October 1, 2025 • 9 mins
FOX 31'S DAVE FRASER AT 12:30 For Weather Wednesday so get your questions ready.
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Episode Transcript
Available transcripts are automatically generated. Complete accuracy is not guaranteed.
Speaker 1 (00:00):
We check in with the best day meteorologists out there.
He's Dave Frasier.
Speaker 2 (00:03):
Hi, Dave, Hey, good afternoon on a beautiful October.
Speaker 1 (00:07):
First, I was going to say, I have absolutely no
complaints about today, So well done. Whatever ingredients you had
to put in your witches brew there to draw up
this weather, you keep up the good work. But how
much longer are we going to be getting? I mean,
I think today, are we going to hit eighty today?
Speaker 2 (00:25):
Yeah, that's our forecast. I is eighty. We're warming about
two to three degrees above where we were yesterday at
this time, so that should put us on track for eighty.
Yesterday we hit seventy seven for the last day of September,
and so a couple of degrees of warming should get
us right there. And the average, just so everybody knows,
is about seventy two, So that is above average, but
it's not record setting. The records are ninety today and
(00:46):
then upper eighties for the next few days.
Speaker 1 (00:48):
So it's going to say it's going to be upper
eighties the next few days. When are we going to
start to see that lovely fall weather return?
Speaker 2 (00:55):
Come Saturday, come the weekend, we'll start to get a
little bit of a cool down, a storm system coming
in from the Pacific northwest, the bulk of which looks
to go north of Colorado, but a week trailing cold
front on the southern fringe of it should come across
the north Central Mountains and clip northeast Colorado. So I
have shower chances in Saturday late afternoon, early evening, and
(01:17):
again later in the day on Sunday. It's not a
high chance, twenty thirty percent chance. And I really think
it's Denver North that sees it because of the position
of the storm to the north of us. But a
week cold front should get us into the mid seventies
on Saturday, and then following that will be in the
mid sixties on Sunday, and then the rest of next
week does look to stay in the sixties, about sixty
(01:41):
five sixfoos every day and a little unsettled. And by
that what I mean is there's just going to be
these storms kind of passing by to the north, and
I think just close enough by that we're going to
keep up a ten percent cya chance for a few
showers in the forecast each afternoon as some of that
moisture works its way over the mountains and could creep
(02:02):
down into Denver. Nothing widespread, nothing big, but just a
little unsettled and certainly a little more like fall for
next week.
Speaker 1 (02:09):
I've been kind of surprised as I go to let
my dog out first thing in the morning, and I'm like,
oh my gosh, it rained last night. Like we've been
getting rain overnight, which I don't recall in my vast
thirteen years as being a regular thing. So I'm telling you,
this summer's been different than any other summer I remember here.
Speaker 2 (02:29):
Yeah, I just think it's been the right mix. And
while it may not be a traditional summer, I just
think that overall it's been pretty good. You know, we
expect certain types of weather when it comes to stormy skies,
the hail season and the flooding rains and the monsoons.
We expect that from time to time, and I just
think that it's just been enough sampling of everything that
(02:50):
the mix has just been fantastic. For instance, September, I
crunched the numbers last night, and some people may remember,
you know, well, it was warm early in the month.
The longest temperature we had in September was ninety degrees.
I think was back on the tenth right, and the
average came out actually one tenth of a degree below. Yeah, wow, September.
So an average September is like sixty four point eight,
(03:11):
and we ended up at sixty four point seven. So
temperature wise, there was a balance as you look at
the monthly calendar between some above normal temperatures and a
series of below normal temperatures that everything weighed out to
be just about average for this time, and we did
well for moisture because of those overnight showers. We ended
up about the four tenths of an inch ahead. And
(03:32):
of course August was great for us for moisture. So yeah,
I think the balance has been fantastic.
Speaker 1 (03:37):
I got a couple questions from our common Spirit health
techt line, ask Weatherman Fraser that seems to be very
I mean, chief Meteorologist Fraser Texture. Ask Weatherman Fraser, why
does the temperature drop when the sun rises?
Speaker 2 (03:53):
So what happens is your lowest temperature in the morning
generally occurs just the little f or sunrise. So what
happens is the sun comes up and for a brief
period that sunrise heats the atmosphere and kind of turns.
