A complex atmospheric battle is unfolding across the country, as a severe heatwave clashes with an incoming polar air mass. This weather volatility is expected to bring extreme temperature swings to multiple regions over the next several days.
Extreme Heat Across Seven States
According to the Servicio Meteorológico Nacional (SMN), an anticyclonic circulation in the mid-levels of the atmosphere is sustaining a significant heatwave. This system is generating temperatures between 40 and 45 degrees Celsius in at least seven entities.
The states most affected by these extreme highs include Durango, Sinaloa, Guerrero, Nayarit, Chiapas, Morelos, and Oaxaca. Whereas these areas face the most intense heat, a large portion of the country is expected to maintain temperatures between 30 and 40 degrees Celsius.
Daily Temperature Forecast
The heatwave’s intensity will shift across different regions. On Saturday, April 18, the 40 to 45 °C range is expected in central Sinaloa, as well as the south and southwest of Michoacán and northwest Guerrero.
By Monday, April 20, the extreme heat may expand to include northern Nayarit and the coast of Chiapas, alongside Durango, Sinaloa, and Guerrero. By Wednesday, April 22, southern Morelos and central Oaxaca could also reach these peak temperatures.
The Impact of Cold Front 45
In contrast to the heatwave, a polar air mass associated with Cold Front 45 is moving through the territory. This system is likely to lower temperatures in the north and northeast during the afternoon and night of Saturday.
By Sunday, this cooling effect may extend to the north, northeast, east, and center of the country. In addition to the temperature drop, wind gusts of 30 to 50 km/h are expected in Tabasco, Campeche, and Yucatán.
Upcoming Weather Transitions
The atmospheric conditions are expected to shift again between Monday, and Wednesday. As the polar air mass modifies its characteristics, it may favor an increase in temperatures across the north, center, and east.
Despite this warming trend, the northeast region is likely to maintain a cool to temperate environment during this period.
Frequently Asked Questions
Which states are expected to reach temperatures between 40 and 45 degrees?
The seven entities identified by the SMN are Durango, Sinaloa, Guerrero, Nayarit, Chiapas, Morelos, and Oaxaca.
What is causing the current heatwave?
The heatwave is being maintained by an anticyclonic circulation in the mid-levels of the atmosphere.
How will the polar air mass affect the country?
Cold Front 45 will cause a decrease in temperatures starting in the north and northeast, eventually reaching the east and center, while also generating high wind gusts in several coastal and northern regions.
How do you typically prepare for sudden and extreme shifts in local temperature?
