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<v Speaker 1>We check in with the best day meteorologists out there.

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<v Speaker 1>He's Dave Frasier.

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<v Speaker 2>Hi, Dave, Hey, good afternoon on a beautiful October.

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<v Speaker 1>First, I was going to say, I have absolutely no

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<v Speaker 1>complaints about today, So well done. Whatever ingredients you had

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<v Speaker 1>to put in your witches brew there to draw up

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<v Speaker 1>this weather, you keep up the good work. But how

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<v Speaker 1>much longer are we going to be getting? I mean,

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<v Speaker 1>I think today, are we going to hit eighty today?

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<v Speaker 2>Yeah, that's our forecast. I is eighty. We're warming about

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<v Speaker 2>two to three degrees above where we were yesterday at

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<v Speaker 2>this time, so that should put us on track for eighty.

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<v Speaker 2>Yesterday we hit seventy seven for the last day of September,

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<v Speaker 2>and so a couple of degrees of warming should get

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<v Speaker 2>us right there. And the average, just so everybody knows,

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<v Speaker 2>is about seventy two, So that is above average, but

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<v Speaker 2>it's not record setting. The records are ninety today and

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<v Speaker 2>then upper eighties for the next few days.

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<v Speaker 1>So it's going to say it's going to be upper

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<v Speaker 1>eighties the next few days. When are we going to

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<v Speaker 1>start to see that lovely fall weather return?

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<v Speaker 2>Come Saturday, come the weekend, we'll start to get a

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<v Speaker 2>little bit of a cool down, a storm system coming

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<v Speaker 2>in from the Pacific northwest, the bulk of which looks

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<v Speaker 2>to go north of Colorado, but a week trailing cold

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<v Speaker 2>front on the southern fringe of it should come across

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<v Speaker 2>the north Central Mountains and clip northeast Colorado. So I

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<v Speaker 2>have shower chances in Saturday late afternoon, early evening, and

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<v Speaker 2>again later in the day on Sunday. It's not a

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<v Speaker 2>high chance, twenty thirty percent chance. And I really think

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<v Speaker 2>it's Denver North that sees it because of the position

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<v Speaker 2>of the storm to the north of us. But a

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<v Speaker 2>week cold front should get us into the mid seventies

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<v Speaker 2>on Saturday, and then following that will be in the

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<v Speaker 2>mid sixties on Sunday, and then the rest of next

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<v Speaker 2>week does look to stay in the sixties, about sixty

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<v Speaker 2>five sixfoos every day and a little unsettled. And by

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<v Speaker 2>that what I mean is there's just going to be

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<v Speaker 2>these storms kind of passing by to the north, and

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<v Speaker 2>I think just close enough by that we're going to

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<v Speaker 2>keep up a ten percent cya chance for a few

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<v Speaker 2>showers in the forecast each afternoon as some of that

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<v Speaker 2>moisture works its way over the mountains and could creep

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<v Speaker 2>down into Denver. Nothing widespread, nothing big, but just a

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<v Speaker 2>little unsettled and certainly a little more like fall for

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<v Speaker 2>next week.

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<v Speaker 1>I've been kind of surprised as I go to let

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<v Speaker 1>my dog out first thing in the morning, and I'm like,

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<v Speaker 1>oh my gosh, it rained last night. Like we've been

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<v Speaker 1>getting rain overnight, which I don't recall in my vast

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<v Speaker 1>thirteen years as being a regular thing. So I'm telling you,

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<v Speaker 1>this summer's been different than any other summer I remember here.

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<v Speaker 2>Yeah, I just think it's been the right mix. And

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<v Speaker 2>while it may not be a traditional summer, I just

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<v Speaker 2>think that overall it's been pretty good. You know, we

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<v Speaker 2>expect certain types of weather when it comes to stormy skies,

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<v Speaker 2>the hail season and the flooding rains and the monsoons.

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<v Speaker 2>We expect that from time to time, and I just

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<v Speaker 2>think that it's just been enough sampling of everything that

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<v Speaker 2>the mix has just been fantastic. For instance, September, I

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<v Speaker 2>crunched the numbers last night, and some people may remember,

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<v Speaker 2>you know, well, it was warm early in the month.

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<v Speaker 2>The longest temperature we had in September was ninety degrees.

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<v Speaker 2>I think was back on the tenth right, and the

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<v Speaker 2>average came out actually one tenth of a degree below. Yeah, wow, September.

