Crews snapped a photo of a rare weather phenomenon known as a "snow devil" on New Hampshire's Mount Washington.

The visual difference on the ground was stark: the asphalt with the special additive remained ice and snow free under conditions where an untreated road was completely covered. Credit: Research ...

Along with real-time traffic conditions and other potential safety issues, like road construction or a broken traffic light, snow conditions will now also come up in the app. For users ...