the big weather story of
surge in arctic air Wedne
we're talking about overn
zero mega wind chills. Ju
weather out there. So let
about this Judah Cohen is
the director of seasonal
and environmental researc
this is arctic air, it's
causes this? Why is it go
Yeah. So, you know, tom t
often. And and the media
you get a disruption or w
vortex, you tend to get a
So there are these disrup
of the polar vortex kind
flavors, one of them. So
an area of low pressure t
the north pole and you ha
circulation around the, a
of low pressure uh on the
it's high up in the atmos
stratosphere, so like 15
above the surface. But it
to be mild. But if it kin
gets disrupted and takes
shapes, one of them being
stretches or elongates li
then that allows the cold
of inside of that circula
further south than it typ
circular cold is kind of
in the arctic near the no
if it expands or you know
across north America acro
United States, that cold
to go much further south.
what's happening this wee
ending up with the air th
parts of Canada, even Nor
we're on the the further
band as you described it
Yeah. There's that southe
you get development of th
the in this circulation a
polar vortex. So air that
the arctic or Canada in t
you get you tend to get t
polar flow where flow com
into Canada even down the
it was very cold air that
you know, got down to lik
a piece of that area is g
you know from from Siberi
ocean, you know into Cana
the U. S. And obviously m
No one's predicting tempe
F but You know, but still
you know um you know for
mean certainly for this t
know December is I think
month, I mean we're not t
we are talking potentiall
those wind chills. So I m
kind of thing, how rare i
You know, in recent times
rare. So I mean what we'r
say that it's something s
in February 2021. I don't
will be of that magnitude
one of those stretching o
polar vortex and we had t
So I think, you know this
back, you know, I say thi
most intense cold air ope
then. Again, I'm not pred
You know, how often does
you know, the stretch pol
every winter, but you kno
the more extreme side. Um
winners, you know, we get
We had uh you know, here
you're in Denver, I'm in
the new England, we got o
end december 2020 17, I'd
the most, you know, that'
um in december and then a
kind of the infamous wint
know, but it was in Denve
in the Great Lakes, you k
in some places on record,
of those events during th
know, I certainly get som
few years, I would say. C
Cohen, thanks so much for