It turns it a little bit, and colder air always
sinks to the bottom. So think of a think of
(04:14):
a murky kind of sandy glass of water and you
spin it and it's all mixed together. When that goes calm,
the coldest air kind of drops to the bottom, or
the sand settles on the bottom of the sediment. Same
thing happens in the atmosphere. The coldest air is going
to calm as things kind of are settled. There's just
enough turnover in the morning briefly as the sun comes
(04:34):
up before the warming effect kicks in that that colder
air sinks to the ground.
Speaker 1 (04:39):
Okay, that makes sense, But a follow up question that
would be what causes that turbulence? What causes that churn?
Is it the sun rising? Is it the what makes
that happen in the first place.
Speaker 2 (04:54):
Yeah. If you think about the overnights as being calm
and stable, yeah, and you don't have the heat eating
of the sun, you don't have that kind of rising
motion and kind of that mixing of the atmosphere and
so forth and so on, then sometimes you know, you
can get that little bit of a turnover. Same thing
happens like when we're dealing with wind. So sometimes at
night we have this, We have this roaring wind coming
(05:16):
off the foothills and it's kind of cold overnight, and
the cooler, stable air is forcing the wind down the
foothills and blowing it out. And then the sun rises
and the air rises, and it kind of lifts that
stronger wind away from us on the ground and lifts
it overhead. So again the atmosphere is very buoyant. That buoyancy,
just much like an ocean can make a difference. I
(05:37):
mean in the ocean, you know, the same thing is happening.
The colder air is sinking down. By the way, did
you know what the cold is air? I think I've
told you this before. The coldest temperature for sinking air. No,
do you have a thirty nine degrees? What? Yeah? Think
about that? Right? Doesn't make sense? But what happens. What
happens is you pass thirty nine and you approach thirty two.
(06:00):
I guess it's yeah, freezes and it flows to the top.
This coldest oceanaire is closer to thirty nine degrees, causing
it to sink as opposed to getting closer to freezing,
when it will turn into cubes and rises.
Speaker 1 (06:14):
Well, isn't that nerdy and interesting? One more question before
we let you go, and that is just how much
more difficult is forecasting weather here than other cities? Or
is that just a myths?
Speaker 2 (06:29):
No, it's not a myth. I remember more than twenty
five years ago when I was leaving Cincinnati to come
out here. I worked in the Midwest. There are certain
things in the Midwest where you can literally do persistent forecasting,
where you can look out the window and say, doing
this one hundred miles away, it's going to do this
in about three hours. It's not that simplistic. Every part
of the country has its nuances when it comes to
(06:50):
forecasting challenges. Right about the Great Lakes and lake effects.
Now you think about, you know, sea breezes in the
southeast and Florida and the challenges that come with those
wind lines and shifts and everything like that. But I
remember when I was leaving to come here, one of
my good friends in Cincinnati said, you have any idea
what you get yourself into moving prospect he put to Denver, Colorado.
He says, good luck to you. And I literally had
(07:12):
to go and dig out some college books and kind
of refresh Mountain meteorology, and it has to do with
everything we talk about here on Weather Wednesdays. It has
to do with our variant topography and wind is king.
I say that to when we're interviewing candidates. I said,
you're going to study wind like you've never studied win before.
When speeds, when direction lifting, wind falling, wind upslope, downslope,
(07:34):
direction of the wind, jet streams, so forth. So the
wind is what drives it, and the monoliths of the
mountains get in the way of that. And you have
to understand as that wind flows up, over, down, through
and around, it changes our weather. And so that's why
we have when you see snowfall forecast. The variation is
all driven on what we call topographical features, the mountains,
(07:57):
the hills, the Palmer Divide, everything plays into that.
Speaker 1 (08:01):
Well, Dave Frasier informative as always that I have one
more question. Maybe we'll get to it in the next
Well maybe you can answer a yes or no. Can
you ask why some of our records date back to
before we had SUVs. Well, I'm not quite sure why they.
I mean, how far do our records go back? Reliable
records here in the metro Do you know.
Speaker 2 (08:23):
I mean, we've had our records go back to the
late eighteen hundreds, oh wow, right, started being kept and
again we've talked about this before. Records have been kept
at four different sites in Denver to downtown, one at
Stapleton finally moved out in the nineties to Denver International.
So that's our history of records in Denver eighteen hundreds,
late eighteen hundreds to now.
Speaker 1 (08:45):
All right, that is Fox thirty one chief meteorologists. You
can watch him and the rest of their amazing team
over at Fox thirty one on Fox thirty one and
we'll talk to you next week, my friend.
