Numerous states had received winter weather-related alerts from the National Weather Service as of early Monday.

The NWS has issued warnings this weekend after a powerful polar vortex plunged temperatures nationwide during the week.

National Weather Service (NWS) winter storm warnings are in place across 12 states, in the north and north-east of the country, on Saturday with up to nine inches of snow forecast for some areas. The ...

National Weather Service meteorologists warned of temperatures cold enough to be fatal descending across most of the nation.