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-080624-0535pm

Jun

08

Weather Warning (Update)

Precipitation extends to Saturday night and tropical wave #7 for this Sunday

June 08, 2024
05.35 p.m.

Discussion: Extremely unstable atmospheric conditions continue over Costa Rica and surrounding areas due to the combination of different elements, the active and nearby Intertropical Convergence Zone, systems in the upper atmosphere, the frequent passage of tropical waves and local factors. This afternoon, intense rainfall and thunderstorms have been recorded in different parts of the country with accumulations in El Guarco de Cartago of 68 mm, Guayabo de Turrialba 75 mm, San Pedro de Montes de Oca 43 mm, Heredia 41 mm, 83 mm in Guayabo de Bagaces, 94 mm in Hojancha, among others.

Forecast: Late afternoon and into the evening, light to moderate rains will continue, as well as fog banks in the Central Valley, amounts between 20-40 mm in 6-hour periods. For the North Zone, North Pacific and mountains of the North Caribbean, moderate to heavy rains and downpours with thunderstorms are expected, with accumulated amounts between 30-60 mm, with possible higher amounts at certain times. In the Central and South Pacific, as well as in high parts of the South Caribbean, occasional rains with possible thunderstorms are expected, with estimated ranges between 10 mm and 45 mm.

Tropical wave #7 and its interaction with the Intertropical Convergence Zone will be reinforcing the rainfall in the country during this Sunday, with the greatest intensity in the afternoon and early evening in the Pacific, Central Valley and North Zone regions.

Warning: The rains projected for urban areas may once again be the precursors of flooding and sewer saturation in already recurring areas. Saturated soils are recorded in the mountains of the South Pacific, Valle del General, the North Zone and the mountains of the Northern Caribbean, which makes these regions vulnerable to landslides and possible flooding.Warning: The rains projected for urban areas may once again be precursors to flooding and sewer saturation in already recurring areas. Saturated soils are recorded in the mountains of the South Pacific, Valle del General, the North Zone and the mountains of the Northern Caribbean, which is why these are regions vulnerable to landslides and possible flooding.

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

Rebeca Morera R
Meteorologist/DMSA-IMN