Speaker 2 (08:55):
Enjoy the next couple of days and the fall feeling
next week.
Speaker 1 (08:58):
Amen to that.
We check in with the best day meteorologists out there.
He's Dave Frasier.
Speaker 2 (00:03):
Hi, Dave, Hey, good afternoon on a beautiful October.
Speaker 1 (00:07):
First, I was going to say, I have absolutely no
complaints about today, So well done. Whatever ingredients you had
to put in your witches brew there to draw up
this weather, you keep up the good work. But how
much longer are we going to be getting? I mean,
I think today, are we going to hit eighty today?
Speaker 2 (00:25):
Yeah, that's our forecast. I is eighty. We're warming about
two to three degrees above where we were yesterday at
this time, so that should put us on track for eighty.
Yesterday we hit seventy seven for the last day of September,
and so a couple of degrees of warming should get
us right there. And the average, just so everybody knows,
is about seventy two, So that is above average, but
it's not record setting. The records are ninety today and
(00:46):
then upper eighties for the next few days.
Speaker 1 (00:48):
So it's going to say it's going to be upper
eighties the next few days. When are we going to
start to see that lovely fall weather return?
Speaker 2 (00:55):
Come Saturday, come the weekend, we'll start to get a
little bit of a cool down, a storm system coming
in from the Pacific northwest, the bulk of which looks
to go north of Colorado, but a week trailing cold
front on the southern fringe of it should come across
the north Central Mountains and clip northeast Colorado. So I
have shower chances in Saturday late afternoon, early evening, and
(01:17):
again later in the day on Sunday. It's not a
high chance, twenty thirty percent chance. And I really think
it's Denver North that sees it because of the position
of the storm to the north of us. But a
week cold front should get us into the mid seventies
on Saturday, and then following that will be in the
mid sixties on Sunday, and then the rest of next
week does look to stay in the sixties, about sixty
(01:41):
five sixfoos every day and a little unsettled. And by
that what I mean is there's just going to be
these storms kind of passing by to the north, and
I think just close enough by that we're going to
keep up a ten percent cya chance for a few
showers in the forecast each afternoon as some of that
moisture works its way over the mountains and could creep
(02:02):
down into Denver. Nothing widespread, nothing big, but just a
little unsettled and certainly a little more like fall for
next week.
Speaker 1 (02:09):
I've been kind of surprised as I go to let
my dog out first thing in the morning, and I'm like,
oh my gosh, it rained last night. Like we've been
getting rain overnight, which I don't recall in my vast
thirteen years as being a regular thing. So I'm telling you,
this summer's been different than any other summer I remember here.
Speaker 2 (02:29):
Yeah, I just think it's been the right mix. And
while it may not be a traditional summer, I just
think that overall it's been pretty good. You know, we
expect certain types of weather when it comes to stormy skies,
the hail season and the flooding rains and the monsoons.
We expect that from time to time, and I just
think that it's just been enough sampling of everything that
(02:50):
the mix has just been fantastic. For instance, September, I
crunched the numbers last night, and some people may remember,
you know, well, it was warm early in the month.
The longest temperature we had in September was ninety degrees.
I think was back on the tenth right, and the
average came out actually one tenth of a degree below. Yeah, wow, September.
So an average September is like sixty four point eight,
(03:11):
and we ended up at sixty four point seven. So
temperature wise, there was a balance as you look at
the monthly calendar between some above normal temperatures and a
series of below normal temperatures that everything weighed out to
be just about average for this time, and we did
well for moisture because of those overnight showers. We ended
up about the four tenths of an inch ahead. And
(03:32):
of course August was great for us for moisture. So yeah,
I think the balance has been fantastic.
Speaker 1 (03:37):
I got a couple questions from our common Spirit health
techt line, ask Weatherman Fraser that seems to be very
I mean, chief Meteorologist Fraser Texture. Ask Weatherman Fraser, why
does the temperature drop when the sun rises?
Speaker 2 (03:53):
So what happens is your lowest temperature in the morning
generally occurs just the little f or sunrise. So what
happens is the sun comes up and for a brief
period that sunrise heats the atmosphere and kind of turns.
It turns it a little bit, and colder air always
sinks to the bottom. So think of a think of
(04:14):
a murky kind of sandy glass of water and you
spin it and it's all mixed together. When that goes calm,
the coldest air kind of drops to the bottom, or
the sand settles on the bottom of the sediment. Same
thing happens in the atmosphere. The coldest air is going
to calm as things kind of are settled. There's just
enough turnover in the morning briefly as the sun comes
(04:34):
up before the warming effect kicks in that that colder
air sinks to the ground.
