Source: United States & Canada – South China Morning PostDecember tornadoes are uncommon but not unheard of. The explosion of twisters across five Midwest and Southern states over the weekend? That might be unprecedented.The tornadoes that spun off a fast-moving storm Friday night and into Saturday morning probably killed at least 74 people in Kentucky alone, according to officials on Monday, and at least 14 in the four other states.A combination of the main tornado’s enormous path as it tore from Arkansas to Kentucky, its sheer power and the high…Read More