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Aviso Meteorológico-IMN-090924-Aguaceros fuertes en el Pacífico este lunes

Sep

09

Meteorological Warning

Heavy rains in the Pacific this Monday

September 9, 2024
10:00 am

Diagnosis: Unstable conditions continue in the atmosphere around the country, due to the proximity of the Intertropical Convergence Zone and the high humidity content. This condition, together with local factors, will favor variable rain activity for this afternoon.

Forecast: For this afternoon and early evening, showers with strong thunderstorms are expected for the Pacific slope, particularly for the mountainous areas in the Central Pacific, around the border with Panama, around the Golfo Dulce in the South Pacific and around the Gulf of Nicoya, Tempisque Valley and mountain ranges in the North Pacific. Estimated amounts between 40-80 mm with possible higher amounts at certain times.

For the Central Valley, scattered showers with thunderstorms are expected mainly in the west and north, in the rest of the region, isolated showers are possible mainly in the highlands and their surroundings. Maximum amounts estimated between 20-60 mm.

In the Northern Zone, isolated heavy showers with thunderstorms are expected, starting in the mountainous areas in the early afternoon and then moving towards the lower areas in the late afternoon and early evening. Estimated amounts are between 30-70 mm with possible higher amounts at certain times.

In the Caribbean regions, showers with thunderstorms are expected in mountainous areas and surrounding areas (10-30 mm), while the coastal areas will continue to be predominantly cloudy with the possibility of occasional rains of lesser intensity (1-10 mm), especially towards the nighttime period.

Warning: Saturated soil conditions continue in the Central Valley, Pacific slope and mountainous areas of the Caribbean and the Northern Zone, due to heavy rains over the weekend. This situation indicates a significant risk of incidents due to sewer saturation, river flooding or landslides, so special caution is recommended.

Due to the above, the IMN recommends:

• Caution due to sewer saturation in places prone to this type of flooding.
• Prevention against electrical storms and seek shelter in a safe place in case of strong gusts of wind 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: Instituto Meteorológico Nacional CR and the WEB Page: www.imn.ac.cr
Roberto Vindas
Meteorologist
DMSA-IMN



Weather warnings history

In this section you will find the weather warnings history.

Jun

17

Aviso Meteorológico (Actualización)

Aviso Meteorológico-IMN-170625-Condiciones lluviosas en el Caribe y Zona Norte este martes (actualización)

17 de junio de 2025
5:30 pm

Diagnóstico: Condiciones inestables se mantienen sobre el territorio nacional, esto debido a la actividad de la Zona de Convergencia Intertropical y al ingreso de humedad desde el mar Caribe por...

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Jun

17

Aviso Meteorológico

Condiciones lluviosas en el Caribe y Zona Norte este martes

17 de junio de 2025
11.30 am

Diagnóstico: Luego del paso de la onda tropical #6 sobre Costa Rica ayer lunes, se mantiene la inestabilidad en el territorio nacional aunado a la cercanía de la Zona de Convergencia...

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Jun

16

Weather Warning (Update)

Tropical Wave #6 over Costa Rica

June 16, 2025
6:30 p.m.

Forecast: The passage of Tropical Wave No. 6 over Costa Rica, along with the proximity of the Intertropical Convergence Zone, presents a highly unstable environment for the country. Heavy rains...

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Jun

16

Weather Warning

Tropical Wave #6 over Costa Rica

16 de junio de 2025
10:00 a.m.

Diagnosis: The passage of tropical wave No. 6 over Costa Rica, together with the proximity of the Intertropical Convergence Zone, maintains a very unstable environment in the country, favorable for...

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Jun

16

Weather Warning

Unstable atmospheric pattern this morning

June 16, 2025
12:30 a.m.

Diagnosis: Atmospheric instability, associated with both the proximity of the Intertropical Convergence Zone and the presence of a low-pressure system in the Pacific Ocean, located off the coast...

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Jun

15

Weather Warning | Update

Rains of varying intensity in recurring sectors

June 15, 2025
5:35 p.m.

Diagnosis: The unstable pattern persists over the country, associated with the proximity of the Intertropical Convergence Zone, high temperatures, and the presence of a low-pressure system...

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Jun

15

Aviso Meteorológico

Lluvias de variable intensidad en sectores recurrentes

15 de junio de 2025
09:55 a.m.

Diagnóstico: Persiste el patrón inestable sobre el territorio nacional, asociado a la cercanía de la Zona de Convergencia Intertropical, las altas temperaturas y la presencia de un sistema de...

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Jun

14

Aviso Meteorológico

Persiste alta inestabilidad sobre el territorio nacional

14 de junio de 2025
9:30 a.m.

Diagnóstico: Continúa el patrón inestable sobre el territorio nacional, debido a varios factores. Tras el paso de la onda tropical número 5, la Zona de Convergencia Intertropical ha mostrado un...

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Jun

14

Aviso Meteorológico (Actualización)

Onda tropical #5 transitando por el país este viernes -Actualización-

14 de junio de 2025
12:25 a.m.

Diagnóstico: Condiciones atmosféricas inestables se presentaron durante este viernes en el país debido a factores como: la Onda Tropical #5 (OT#5) transitando sobre el territorio nacional y un...

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Jun

13

Weather Warning (Update)

Tropical Wave #5 over Costa Rica this Fraday

June 13, 2025
4:45 p.m.

Diagnosis: Unstable atmospheric conditions this Friday in the country are due to factors such as Tropical Wave #5 (OT#5) passing over the country today, a low-pressure system belonging to the...

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