Speaker 1 (04:39):
Okay, that makes sense, But a follow up question that
would be what causes that turbulence? What causes that churn?
Is it the sun rising? Is it the what makes
that happen in the first place.
Speaker 2 (04:54):
Yeah. If you think about the overnights as being calm
and stable, yeah, and you don't have the heat eating
of the sun, you don't have that kind of rising
motion and kind of that mixing of the atmosphere and
so forth and so on, then sometimes you know, you
can get that little bit of a turnover. Same thing
happens like when we're dealing with wind. So sometimes at
night we have this, We have this roaring wind coming
(05:16):
off the foothills and it's kind of cold overnight, and
the cooler, stable air is forcing the wind down the
foothills and blowing it out. And then the sun rises
and the air rises, and it kind of lifts that
stronger wind away from us on the ground and lifts
it overhead. So again the atmosphere is very buoyant. That buoyancy,
just much like an ocean can make a difference. I
(05:37):
mean in the ocean, you know, the same thing is happening.
The colder air is sinking down. By the way, did
you know what the cold is air? I think I've
told you this before. The coldest temperature for sinking air. No,
do you have a thirty nine degrees? What? Yeah? Think
about that? Right? Doesn't make sense? But what happens. What
happens is you pass thirty nine and you approach thirty two.
(06:00):
I guess it's yeah, freezes and it flows to the top.
This coldest oceanaire is closer to thirty nine degrees, causing
it to sink as opposed to getting closer to freezing,
when it will turn into cubes and rises.
Speaker 1 (06:14):
Well, isn't that nerdy and interesting? One more question before
we let you go, and that is just how much
more difficult is forecasting weather here than other cities? Or
is that just a myths?
Speaker 2 (06:29):
No, it's not a myth. I remember more than twenty
five years ago when I was leaving Cincinnati to come
out here. I worked in the Midwest. There are certain
things in the Midwest where you can literally do persistent forecasting,
where you can look out the window and say, doing
this one hundred miles away, it's going to do this
in about three hours. It's not that simplistic. Every part
of the country has its nuances when it comes to
(06:50):
forecasting challenges. Right about the Great Lakes and lake effects.
Now you think about, you know, sea breezes in the
southeast and Florida and the challenges that come with those
wind lines and shifts and everything like that. But I
remember when I was leaving to come here, one of
my good friends in Cincinnati said, you have any idea
what you get yourself into moving prospect he put to Denver, Colorado.
He says, good luck to you. And I literally had
(07:12):
to go and dig out some college books and kind
of refresh Mountain meteorology, and it has to do with
everything we talk about here on Weather Wednesdays. It has
to do with our variant topography and wind is king.
I say that to when we're interviewing candidates. I said,
you're going to study wind like you've never studied win before.
When speeds, when direction lifting, wind falling, wind upslope, downslope,
(07:34):
direction of the wind, jet streams, so forth. So the
wind is what drives it, and the monoliths of the
mountains get in the way of that. And you have
to understand as that wind flows up, over, down, through
and around, it changes our weather. And so that's why
we have when you see snowfall forecast. The variation is
all driven on what we call topographical features, the mountains,
(07:57):
the hills, the Palmer Divide, everything plays into that.
Speaker 1 (08:01):
Well, Dave Frasier informative as always that I have one
more question. Maybe we'll get to it in the next
Well maybe you can answer a yes or no. Can
you ask why some of our records date back to
before we had SUVs. Well, I'm not quite sure why they.
I mean, how far do our records go back? Reliable
records here in the metro Do you know.
Speaker 2 (08:23):
I mean, we've had our records go back to the
late eighteen hundreds, oh wow, right, started being kept and
again we've talked about this before. Records have been kept
at four different sites in Denver to downtown, one at
Stapleton finally moved out in the nineties to Denver International.
So that's our history of records in Denver eighteen hundreds,
late eighteen hundreds to now.
Speaker 1 (08:45):
All right, that is Fox thirty one chief meteorologists. You
can watch him and the rest of their amazing team
over at Fox thirty one on Fox thirty one and
we'll talk to you next week, my friend.
Speaker 2 (08:55):
Enjoy the next couple of days and the fall feeling
next week.
Speaker 1 (08:58):
Amen to that.
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