Weather warnings

Sep

13

Weather Warning

Tropical wave #31 passing over Costa Rica

September 13, 2024
9.30 a.m,.

Discussion: Tropical wave #31 is over the country this Friday. This system is generating an unstable and humid atmospheric pattern, which increases the presence of cloudiness and rain throughout...

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Sep

12

Weather Warning

Tropical Wave #31 to cross Costa Rica this Friday

September 12, 2024
12 m.

Diagnosis: Tropical wave #31 is over Panama this Thursday and will transit early Friday morning through Costa Rica, increasing atmospheric instability over the country and therefore, forecasts...

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Sep

11

Weather Warning (Update)

Tropical wave #30 moves over Costa Rica

September 11, 2024
3:30 p.m.

Diagnosis: Tropical wave #30 is passing over the country this Wednesday, generating humid and unstable atmospheric conditions. In addition, local factors such as morning warming and the entry of...

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Sep

11

Weather Warning

Tropical wave #30 passing over Costa Rica this Wednesday

September 11, 2024
10.30 a.m.

Discussion: Tropical wave #30 is passing over the country this Wednesday, generating humid and unstable atmospheric conditions. In addition, local factors such as morning warming and the entry of...

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Sep

10

Aviso Meteorológico

Aguaceros con tormenta esta tarde y OT#30 para mañana miércoles

10 de setiembre de 2024
8.40 am

Diagnóstico: Condiciones inestables se mantienen en la atmósfera en los alrededores del país, esto debido a la cercanía de la Zona de Convergencia Intertropical y al alto contenido de humedad...

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Weather warnings history

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Aviso Meteorológico-IMN-070924-1035am

Sep

07

Weather Warning

Heavy rains and thunderstorms during this afternoon and early evening

September 07, 2024
10.35 a.m.

Discussion: The Intertropical Convergence Zone maintains its activity close to the national territory, which has favored a very humid and unstable atmospheric pattern, generating cloudiness especially near the coasts and occasional rains this morning in sectors of the Osa Peninsula, Tortuguero, Santa Elena Peninsula, south of the Nicoya Peninsula, Upala, among others; with accumulations between 5-34 mm in the last 3 hours.

Forecast: Strong rain and thunderstorms are expected this afternoon and early evening. The regions most likely to experience these conditions are the Central Valley, the Northern Zone and the Pacific. Rain will begin in the mountainous areas and gradually spread to the lower areas. In the Caribbean, rain is not ruled out; however, it will be limited to the mountainous areas. Amounts between 30-70 mm are expected in 6-12 hour periods, with higher localized accumulations possible.

Warning: Saturation of elevated soils will continue in the North Zone, the Southern Pacific and the Nicoya Peninsula, where rain will be recurrent, so these areas are highly vulnerable. Likewise, the rains expected in urban areas may cause congestion in the sewer system and flash floods.

Due to the above, the IMN recommends:

  • Be careful 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

Rebeca Morera R
Meteorologist
DMSA-IMN