Autumn begins to be visible as the tropospheric circulation changes and the polar masses move towards the United States and Mexico during September. Now, the cold front number 1 will affect several regions of the Republic of Mexico this week.
Between the morning and afternoon of Tuesday 21 would be entering the cold front # 1 of Chihuahua and Coahuila, moving between Nuevo Leon – Tamaulipas in the course of Wednesday to reach that same night northern Veracruz, where begin to move slowly and probability of park since Thursday in the southern part of that state. As it passes, it would favor heavy rains and storms with some hailstorms and wind gusts> 50 km / h , generating specific accumulations of 50 mm or higher.
The polar air mass, although it is relatively weak, will have enough intensity to reduce the thermal values in the north, northeast, east, and center of the country, generating less hot or temperate afternoons of 20-30 ° C and cool sunrises in general ( 10-19 ° C), highlighting areas of the Altiplano and mountains with values below 10 ° C without ruling out some frosts in the higher parts.
The first NORTE will also run for a long time on the coasts of Tamaulipas, Veracruz and the Isthmus of Tehuantepec with gusts of 60-85 km / h or higher.
Analyzing some atmospheric indicators, in fact it can be intuited that this winter 2021-2022 could be colder than normal, but ensuring an intensity and specific areas with effects is impossible. For the second consecutive winter we could have the cold phase of the ENSO , La Niña , with a moderate to strong intensity and that naturally cools the planet a few degrees.