THESE ARE JUST BACKGROUND ENVIRONMENT WINDS UP NEAR ... AND EVENTUALLY WE SEE A TRANSITION INTO VERY HEAVY SNOW CAUSING BLIZZARD LIKE CONDITIONS, SAY MAYBE AROUND 6:00 FOR OMAHA WESTERN IOWA.

A sprawling, powerful March storm that's bringing the threat of tornadoes to the South is also spreading heavy snow and blizzard conditions to portions of the north-central U.S. on Tuesday and ...