Episode Transcript
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Speaker 1 (00:00):
Box thirty one's chief meteorologist, Day Fraser, Ainy Day Fraser,
what about this.
Speaker 2 (00:03):
Dug and gloomy skies today? What's happening?
Speaker 3 (00:08):
Weeah that nice refreshing change, thanks for cool front last night.
So instead of baking at ninety five like we did yesterday,
we'll only pop out in the in the mid eighties today.
So that's that's the benefit of the dark and gloomy
skies out there. But the price that comes with it
is a chance for showers and thunderstorms, some of which
will have lightning and wind and hail typical threats, and
(00:29):
so we'll watch for that this afternoon. But the humidity
level is higher today, I'm sure everybody by Colorado standards
just about that, and that can lead to heavy rain
but hopefully beneficial range. So there's a there's a trade
out right, Maybe keep the hail on the small side.
We don't get any damage, but we can ring out
some rain this with this higher humidity, and that's what
I'm hoping for.
Speaker 1 (00:48):
Well, let me give out the text number if people
have weather questions. Now's the time, five sixty six nine.
Oh is who you text? Yesterday? I was driving home
and I was all excited because I was driving through
really like health rain, right, good rain, and then drove
into my neighborhood and not a drop and I was like,
dang it, now I've got to water on my plants.
Speaker 2 (01:06):
So how scattered are these showers?
Speaker 1 (01:09):
When are we I mean, when are we going to
see like a solid line where I know I'm going
to get rain?
Speaker 2 (01:14):
When am I going to get that?
Speaker 3 (01:16):
You know, when we're dealing with storms of convective nature,
you know, it just depends where the first ones go up.
And then we always talk about outflow boundaries. When the
thunderstorms are kind of dying, they can throw a gush
of wind across the ground and that can be a
focal point for additional development. Those things, even the highest
resolution models don't do a good job picking up on,
(01:38):
so you kind of have to watch the radar real time.
I will tell you if you're going to get your
rain up and down the front range. As I'm looking
at our high resolution models, it's going to start. The
clouds are going to delay the start because they're delayed
the heating. So obviously heating is a component to get
the storms going. I'm thinking we're going to be somewhere
in the two to three o'clock start. I think the
(02:01):
best window goes till about five o'clock, and by five
to six they're starting to push past the airport and
go onto the eastern planes. So if you're going to
get the rain, you're going to have to see it
by five to six. If you haven't seen it by
five to six, your only hope would be that an
outflow boundary comes back in your direction, But chances for
that in this type of environment are going to be
(02:21):
on the very low side. So that's your window coverage
is about sixty percent, Mandy. So I know a lot
of people think that that means though there's a pretty
good chance you know that you'll get rain, it's decent.
It means a lot more of us have a better
chance of seeing it, but it's not one hundred percent, all.
Speaker 1 (02:36):
Right, So we got a couple of questions, and funny,
I have three different questions from three different textures, and
they are all about the use of the word land spout.
Let me read them all to you in one one
little fellow swoop here, Hi, Mandy, can.
Speaker 2 (02:51):
You ask Dave what a land spout is? Mandy?
Speaker 1 (02:54):
For Dave, difference between a land spout and a dust devil.
Mandy Weather Wednesday question. Please ask Dave when and why
did they start calling tornadoes land spalves. So let's clear
the air on landsfalts, shall we yep?
Speaker 3 (03:08):
So let me start with the lower end, the dust devil.
The dust devil is exactly that. As the ground heats,
the air rises, and if it heats a finite area,
you can get the air to rise and kind of
swirl a little bit. Generally, a dust devil doesn't do much,
and it doesn't connect to the upper atmosphere, and it
(03:29):
only lasts as long as it's over that heated source
and then it dies away. So if a dust level
comes up and it moves over an area that's cooler,
it's just going to die out. The next one would
be the land spaluve and land spout tornadoes, and that's
the frase you'll hear us use are defined as tornadoes.
It's just that they form in a different way. So
(03:51):
a tornado is generally associated with a large thunderstorm or
a cumulomimous cloud. The whole storm is rotating and the
tornado drops from the center of the storm down to
the ground. And that rotating column of air can be violent,
and as we know, we have categories for them or
a zero one two through the EF scale that we
(04:13):
talked about all the time. And the stronger the wind,
the more damage you're going to have. The storms can
be very large. We don't tend to see them. Most
of Colorado deals with E F zero EF one. They
don't last all that long. A land spout is in essence,
a dust devil that starts on the ground because of
heating or swirling wind, and as a thunderstorm is growing,
(04:34):
just starting to develop, it acts like a suction or
a vacuum, and it stucks that rotation up and connects
it with the cloud and gives it a little more
spin up and so it grows from a different direction. Now,
the lamp spout that did the damage in Franktown yesterday,
most lamp spouts do not do damage. They last, they
don't last very long, and their speeds are very very low.
