“La Niña” arrived, and with their antics the atmospheric patterns will gradually begin to change in the Yucatan peninsula.
According to Juan Antonio Palma Solís, coordinator of Meteored México, among the main effects that they would affect Yucatán, Campeche and Quintana Roo they would be mainly in the increase of the arrival of cold fronts to the region.
The arrival of the “La Niña” phenomenon is officially declared.
It could increase the influence of cold fronts on the peninsular region. pic.twitter.com/M2kyQNwxFn
– Yucatan Meteorology (@ClimaYucatan) October 14, 2021
What is “La Niña”?
“La Niña,” the meteorologist recalled, is a climatic phenomenon that produces a large-scale cooling of ocean surface temperature in the central and eastern parts of the equatorial Pacific.
In addition, there are other changes in tropical atmospheric circulation, as in the winds, the pressure and the precipitations.
You can read: “La Niña” phenomenon: what is it and why is it alert?
Official “welcome” to “La Niña”
Palma Solís reported that the Climate Prediction Center from the United States Office of the National Oceanic and Atmospheric Administration officially declared the arrival of the “La Niña” phenomenon.
“The announcement was made because a negative anomaly was found, that is, colder than normal in the waters of the equatorial Pacific, “he explained.
In contrast, he added, when temperatures are warmer than normal in that ocean, the formation of “El Niño” is declared.
🔵 TAKE NOTE🔵
The Center for Climate Predictions of the @NOAA reported today that La Niña conditions have developed, which is expected to continue with a probability of 87% until February or March 2022.
ATTENTIVE with its effects in DR.
Follow ⬇️ pic.twitter.com/dukpTUxOP4
— Jean Suriel (@JeanSuriel) October 14, 2021
How would “La Niña” impact Yucatán?
With the appearance of “La Niña”, said the expert, gradually changes in the planetary atmospheric patterns would begin to manifest themselves, which in the end also would be reflected in the Yucatan peninsula.
“It would be approximately by the end of this 2021 or the beginning of 2022 when they manifest more clearly the effects of “La Niña” in the peninsular area, in which the ocean-atmosphere coupling is generated, “he said.
Another of the most relevant influences that “La Niña” has, he highlighted, is that would lead to an increase in the formation of tropical cyclones over the Atlantic Ocean, which presumes the 2021 season to be longer or more active.
“However, because the influence of “La Niña” would be gradual, and there is a month and a half before the end of the current tropical cyclone season, a slight influence on the formation of these systems is expected, “he judged.
It may interest you: Parade of tropical waves heading to the Yucatan peninsula
“La Niña” would accompany the Yucatecan winter
Thus, Palma Solís stressed, from the end of the year or early 2022 the influence of “La Niña” on atmospheric circulation patterns in the region will be more evident, and it would have an impact on winter behavior.
“Usually with” La Niña “ winters are wetter and sometimes colder in the Yucatan peninsula. There would be more cold fronts than predicted, about 17, three less than the annual average. “
“Even so, it could not be considered that with an increase in the frequency of cold fronts it would be a harsh winter. We will have to wait to see how the atmosphere will react, “concluded Juan Antonio.