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-080924-1130am

Sep

08

Weather Warning

Rainy activity of variable intensity this afternoon and night

September 08, 2024
11.30 a.m.

Discussion: The Intertropical Convergence Zone remains active near the national territory, in addition to instability in the upper atmosphere; they create a very humid environment and ideal for the formation of cloudiness and the occurrence of rains of variable intensity during the afternoon and early evening.

Forecast: Rains of variable intensity and isolated showers with thunderstorms are expected during this afternoon and the first part of the night period, starting in the mountainous areas and progressively extending towards the lower areas of the Pacific, Northern Zone and Central Valley regions. For its part, in the Caribbean, the probability of precipitation will remain in the mountainous areas. Estimated accumulations between 40-80 mm, in periods of 6-12 hours, higher accumulations are possible in a localized manner. In addition, fog banks are possible at the beginning of the night in GAM and mountainous areas.

Warning: Soils remain highly saturated in the North Zone, South Pacific and Nicoya Peninsula, regions where rain will be frequent on this day; therefore, these areas are highly vulnerable. Also, 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 in the event of an electrical storm and seek 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

Rebeca Morera R
Meteorologist
DMSA-IMN