The prevailing wind circulation from the northern sector leads to a significant thermal increase in large parts Argentina. This pattern will mainly affect the center and north of the country temperatures which are significantly above the usual values at the time. This thermal increase will be particularly noticeable in the provinces Buenos Aires, The pampas, Cordova And Santa Fethat registers thermal markings above 30 degrees.
The main reason for this situation is the combination of Northerly winds, reduced cloud cover and the persistence of a warm air mass which is installed on the area in question.
However, the phenomenon does not last forever. The same configuration that also promotes thermal rise will add a greater moisture load to the atmosphereThis makes it vulnerable to developing instability in the following days.
The most drastic moment in terms of temperature in City of Buenos Aires It will happen during the week Thursday. According to the National Meteorological Service (SMN)The thermometer is expected to reach the value 34 degrees in the afternoon, while the minimum will be 22 degrees in the early morning.
He Friday The heat will continue to be the trend, but the situation will no longer be as bad as the previous day. The maximum will be in 31 degreesand here too the minimum will be 22 degrees.
The situation would be different in the province of Buenos Aires: storms are expected in the Atlantic region and part of the central region on Thursday. There are yellow alert In Tres Arroyos, San Cayetano, Necochea, Lobería, Miramar, Mar del Plata, Coronel Vidal, Villa Gesell, Pinamar, Mar del Tuyú.
The same warning also applies offshore Balcarce, Chaves, Benito Juárez, Tandil, Azul, Ayacucho, Maipu and General Juan Madariaga.
He Strengthening of the north wind It does not limit its effects only to the increase in temperature. This process also promotes the transport of moist air from lower latitudes towards central and northern Argentina.
Initially, the occurring convective phenomena such as showers and isolated stormsthey are on time and not too extensive. However, the scenario suggests gradual intensification, coinciding with the advance of a cold front system from the south of the Pampas region, expected on Friday. It is this front that would directly interact with the existing warm and moist air mass and significantly change the meteorological scenario.
According to the SMN, the Saturday The first real chances of rain in CABA would begin. However, the chances are very small: they are between 10% and 40%. The heat will be present, but not so suffocating: maximum 28 degrees and at least 22.
He SundayAlthough skies will remain cloudy throughout the day, there is no risk of storms: the probabilities Do not exceed 10%. Temperatures remain high: maximum 29 degrees and the previous day’s minimum is repeated.
It’s been since Friday Cold front system will be fixed on the south of the Pampas area and will begin a process of activating rain, showers and storms. The onset of these events will be limited and discontinuous in time and space, but will serve as a warning for greater meteorological activity.
between the Saturday and Sundaythe system will expand its sphere of influence and move towards Center and north of the national territory. The combination between the advance of cold air and the warm, humid air previously brought into play represents a breeding ground for storms of varying intensity in several sectors: in the Pampas region, Whose, the coastHe NEA and sectors of NOA.
Particular attention is paid to the Northeast Argentinais considered the sector with the greatest potential impact due to high rainfall forecasts.
In this sense, provinces are like Chaco, Corrientes, Formosa, Misiones and North Santa Fe Specific accumulations could be observed above the 100 millimeters. This situation requires detailed monitoring of the development of the event, taking into account the risk of complications associated with heavy rainfall.
The completion of the advance of the cold front system will occur between Sunday and Monday There is a significant change in the atmospheric circulation. The wind shifts towards the south, favoring the arrival of colder and drier air masses over much of the country. The exchange of air therefore means a significant drop in temperature and a gradual stabilization of conditions after the passage of the cold front.
About The Author
