TeleSur – Mexico’s northern states of Sonora and Chihuahua are bracing for more rough weather. At least 63 municipalities in Mexico’s northern Sonora state have declared a state of emergency amid fierce storms and unusually cold weather as of Monday.
http://www.telesurtv.net/english/news/Mexicos-North-Hit-by-Freezing-Weather-20151228-0004.html