greater than 90 mm localized.

For the Central Valley, the entry of cloudiness from the Caribbean maintains the probability of occasional rains in the north, central and east sectors, while in the west and south isolated showers are expected with the possibility of short-term storms. Maximum amounts estimated between 5-30 mm.

For the Central and South Pacific, there is a probability of scattered showers with thunderstorms mainly in the mountainous areas and surrounding areas, as well as in the vicinity of the border area with Panama (places such as Pérez Zeledón, Buenos Aires, San Marcos, San Vito, Laurel, among others). For the North Pacific, scattered rains are expected in the center and south of the Nicoya Peninsula and in the surrounding areas of the Guanacaste and Tilarán mountain ranges. Maximum amounts estimated between 25-50 mm

Warning: Special attention should be paid to the Caribbean and Northern regions because the rains of the last few hours keep the soils with high levels of saturation and this increases the vulnerability of the area.

Due to the above, the IMN recommends:

Caution due to sewer saturation in places prone to this type of flooding.
Prevention in the event of an electrical storm and seeking shelter in a safe place in the event of strong gusts of wind occurring or perceived 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 media: Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEBSITE: www.imn.ac.cr

Roberto Vindas

Meteorologist

DMSA-IMN



Weather warnings history

In this section you will find the weather warnings history.

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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May

01

Aviso Meteorológico

Actividad lluviosa en esta tarde y noche

01 de mayo de 2025
10.00 am

Diagnóstico: La Zona de Convergencia Intertropical se encuentra activa sobre el país. Esto favorece un panorama húmedo e inestable, idóneo para la presencia de nubosidad y la ocurrencia de...

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