(04:56):
But I mean, you don't want to be in one.
I mean feeling even stung by bees. The one that
hit frank Down came up and hit the corner of
a building. It looks like it took a roof off
of a commercial property that one only lasted ninety seconds,
But ninety seconds enough. Here's the problem when it comes
to land spouts. The radar the start at the ground.
The radar cannot point directly to the ground radar right,
(05:21):
so the radar is pointing over the horizon. So the
farther out you get from the radar, the beam is
getting higher and higher and higher off the ground because
of the curvature of the earth. So because the radar
is not pointed at the ground, it's pointed more in
the middle aspect of the storms where we can see
the rotation. You don't get the notification of anything happening
until it grows tall enough that it might be able
(05:41):
to be seen by radar. So, in essence, we can
be blind in those respects when it comes to the technology.
Once it connects, it can grow tall, and generally the
base of the thunderstorm is way up high, and sometimes
you'll be able to see it growing up and it
does visually look like a tornado, it's just a different formation.
Speaker 1 (05:57):
So but does it ever become a tornado or is
it all a land spout and it's always a tornado
based on how they start.
Speaker 3 (06:04):
Now it's because of the way it started. It's not
going to the storm that's generating. It is not the
typical formation of a classic rotating funderstorm. It's basically the
thunderstorm is growing and the air going into the thunderstorm
is kind of drawing up that land spout, if you will.
The cloud itself is not generating the rotation in the spent.
Speaker 1 (06:24):
Okay, so it sounds to me as a Floridian. A
land spout is the same as a water spout on
the water.
Speaker 3 (06:32):
So yeah, it can be. But sometimes water stoups can
be tornadoes that form over water, and they define them
as water stops because they're over water.
Speaker 2 (06:41):
Okay, I've actually been in the Gulf.
Speaker 1 (06:43):
Yeah, I've been in the Gulf of Mexico on a
small boat when I watched a land spout form and
it was one of the coolest things I've ever seen
in my life and also super terrifying. So I didn't
enjoy the as we were running away from it as
fast as we could, but it was really fascinating to
see it happen in real time. It was really super cool.
Here's one for you, Dave. Ask Dave if a dust
(07:04):
devil is related to the Tasmanian Devil.
Speaker 3 (07:09):
Or the vice versa. Yes, the Tasmanian Devil is related
to the dust level. Yeah, because dust devils. We all
know the cartoon, right, Yes, swirled the dust devil in
the cartoon, you know, bugs Bunny and the Tasmanian Devil,
a swirling pile of dust creating chaos. And so yeah,
I think it's interchangeable. Which came first, the chicken of
the egg. I can't tell you.
Speaker 2 (07:27):
This is a serious question.
Speaker 3 (07:29):
They need.
Speaker 1 (07:31):
The smoke here on the western slope is awful. Please
ask Dave if there's any relief coming dust in the
next week. We've got some big fire fires burning on
the western slope the border of Utah. Is there any
rain coming to give any relief from that?
Speaker 3 (07:45):
You know? Unfortunately, the long range outlook for the next
six to ten days does keep the western slope dry.
They struggle at this time of the year. We're benefiting
from a cold front that came in from the east
last night. They did not make it up and over
the mountains to the west. So while there will be
spotty storms over the west, for instance, the San Juans tomorrow,
(08:06):
the San Juan Mountains in the southwest. We'll get some
small storms out there. I don't see a huge relief coming.
I don't see a widespread rain event enough to you know,
put the fires out. The hope with the smoke might
be that if we can get a little wind to
stir it and get it up in the way. They
do have air quality alerts right now for the west
(08:26):
and southwest part of the state because of the smoke.
It's unfortunate. But that part of the state We've talked
about it for months and months and months, is the
part of the state. The eastern half of the state
has no drought. The western half of the state is
still druggling its drought and the trade off for rain
chances may come with lightning, and that of course can
spark additional fires. I mean, we've seen the news. You
(08:47):
know what's happening down in the Grand Canyon area in Arizona.
You know, unfortunate to see that the lodge was lost
and stuff. So the west is struggling a little bit.
I just don't see a big enough storm right now
to help. But any wind can help disperse the smoke,
and that would be my hope, is that maybe we
get the smoke up in a way so that they
don't have to deal with the poor air quality and
(09:08):
the smell. Uh.
Speaker 1 (09:09):
Dave Frasier, Joy as always, my friend. We'll talk to
you next week.
Speaker 3 (09:13):
Yep. Have a great rest of your week.
Speaker 2 (09:14):
Huh you do? That is Dave Frasier from Fox thirty one.