Wintertime thunder is louder because of how sound travels, which depends on temperature and air density. 3News Meteorologist ...

According to the Severe Weather Europe website—an online resource of global weather forecasts—a mass of cold air, spurred by the polar vortex, has been forecast to move over Canada and the northern ...

California is once again reeling from the aftermath of a fast-moving storm that forced evacuation, rescues and even a rare tornado. NBC News’ Steve Patterson reports on the storm system that is now ...