Weather warnings

Jul

19

Weather Warning (Update)

Tropical wave #20 moves over Costa Rica

July 19, 2024
3:30 p.m.

Diagnosis: The arrival of tropical wave #20 has generated unstable atmospheric conditions over Costa Rica, favoring partial to total cloudiness this afternoon, as well as thunderstorms and...

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Jul

19

Weather Warning

Tropical wave #20 moves over Costa Rica

July 19, 2024
10.20 a.m.

Discussion: The entry of tropical wave #20 has generated unstable atmospheric conditions over Costa Rica, favoring partial to total cloudiness this morning and early morning, as well as rain in...

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Jul

19

Aviso Meteorológico

Lluvias de variable intensidad en el país por el paso de la Onda Tropical #20

19 de julio de 2024
03:30 am

Diagnóstico: El paso de la onda tropical #20 junto con la Zona de Convergencia Intertropical favorecen la inestabilidad atmosférica y las precipitaciones durante la madrugada en el país. En...

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Jul

18

Meteorological Warning

Rains of variable intensity during this Thursday and Tropical Wave #20 for this Friday

July 18, 2024
5:00 pm

Diagnosis: The Intertropical Convergence Zone positioned over Costa Rica, in conjunction with local factors and a high content of precipitable water in the atmosphere, has favored showers with...

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Jul

18

Weather Warning

Rains of varying intensity during this Thursday

July 18, 2024
10:10 a.m.

Diagnosis: The Intertropical Convergence Zone is positioned over Costa Rica. This system, together with local factors and a high content of precipitable water in the atmosphere, will favor the...

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Weather warnings history

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Aviso Meteorológico-IMN-090624-11.20am

Jun

09

Weather Warning

Tropical wave #7 will cause rains of varying intensity this afternoon and evening

June 09, 2024
11.20 a.m.

Discussion: Tropical wave #7 has entered our country. The passage of this system and its interaction with the Intertropical Convergence Zone are causing a very unstable atmospheric pattern and, together with local factors such as warm morning temperatures and the entry of sea breezes, will lead to ideal conditions for the occurrence of rains of varying intensity in the different regions of the country in the afternoon and evening of today.

Forecast: Heavy rain and downpours with thunderstorms are expected this afternoon, which will begin in mountainous areas and gradually spread to the lower parts of regions such as the Northern Zone, Northern Pacific, Caribbean mountains and Central Valley (most significant in the North and East). Accumulations of between 30-70 mm are estimated in 6-hour periods, with higher amounts possible in a localized manner. Meanwhile, in the Central and South Pacific, rains of varying intensity with thunderstorms are expected, amounts between 20 - 50 mm and punctual maximums of 60 - 80 mm, in 6-hour periods.

The rainy activity will extend to the night period in the Northern Zone and Pacific regions, gradually decreasing in intensity and distribution. In the Central Valley and Caribbean mountains, light rains and fog banks are expected.

Warning: The rains projected for urban areas may again be precursors to flooding and sewer saturation in already recurring sectors. Saturated soils are recorded in the province of Cartago, the Sarapiquí Basin and the entire North Zone, as well as in the North and South Pacific, making these regions vulnerable to landslides and possible flooding.

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