Weather warnings

Jun

21

Weather Warning (Update)

Heavy downpours with a storm this afternoon and night

June 21, 2024
4:50 p.m.

Diagnosis: The predominance of high humidity and instability, as well as local factors, warm morning temperatures and the entry of sea breezes; add up on this Friday to the passage of tropical...

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Jun

21

Weather Warning

Heavy showers and thunderstorms this afternoon and evening

June 21, 2024.
10.25 a.m.

Discussion: High humidity and instability prevail over Costa Rica and its surroundings, as well as local factors, warm morning temperatures and the entry of sea breezes; the passage of tropical...

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Jun

20

Weather Warning (Update)

Heavy showers continue during the early hours of the night

June 20, 2024
5 p.m.

Discussion: Unstable conditions continue today in Costa Rica, different factors favor this pattern among them: high humidity content, the entry of sea breezes, high temperatures and areas of...

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Jun

20

Aviso Meteorológico

Aguaceros fuertes esta tarde en varias zonas del país

20 de junio de 2024
10:00 am

Diagnóstico: Condiciones inestables están presentes en la atmósfera sobre el país, esto debido al alto contenido de humedad, el ingreso de brisas marinas, temperaturas altas y áreas de...

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Jun

19

Weather Warning (Update)

Rainy activity this afternoon

June 19, 2024
6:20 p.m.

Diagnosis: Costa Rica continues to experience significant moisture input from the Pacific Ocean during the early hours of the day, which, combined with daytime warming and unstable conditions...

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Weather warnings history

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Aviso Meteorológico-IMN-120624-1000am

Jun

12

Weather Warning

Tropical wave #8 moving over the country this Wednesday

June 12, 2024
10.00 a.m.

Discussion: Tropical wave #8 is over the national territory, this system and its interaction with the Intertropical Convergence Zone will cause favorable conditions for the generation of rainy activity of variable intensity in the different regions of the country during this afternoon and night.

Forecast: Precipitation will begin around noon, continuing during the afternoon and part of the night; it will start over the mountainous axis and will gradually extend towards the lower parts.

Heavy rain and downpours with thunderstorms are expected in the Northn Zone, North Pacific, and Caribbean mountains, with an estimated accumulation of 30-80 mm in 6-hour periods, and higher amounts are possible in a localized manner. In the Central Valley, as well as in the Central and South Pacific, rain of varying intensity with thunderstorms is expected, with amounts between 20-50 mm and punctual maximums of 60-80 mm, in 6-hour periods.

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

Warning: The rains projected for urban areas may once again be the precursors of flooding and sewer saturation in sectors that have already occurred. Saturated soils are recorded in the province of Cartago, cantons south of San José, the Sarapiquí Basin and the entire North Zone, as well as in the North and South Pacific, and mountains in the Central 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 in the event of an electrical storm and seeking shelter in a safe place in case of strong gusts of wind 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 networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB Page: www.imn.ac.cr

Rebeca Morera R
Meteorologist
DMSA-IMN