Weather Warning

Downpours due to the Intertropical Convergence Zone

Septiembre 20, 2023

10:30 am

Meteorological Warning

Downpours due to the Intertropical Convergence Zone

September 20, 2023

10:30 a.m.

Diagnosis: A high humidity content and diurnal warming in conjunction with the position of the Intertropical Convergence Zone generates unstable conditions over the national territory. During the morning there were mostly cloudy skies for the Northern Zone, partially cloudy for the Northern Caribbean and little cloudiness for the rest of the country.

Forecast: In the afternoon there will be isolated showers with a possible electrical storm along the mountainous sectors of the country and lower altitude regions of the North Pacific, Northern Zone and Central Valley. This is due to the proximity of the Intertropical Convergence Zone.

The Central Valley could present rain of variable intensity during the afternoon and early evening, with accumulations between 25-70 mm and possible maximums located in the Central Mountain Range.

The Northern Caribbean and Northern Zone will present isolated showers and a possible electrical storm in mountainous sectors. The amounts could remain between 20-60 mm with possible localized higher amounts.

Showers and a possible electrical storm are expected for the Pacific. The North Pacific will present accumulated amounts between 20-50 mm with possible localized amounts of 55-65 mm. In addition, the Central and South Pacific will present focused rains in the mountainous sectors with amounts between 15-40 mm with localized maximums of 50-60 mm.

Warning: Special attention to mountainous sectors of the North Zone due to saturated soil conditions, which increases the probability of sizes, as well as to western, northern and mountainous sectors of the Central Valley due to possible flooding in the area.

Due to the above, the IMN recommends:

• Caution due to sewage saturation in places prone to this type of flooding.
• Prevention against electrical storms and look for a safe place in case strong gusts of wind occur or are perceived near storm clouds, due to the possible fall of tree branches, power lines, among others. These gusts can reach between 80 to 100km/h in some isolated cases.
• Stay informed through social networks, Twitter: @IMNCR, Facebook: National Meteorological Institute CR and the WEB Page: www.imn.ac.cr

Paulo Solano

Meteorologist

DMSA-IMN

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