HOW IT AFFECTS YOUR WEATHER.
THERE IS A JET STREAM THAT GOES 
AROUND THE NORTH POLE.
THE POLAR JET.
IF IT'S SUPPOSED TO DO THAT AND 
KEEP ALL OF THE COLD AIR BOTTLED
UP HERE IN THE NORTH POLE.
WHEN ONE OF THE TROUGHS DECIDES 
TO GO SOUTH AND I MEAN LIKE TO 
THE GULF OF MEXICO, ALL OF A 
SUDDEN YOU HAVE A DIFFERENT 
PICTURE.
YOU HAVE A PICTURE OF THIS.
THE COALAR VORTEX WHERE THAT JET
STREAM IS COMING OUT OF CANADA 
ACROSS THE ROCKIES ALL THE WAY 
DOWN TO THE GULF OF MEXICO AND 
UP TOWARDS GREENLAND.
THAT ALLOWS ALL OF THIS TO POUR 
INTO THE EASTERN PART OF THE 
COUNTRY.
IT HAPPENS EVERY YEAR.
IT JUST DOESN'T HAPPEN LIKE 
THIS.
THIS IS A BIG ONE.
THIS IS A SIGNIFICANT VORTEX 
ALLOWING BIG AIR TO DROP ON 
SOUTH INTO THE HUDSON BAY AND 
KEEP GOING INTO CALGARY AND 
EDMONTON.
INTO MEMPHIS AND ATLANTA AND NEW
YORK CITY.
RIGHT NOW IT'S IN BOSTON.
BECAUSE OF THAT POLAR VORTEX TO 
THE WEST.
THAT WILL
