Maps from the National Weather Service (NWS) show a sprawling winter storm system taking shape across the western United States, with alerts stretching across more than a dozen states as forecasters ...

It may have been mostly cloudy in Portland, but on Tuesday night, people here, nearby and all across the United States got a chance to see the northern lights due to a strong geomagnetic storm. Did ...

A forecast map from the National Weather Service (NWS) shows which states can expect the coldest conditions, with a fresh arctic blast expected this weekend. “Another shot of arctic air is on the way ...