QCOSTARICA — Extreme rains is the forecast for Costa Rica for the last week of October and the first days of November. According to the national weather service, the Instituto Meteorológico Nacional (IMN), in some regions of the country it will rain as much as in an entire month.
“Extreme rain conditions above normal in the Pacific, Central Valley and mountains of the Caribbean for most of the week,” said the IMN.
On the Pacific side where amounts of up to 250 mm are estimated.
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To get an idea of the amount of rain, for example, it was the amount that fell during the entire month of August in the Central Valley and in the month of April in the South Pacific.
There is also a 60% probability that an extreme event will occur.
“During the week of October 28 to November 4, there is a high probability of the development of tropical cyclones in the Caribbean Sea, north of Colombia,” said the IMN.
The cause?
According to Karina Hernández, from the IMN Climatology Unit, it is due to several factors, but mainly due to the passage of two tropical waves.
“We expect that by the weekend we will have the impact of tropical wave No. 42, which will increase the rains,” said Hernández.
“In addition, there is a tropical wave, No. 43, which has not yet entered the Caribbean Sea, but it seems that it is very well organized, that is, it can become a tropical storm or cyclone, causing some damage,” explained the specialist.
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Also, there is a probability that the Intertropical Convergence Zone will be activated near the Pacific, generating very rainy conditions throughout the Pacific and Central Valley.
Taking into account that there is a high saturation of soils, due to the rains of the last few weeks, the population that lives in areas prone to flooding and landslides is asked to be very attentive to changes in conditions.
The forecast for the coming weeks:
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In the upcoming weeks of November, there is anticipation that precipitation levels will gradually decrease in certain areas.
- November 4 and 10: This week, rainy conditions will continue in the Pacific, but with less intensity than the previous week.
It is expected to be rainier than normal in the North and Central Pacific. In the Central Valley and the Northern Zone, there will be normal conditions for the season and on the Caribbean coast there will also be less rain than normal.
Accumulations are estimated between 50-80 mm per week in the Caribbean and greater than 120 mm in the Pacific.
- November 11 and 17: According to the forecasts, normal rainfall will continue this week throughout the Caribbean and the Northern Zone.
In the Pacific, there will be slightly above-normal rainfall. They are estimated at 100 mm per week and between 20-60 mm per week in the Caribbean.
- November 18 and 24: On the other hand, the dry season will begin to establish itself in the North Pacific and Central Valley this week, although it is expected to be gradual.
Normal rainfall will continue throughout the Caribbean and Northern Zone, with accumulated rainfall between 20-60 mm per week in the Caribbean and greater than 120 mm in the Pacific.
While in the Central and North Pacific normal rainfall will occur, with more than 80-100 mm.
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