A severe storm system, stretching from Texas to New York, caused flooding and tornadoes in Mississippi, Alabama, and Tennessee, and downed power lines in Minnesota and South Dakota with ice and heavy snow.
Mississippi tornado plowed through Hattiesburg, and the University of Southern Mississippi, causing widespread damage and more than a dozen injuries. A single tornado traced a path of destruction through at least two counties.
A snow storm caused flights across the country to be cancelled. Three died, and many were injured in dangerous highway conditions and as trees fell on homes. In the South, tornadoes left 100,000 without power on Christmas Day.
Tropical Storm Isaac is predicted to become a Category 2 hurricane by Wednesday, but it is much weaker than Katrina's damaging category 5 status. Still states of emergency were in place throughout much of the Gulf Coast region Monday.
District Judge Daniel P. Jordan III extended his order blocking a Mississippi state law that would shut down Mississippi's only abortion clinic. No word yet on when a final ruling from the judge will come.
A new law in Mississippi restricting abortion providers could force the state's only clinic to close. Critics say the law would force women to travel to other states to obtain a constitutionally protected procedure