TODAY | January 08, 2014
>>> obviously the cold is our top story again today. the death toll from the weather has climbed to 21 people, 13 in illinois and indiana.
>> more than 11,000 flights have also been canceled nationwide in the past four days. and record lows have been set in at least 50 major cities, including a wide section of the south.
>> let's start this morning with nbc's dylan dreyer braving the cold once again in minneapolis. dylan , good morning to you.
>> reporter: good morning, matt. you know, we are here at mini ha ha falls, but just a mini ha ha . look at how they are completely frozen over. naturally just shut off. it's about 7 degrees below zero here in minneapolis, a little bit warmer than yesterday. but it is still seriously cold from the midwest to the northeast and even down into the south.
>> it's one more brutal morning.
>> it's crazy.
>> reporter: arctic temperatures taking their toll everywhere you look.
>> it's a big sheet of ice out there. everybody's slipping and sliding.
>> reporter: for drivers, black ice is a big issue. watch as a minnesota motorist loses control of her suv and plunges off a bridge. luckily, her injuries were not serious.
>> once you hit black ice , you're gone.
>> reporter: dangerous highway conditions are posing problems for truckers from indiana to upstate new york .
>> i wish i could see the front of my hood. any time you get the road across the road with this fine snow, cuts your visibility like that.
>> it's still a nightmare for many air travelers with thousands of cancellations nationwide.
>> wait and hope i get out of here.
>> reporter: this polar air shattered records in southern states not accustomed to the cold in georgia and florida, folks brought out their heavy jackets and scarves.
>> mother nature , that's the only one you can blame.
>> this photograph captures mother nature 's grip on the city of chicago . here's michigan, also frozen over. no matter the temperature, work goes on. neither rain, nor sleet, nor polar vortex can stop this mail carrier in buffalo.
>> i've never delivered in a storm like this.
>> reporter: we're all waiting to catch a break from mother nature . now, it is going to take a serious spring thaw to get these falls flowing again. but in the meantime. hey, we could get above freezing by the time we get to friday. natalie?
>> thanks so much, dylan .