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Aviso Meteorológico-IMN-120921-0500pm



Weather Warning

Tropical wave # 34 causes heavy rain this afternoon

September 12, 2021
5.00 p.m.

Discussion. Tropical wave # 34 transits the national territory generating instability in its path and together with the morning warming and the entry of sea breezes this afternoon have caused heavy rains and downpours with an electrical storm in the mountains of the Caribbean, the North Zone, also in the Central Valley and in an isolated way in the Pacific, with maximum precipitation so far of 50 mm in the last 5 hours.

Forecast: For the remainder of the afternoon, moderate to heavy rains and downpours are expected with a thunderstorm in the Central Valley North Zone, as well as in the North and South Pacific, estimated accumulated between 20-50 mm.

During the night rains are expected, the strongest in coastal areas of the Pacific and Northern Zone, with amounts between 30-60 mm, possibly accumulated locally. On the other hand, in the Central Valley the rains tend to diminish gradually in the first part of the night period, in addition, banks of fog are possible in the Central Valley, precipitation ranges between 10-30 mm.

Warning: High levels of soil saturation remain in the North Pacific and South Pacific regions; also on the coasts of the Central Pacific and the North Zone, where the rapid increase in river flow could occur. Caution in the high parts before the imminence of landslides.

Due to the above, the IMN recommends:

  • Caution for sewer saturation and possible flash floods in the North Zone, as well as in the Pacific, Central Valley.
  • Prevention against thunderstorms 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.
  • Stay informed through social networks, Twitter: @IMNCR, Facebook: Instituto Meteorológico Nacional CR and the WEB Page: www.imn.ac.cr

Rebeca Morera R