A forecast map from the National Weather Service ... below-average temperatures, with a strong cold front ushering in "a dangerously cold Arctic air mass east of the Rockies." ...

It's as if someone opened the door to the refrigerator that is the North Pole and let all the cold air drain away ... on the temperature front, with periodic Arctic air mass intrusions sliding ...

San Antonio - Arctic cold front is now in Texas and will be surging ... Given the magnitude of cold coming in, this will certainly be protect pipes cold too. Insulate vulnerable pipes, outdoor ...