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Aviso Meteorológico-IMN-210524-0910 a.m.

May

21

Weather Warning

Rainy activity this Tuesday in the country

May 21, 2024
9.20 am

Diagnosis: Tropical wave #3 at this time is located between the Pacific Ocean and Guanacaste, moving westward, leaving extensive instability in the Intertropical Convergence Zone, which in turn remains very active between Costa Rica and Panama.

Forecast: This morning there will be rains of varying intensity in the Caribbean and Northern Zone, as well as in the Central Volcanic Mountains and east/north of the GAM. The estimated accumulations for these regions will be between 5 – 30 mm with local maximums of 40 mm.

This afternoon, the presence of heavy rains/downpours with storms is forecast over the Central and South Pacific, Central Valley, North Pacific, mountainous sectors of the Northern Zone and surrounding areas. The accumulated amounts for these regions will be between 40 - 70 mm with maximums between 70 - 100 mm; larger amounts are not ruled out from time to time.

At night we expect strong rainy activity to still remain on the coasts and adjacent maritime sector of the Pacific, from the south of Nicoya to Osa. The estimated accumulations for these regions will be between 10 – 40 mm with local maximums of 50 mm.

Warning: Attention in the Talamanca sector, General Valley, South Pacific border and the mountains of the Northern Caribbean, Northern Zone in the Sarapiquí sector, central sector of the Nicoya peninsula and Central Valley in general, 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

Gabriela Chinchilla R.

DMSA-IMN



Weather warnings history

In this section you will find the weather warnings history.

May

28

Weather Warning (Update)

Tropical Wave #3 over Costa Rica this Wednesday

May 25, 2025
6.15 pm

Forecast: Tropical Wave 3 is crossing Costa Rica this Wednesday, increasing instability in its wake. In recent hours, heavy downpours have been recorded on the Pacific coast. This is more...

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May

28

Weather Warning

Tropical Wave #3 over Costa Rica this Wednesday

May 28, 2025
10:00 a.m.

Diagnosis: Tropical wave #3 will cross Costa Rica during the course of Wednesday, increasing the atmospheric instability over the country and reinforcing rainfall for this afternoon and evening. ...

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May

27

Weather Warning

Tropical Wave 3 will move over Costa Rica this Wednesday

May 27, 2025
07.00 p.m.

Discussion: Tropical Wave 3 is moving over eastern Panama. This system will continue its westward movement, entering Costa Rica on Wednesday. This, along with local factors such as morning...

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May

26

Weather Warning (Update)

Variable rainfall in recurring areas.

May 26, 2025
6:05 p.m.

Diagnosis: The Intertropical Convergence Zone is located over Costa Rica and Panama, bringing moisture from both sides. Along with the presence of trade winds in the central Caribbean Sea and...

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May

26

Weather Warning

Variable rains this afternoon in frequent sectors

May 26, 2025
10:00 a.m.

Diagnosis: The Intertropical Convergence Zone is located over Costa Rica and Panama, bringing moisture from both sides. The presence of trade winds in the central Caribbean Sea and local factors...

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May

25

Aviso Meteorológico (Actualización)

Zona de convergencia intertropical activa sobre Costa Rica -ACTUALIZACIÓN--

25 de mayo de 2025
6:00 p.m.

Diagnóstico: La Zona de Convergencia Intertropical se encuentra activa y sobre Costa Rica este domingo, generando con esto inestabilidad atmosférica sobre en el país. Desde la mañana, se han...

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May

25

Aviso Meteorológico

Zona de convergencia intertropical activa sobre Costa Rica

25 de mayo de 2025
12 m.

Diagnóstico: La Zona de Convergencia Intertropical se encuentra activa y sobre Costa Rica este domingo, generando con esto inestabilidad atmosférica sobre en el país y por esto, predomina el...

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May

24

Aviso Meteorológico

Precipitaciones este sábado en ambas costas del territorio nacional

24 de mayo de 2025
10:30 am

Diagnóstico: El ambiente húmedo en el que se encuentra el país junto a la instabilidad que genera la cercanía de la Zona de Convergencia sobre Costa Rica, facilita presenten lluvias desde la...

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May

23

Weather Warning (Update)

Rain and thunderstorms expected this Friday

May 23, 2025
5:00 p.m.

Diagnosis: An increase in ambient humidity, coupled with the proximity of the Convergence Zone and local factors, have favored the presence of heavy downpours with thunderstorms in several parts...

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May

23

Weather Warning

Rain and thunderstorms expected this Friday

May 23, 2025
10.00 a.m.

Discussion: An increase in ambient humidity, along with the proximity of the Convergence Zone and local factors such as breeze entry and morning warming, will facilitate cloudiness and...

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