The arrival of winter in Mexico signals the onset of winter weather disruptions, particularly from the impending presence of the Depresión Aislada en Niveles Altos (DANA). This phenomenon is expected to begin impacting the country starting December 18, with its effects intensifying significantly around Christmas Eve and Christmas Day, according to meteorologist José Martín Cortés from Meteored.
"The winter weather could establish itself across Mexico... areas with rain, wind, and cold will be recorded close to Christmas," remarked Cortés, underscoring the potential severity of this weather pattern. The meteorologist explained DANA as not being unusual during the winter months; instead, these events typically occur multiple times each season.
DANA occurs when cold air mass segments detach from the main atmospheric circulation, leading to abrupt weather changes at the surface. While these occurrences are common, Cortés notes they have become more intense recently due to climate change, causing significant drops in temperature coupled with strong winds and heavy rainfall.
This year, the DANA phenomenon is anticipated to bring about hazardous conditions primarily to the northern and western regions of Mexico. Significant rainfall, low temperatures, and heavy winds could affect states such as Sinaloa, Nayarit, Jalisco, Colima, and Michoacán, as well as regions including Guanajuato, San Luis Potosí, Tamaulipas, Nuevo León, Hidalgo, Estado de México, the Federal District, Tlaxcala, and Veracruz.
Although predictions are not yet definitive, recent forecasts indicate the likelihood of severe weather on Christmas. Cortés also mentioned, "While the uncertainty remains high, effects are foreseen... with some rain expected." The impending weather conditions can lead to more than just discomfort; they could trigger various public health concerns, especially respiratory illnesses.
Given the potential for harsh weather and related health concerns, local and federal authorities are urging the public to take preventive measures. The Secretary of Health has advised citizens to stay properly hydrated, consume warm beverages, and dress warmly. It’s also recommended to maintain distance from those showing signs of respiratory illness, vaccinate against seasonal ailments, and be cautious about open flames or heating sources.
This year, as families prepare to celebrate the holiday season, the forecasts suggest cooler to cold weather typical for much of the country, with added rain expected. This could lead to challenges for those planning festivities involving outdoor activities or gatherings.
The emphasis is placed not merely on the winter experience but also on the precautionary steps necessary to safeguard health during this period. The interaction of weather patterns influenced by climate change procedures now calls for greater community vigilance, ensuring families are prepared for potential weather-related disruptions.
So as Christmas approaches, the emergence of DANA is more than just another winter weather forecast; it serves as a timely reminder of how climate phenomena interact with our seasonal traditions. Residents are encouraged to stay informed, heed safety advice, and brace for what appears to be another wintry holiday season affected by climatic changes.