If the rain, snow and cold of these days has surprised you, Get ready for the rest of May, since according to the model of the European Center for Medium and Long Term Forecasts (ECMWF) the polar air masses They will extend to the north-central area of the country.
And to better understand the atmospheric scenarios that are projected for the coming weeks, we are going to start with the analysis of the meteorological variable precipitation.
Our reference model tells us that the passage of the frontal systems, with moderate to strong characteristics, they will continue moving over the central and southern areas of Chile, mainly from the Maule Region to the Los Ríos Region.
But, in all sectors of this geographic stretch are forecasts amounts of water fall above normal climatological values? The answer is no, since in the regions of Maule, Ñuble and Biobío the rains will tend to be more intense. in the foothills and mountain range of the Andes.
In this direction, it is imperative to take preventive actions sufficient to face the flooding of rivers, the removal of mass and the probability of alluvium when a new meteorological event approaches, as a front system.
In the regions of La Araucanía and Los Ríos, the amounts of water fall above normal climatological values are planned for all sectors, which could be reflected in the amount of snow that accumulates with the low atmospheric pressures that reach the country.
Another area of Chile that could Present abundant rainfall during May 2024 in the Andes mountain range (northern sector) of the Atacama Region.
Forecast for the first half of May in Chile: cold and rain do not stop so quickly throughout the country
In this sense, we must pay attention to the segregated discharges -or cold cores at altitude- that develop in the coming weeks and head towards regions of the northern zone, to prevent emergency situations such as activation of streams and alluvium caused by flooding of rivers.
The other path of precipitation indicates amounts of fallen water significantly under normal climatological values for the regions of Los Lagos, Aysén and Magallanes, an atmospheric scenario that supports the slogan that the frontal systems will arrive intense to the central-southern area of the country.
Freezing temperatures will visit these regions of the country during May 2024
Going back to the headline of this news, It is projected that the troughs at altitude -corresponding to 500 hectopascals or 5,500 meters above sea level- that accompany the frontal systems during the coming weeks, They extend to the north-central area of our country.
This atmospheric scenario translates into the feared meteorological frosts, which can occur in two ways: white frost and black frost.
The white frost They manifest as frost, while the black frost They generate blackish spots on the foliage of plants.
In an overview, This condition would extend from the Atacama Region (mountain range) to the Magallanes Region. However, meteorological frosts The most intense would be recorded between the Metropolitan and Biobío regions.
How could this type of meteorological information be applied? Generating preventive actions in the agriculture area to avoid crop loss.
Thermal inversion: the environmental factor that exacerbates pollution episodes
Also given the probability of environmental alerts due to poor air quality. Added the Health area, since polluted air and sudden changes in temperature cause an increase in visits to primary care services.
Finally, it is important to mention that from the Arica and Parinacota Region to the Antofagasta Region, temperatures are projected on normal climatological values, so it will be necessary to take into account heat events that occur in the area, either for the care of people or for future research.
