Mexico is entering a period of significant meteorological volatility as two cold fronts and a persistent heatwave collide. This atmospheric clash is expected to bring a series of showers and intense temperatures across much of the country from Sunday, April 19, through Thursday, April 23.
The Arrival of Dual Cold Fronts
According to the National Meteorological Service (SMN), Cold Front 45 is currently stationary over the northern, northeastern and eastern regions of the country. While its direct influence is expected to end by Monday, it has already triggered rainfall of varying intensity across a large portion of the national territory.
The weather instability is likely to persist as a latest cold front is projected to enter via the northwest on Tuesday. This second system will maintain the probability of precipitation, particularly in 13 states identified as high-risk areas for the strongest rains.
These states include Tamaulipas, Hidalgo, Puebla, Veracruz, Michoacán, Guanajuato, Estado de México, Guerrero, Morelos, Mexico City, Tlaxcala, Oaxaca, and Chiapas.
Daily Rainfall Projections
The heaviest rainfall, ranging from 50 to 75 mm, is expected on Sunday in Tamaulipas, Hidalgo, Puebla, and Veracruz. By Monday, this intensity could shift toward Michoacán, Guanajuato, and the State of Mexico.
From Tuesday through Thursday, strong rains between 25 and 50 mm may continue to impact central and southern regions, including Puebla, Guerrero, Oaxaca, and Chiapas. Meanwhile, other states such as Chihuahua, Coahuila, and Nuevo León may see lighter intervals of showers or isolated rain.
Concurrent Heatwave and Temperature Shifts
Despite the arrival of cold fronts, a circulation of anticyclonic levels in the mid-atmosphere is maintaining a heatwave over several regions. This system is expected to generate temperatures between 40 and 45 degrees Celsius in at least 11 states over five days.
The states facing these extreme highs include Durango, Sinaloa, Guerrero, Nayarit, Chiapas, Morelos, Oaxaca, Michoacán, Nuevo León, Tamaulipas, and San Luis Potosí. Most of the rest of the country is expected to remain between 30 and 40 degrees.
The interaction between these systems means that while some regions struggle with heavy precipitation, others could face extreme heat. This duality highlights the complex atmospheric conditions currently governing the region.
Frequently Asked Questions
When will the period of rain conclude?
The current forecast indicates that the showers and rains will conclude on Thursday, April 23.
Which states are expected to experience the highest temperatures?
Temperatures between 40 and 45 degrees are expected in Durango, Sinaloa, Guerrero, Nayarit, Chiapas, Morelos, Oaxaca, Michoacán, Nuevo León, Tamaulipas, and San Luis Potosí.
What is causing the heatwave despite the cold fronts?
The heatwave is being maintained by an anticyclonic circulation in the middle levels of the atmosphere.
How are you preparing your home and schedule for these sudden shifts between rain and extreme heat?
