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Aviso Meteorológico -IMN-011022-1045am



Weather Warning

Tropical wave transits this Saturday in the country

October 1, 2022
10.45 a.m.

Discussion: Tropical wave #38 has entered Costa Rica this morning; which, together with the proximity of the Intertropical Convergence Zone near the country and instability in the high atmosphere, generate ideal conditions for the presence of strong rainy activity during this afternoon and part of the night in the different regions of the national territory.

Forecast: During this afternoon, rains of variable intensity and an isolated electrical storm are expected, starting in mountainous sectors of the Central Valley, Central and South Pacific, and then they will spread to the lower parts of said regions. In the second part of the afternoon, rainy activity will also be present in the North Pacific, North Zone and western Caribbean. Amounts between 30-70 mm and possibly higher accumulated in a localized manner are estimated.

At night, the rains will remain in the Pacific regions -especially in coastal areas-, the North Zone, as well as in the western and southern sectors of the Central Valley, accumulated between 40-60 mm. In addition, fog banks are possible in the mountain ranges and surroundings.

Warning: High levels of soil saturation continue throughout the North Pacific, west of the Central Valley, North Zone (especially in sectors adjacent to the mountains; also in the Central and South Pacific, so they are extremely vulnerable sectors. It is recommended caution against possible incidents due to landslides or floods on Route 1, 2 and Route 27.

Due to the above, the IMN recommends:

  • Caution for sewage saturation and possible flash floods.
  • Prevention before an electrical storm and seek shelter in a safe place in case of strong gusts of wind appearing or being perceived near storm clouds, due to the possible fall of tree branches, power lines, among others.
  • Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute CR and the WEB page:

Rebeca Morera R