« Back

Aviso Meteorológico-IMN-100921-1000am



Weather Warning

Unstable atmospheric conditions continue this Friday over Costa Rica

September 10, 2021
10.00 a.m.

Diagnosis: The very active Intertropical Convergence Zone persists and over Costa Rica, causing a lot of atmospheric instability and a constant entry of humidity from both maritime sectors to the national territory. During the early morning there were heavy rains in the North Pacific, registering around 60mm and 70mm in the canton of Santa Cruz and its surroundings.

Forecast: For this afternoon, the most intense rains will again be concentrated in the regions of the Pacific Slope - near the mountainous sectors - and in the North Zone; Isolated downpours with a thunderstorm are expected with amounts of 25mm and 50mm with maximums between 60mm and 70mm. In the Central Valley and mountainous sectors of the North Caribbean, amounts between 15mm and 30mm are expected with maximums of 40mm during this period.

At night, scattered but intense downpours will continue in a timely manner near the Pacific coast, with estimated amounts between 30mm and 50mm with maximums of 60mm and 70mm around both the Gulf of Nicoya and the Golfo Dulce.

The analyzes indicate that in the next 2 days there will continue to be very strong rainy episodes, which can generate accumulated over 100 mm in a specific way, being in regions of the Pacific where the probability is higher.

Warning: Due to recent rains, high soil saturation levels are maintained in the North Pacific and South Pacific regions; in addition to the Central Pacific coast - near Parrita and Herradura - west of the North Zone and the canton of Sarapiquí, places where the rapid increase in river flow could occur. Caution in areas with a high propensity to landslides, such as the cantons of Desamparados, Aserrí, Ruta 32 and the vicinity of the Cordillera de Guanacaste.

Due to the above, the IMN recommends:

• Precaution 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 present 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: CR National Meteorological Institute and the WEB Page: www.imn.ac.cr

Juan Diego Naranjo Diaz