Millions battle brutal arctic blast and snow

IN SOME PLACES IT FELT LIKE 20 BELOW ZERO AND ANOTHER. FELT LIKE 20 BELOW ZERO AND ANOTHER MORE POWERFUL STORM. ZERO AND ANOTHER MORE POWERFUL STORM RIGHT BEHIND IT. MORE POWERFUL STORORM RIGHT BEHIND IT. ERIN McLAUGHLIN IS. ERIN McLAUGHLIN IS TRACKING IT FOR US. . >> Reporter: TRACKING IT FOR US. >> Reporter: TONIGHT EXTREME. >> Reporter: TONIGHT EXTREME WEATHER SPELLING. TONIGHT EXTREME WEATHER SPELLING EXTREME MISERY FOR. EXTREME MISERY FOR MILLIONS. >> I'M CONVINCED. MILLIONS. >> I'M CONVINCED THIS WEATHER IS NOT. >> I'M CONVINCED THIS WEATHER IS NOT MEANT FOR HUMAN. MEANT FOR HUMAN CONSUMPTION. >> Reporter: CONSUMPTION. >> Reporter: TEMPERATURES 15 TO. >> Reporter: TEMPERERATURES 15 TO 20 DEGREES BELOW. TEMPERATURES 15 TO 20 D DEGREES BELOW AVERAGE FROM THE. AVERAGE FROM THE MIDWEST TO THE NORTHEAST, EVEN A. MIDWEST TO THE NORTHEASAST, EVEN A COLD WARNING AS FAR. NORTHEAST, EVEN A COLD WARNING AS FAR SOUTH AS FLORIDA. COLD WARNING AS FAR SOUTH AS FLORIDA. >> E ON, YOU OH, YOU.

SOUTH AS FLORIDA. >> E ON, YOU OH, YOU GUYS. GUYS. >> Reporter: THIS WEEK LEADING TO ONE. >> Reporter: THIS WEEK LEADING TO ONE OF THE LARGEST. WEEK LEADING TO ONE OF THE LARGEST PILEUPS IN MICHIGAN. OF THE LARGEST PILEUPS IN MICHIGAN STATE HISTORY, PILEUPS IN MICHIGAN STATE HISTORY, SCHOOL BUS DEPLOYED. STATE HISTORY, SCHOOL BUS DEPLOYED TO RESCUE STRANDED. TO RESCUE STRANDED DRIVERS. EXPERTS WARN JUST. EXPERTS WARN JUST TEN MINUTES IN THESE BITTER COLD TETEMPS. TEN MINUTES IN THESE BITTER COLD TEMPS CAN LEAD TO. CAN LEAD TO FROSTBITE. >> OUR EMERGENCY. >> OUR EMERGENCY DEPARTMENTS ARE REALLY BUSUSY AND SO. DEPARTMENTS ARE REALLY BUSY AND SO THE COLD ONLY ADDS. REALLY BUSY AND SO THE COLD ONLY ADDS TO THAHAT STRAIN. THE COLD ONLY ADDS TO THAT STRAIN. >> Reporter: >> Reporter: MILWAUKEE'S CHIEF HEALTHTH POLICY. HEALTH POLICY ADVISER SAYS THE NUMBER OF PATITIENTS. NUMBER OF PATIENTS HAVE BEEN ON THE RISE FOR WEEEEKS. HAVE BEEN ON THE RISE FOR WEEKS BECAUSE OF THE FLU. RISE FOR WEEKS BECAUSE OF THE FLU. THISIS COLD IS NOW. BECAUSE OF THE FLU. THIS COLD IS NOW MAKING THINGS WOWORSE. THIS COLD ISIS NOW MAKING THINGS WORSE. >> A PERSON WHO CAME. MAKING THINGS WORSE. >> A PERSON WHO CAME ININ WITH AN ASTHMA.

IN WITH AN ASTHMA EXACERBATION, WE SAW SOMEBODY SHOVELING. EXACERBATION, WE SAW SOMEBODY SHOVELING SNOW AND G GOT CHEST. SNOW AND GOT CHEST PAIN. WE S SAW SOMEBODY WHO. PAIN. WE SAW SOMEBODY WHO REACHEHED INTO A. REACHED INTO A SNOWBLOWER TO TRY TO JAM OUT OR GET OUT. SNOWBLOWER TO TRY TO JAM OUT OR GET OUT THAT JAMMED SNOWOW. JAM OUT OROR GET OUT THAT JAMMED SNOW. >> Reporter: IN. THAT JAMMED SNOW. >> Reporter: IN PITTSBURGH A AT THE. >> Reporter: IN PITTSBURGH AT THE CITY'S WATER. CITY'S WATER TREATMENT PLANT, ICE IN THE RIVIVER BLOCKED. TREATMENT PLANT, ICE IN THE RIVER BLOCKED THE WATER INTAKE. THE WATER INTAKE. EMERGENCY OFFICIALS RACED TO CLEAR THE. EMERGENCY OFFICIALS RACED TO CLEAR THE BLOCKAGE A AND OVER IN. BLOCKAGE AND OVER IN CHICAGO -- >> JUST A HEADS UP. CHICAGO -- >> JUST A HEADS UP. WE ARE EVACUATING. >> JUST A HEADS UP. WE ARERE EVACUATING. >> Reporter: --. WE ARE EVACUATING. >> Reporter: -- OVERNIGHT AIR. OVERNIGHT AIR TRAFFIC CONTROL WAS TEMPORARILY. TRAFFIC CONTNTROL WAS TEMPORARILY EVACUATED AFTER A. TEMPORARILY Y EVACUATED AFTER A WATER PIPE BURST IN. WATER PIPE BURST IN THE TOWER BUILDING. TONIGHT IN THE B BIG. THE TOWER BUILDING. TONIGHT IN THE BIG APPLE THE FOUNTAINS.