It could be the fourth significant tornado volley this month.
Another Southern U.S. snowstorm and extreme Brazil heat.
The southern U.S. is on flood watch from the Gulf Coast to California.
Temperatures are very cold north and quite toasty south.
Flooding may develop in the South and across Southern California this week.
Active storm track set to continue.
Storm train in the USA and a big Icelandic gale.
The Lower 48 is living through a tale of two seasons.
Plus, the sun is looking very spotted.
Punxsutawney Phill saw his shadow so the first of our next six weeks of winter is here.
Storm that hammered Hawaii heads toward the mainland.
The moisture-packed system passes north of the islands in coming days.
