Weather Warning

Intertropical Convergence Zone active over the country this Sunday

November 03, 2024

12 md

Diagnosis: The Intertropical Convergence Zone remains very active over Costa Rica, causing rain since early Sunday in the Central and South Pacific, with accumulations of between 5 and 25 mm. In addition, the low pressure system continues to strengthen in the southwest of the Caribbean Sea, favoring the accumulation of humidity and instability towards the south of Central America. This low pressure is being monitored by the National Hurricane Center, giving it a 90% probability of reaching tropical depression status in 1 or 2 days as it moves toward Jamaica.

Forecast: This afternoon, incursions of humidity and cloud development will continue with the presence of rain and showers with thunderstorms in the Pacific (especially in the Central and South Pacific), Central Valley (east and south) and Northern Zone, as well as in the mountains and plains of the Caribbean with occasional incursions in the coastal zone. Accumulations in 24 hours remain high, this Sunday, between 50 - 80 mm with maximums between 90 - 150 mm. In addition, it is anticipated that the rainy day in the country will extend to the night period intermittently with greater intensity on the coast of the South Pacific and South Caribbean, however, recurrent rains are also possible in the Central Valley, mountains of the North Caribbean and North Zone. According to the latest analyses, the indirect influence of this low pressure will be present in the country at least until next Tuesday.

Warning: Given the instability created by the evolution of the low pressure system, numerical projections continue to indicate a very rainy scenario for the South Pacific, parts of the Central Pacific (mountainous and coastal), as well as coastal sectors of the west of the Nicoya Peninsula, mountainous South Caribbean, Central Valley and North Zone, this for Sunday and the first days of next week. In addition, saturated soils are present in most mountainous regions along with low-lying areas of the Pacific, South Caribbean and Northern Zone, so the possibility of incidents is high.

Due to the above, the IMN recommends: • Caution due to sewer saturation in places prone to this type of flooding. • Prevention against electrical storms and seek shelter in a safe place in case of strong gusts of wind near 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

Gabriela Chinchilla Meteorologist DMSA-IMN

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