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<v Speaker 2>So an average September is like sixty four point eight,

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<v Speaker 2>and we ended up at sixty four point seven. So

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<v Speaker 2>temperature wise, there was a balance as you look at

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<v Speaker 2>the monthly calendar between some above normal temperatures and a

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<v Speaker 2>series of below normal temperatures that everything weighed out to

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<v Speaker 2>be just about average for this time, and we did

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<v Speaker 2>well for moisture because of those overnight showers. We ended

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<v Speaker 2>up about the four tenths of an inch ahead. And

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<v Speaker 2>of course August was great for us for moisture. So yeah,

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<v Speaker 2>I think the balance has been fantastic.

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<v Speaker 1>I got a couple questions from our common Spirit health

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<v Speaker 1>techt line, ask Weatherman Fraser that seems to be very

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<v Speaker 1>I mean, chief Meteorologist Fraser Texture. Ask Weatherman Fraser, why

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<v Speaker 1>does the temperature drop when the sun rises?

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<v Speaker 2>So what happens is your lowest temperature in the morning

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<v Speaker 2>generally occurs just the little f or sunrise. So what

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<v Speaker 2>happens is the sun comes up and for a brief

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<v Speaker 2>period that sunrise heats the atmosphere and kind of turns.

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<v Speaker 2>It turns it a little bit, and colder air always

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<v Speaker 2>sinks to the bottom. So think of a think of

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<v Speaker 2>a murky kind of sandy glass of water and you

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<v Speaker 2>spin it and it's all mixed together. When that goes calm,

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<v Speaker 2>the coldest air kind of drops to the bottom, or

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<v Speaker 2>the sand settles on the bottom of the sediment. Same

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<v Speaker 2>thing happens in the atmosphere. The coldest air is going

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<v Speaker 2>to calm as things kind of are settled. There's just

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<v Speaker 2>enough turnover in the morning briefly as the sun comes

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<v Speaker 2>up before the warming effect kicks in that that colder

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<v Speaker 2>air sinks to the ground.

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<v Speaker 1>Okay, that makes sense, But a follow up question that

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<v Speaker 1>would be what causes that turbulence? What causes that churn?

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<v Speaker 1>Is it the sun rising? Is it the what makes

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<v Speaker 1>that happen in the first place.

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<v Speaker 2>Yeah. If you think about the overnights as being calm

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<v Speaker 2>and stable, yeah, and you don't have the heat eating

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<v Speaker 2>of the sun, you don't have that kind of rising

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<v Speaker 2>motion and kind of that mixing of the atmosphere and

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<v Speaker 2>so forth and so on, then sometimes you know, you

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<v Speaker 2>can get that little bit of a turnover. Same thing

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<v Speaker 2>happens like when we're dealing with wind. So sometimes at

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<v Speaker 2>night we have this, We have this roaring wind coming

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<v Speaker 2>off the foothills and it's kind of cold overnight, and

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<v Speaker 2>the cooler, stable air is forcing the wind down the

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<v Speaker 2>foothills and blowing it out. And then the sun rises

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<v Speaker 2>and the air rises, and it kind of lifts that

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<v Speaker 2>stronger wind away from us on the ground and lifts

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<v Speaker 2>it overhead. So again the atmosphere is very buoyant. That buoyancy,

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<v Speaker 2>just much like an ocean can make a difference. I

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<v Speaker 2>mean in the ocean, you know, the same thing is happening.

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<v Speaker 2>The colder air is sinking down. By the way, did

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<v Speaker 2>you know what the cold is air? I think I've

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<v Speaker 2>told you this before. The coldest temperature for sinking air. No,

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<v Speaker 2>do you have a thirty nine degrees? What? Yeah? Think

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<v Speaker 2>about that? Right? Doesn't make sense? But what happens. What

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<v Speaker 2>happens is you pass thirty nine and you approach thirty two.

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<v Speaker 2>I guess it's yeah, freezes and it flows to the top.

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<v Speaker 2>This coldest oceanaire is closer to thirty nine degrees, causing

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<v Speaker 2>it to sink as opposed to getting closer to freezing,

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<v Speaker 2>when it will turn into cubes and rises.

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<v Speaker 1>Well, isn't that nerdy and interesting? One more question before

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<v Speaker 1>we let you go, and that is just how much

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<v Speaker 1>more difficult is forecasting weather here than other cities? Or

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<v Speaker 1>is that just a myths?

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<v Speaker 2>No, it's not a myth. I remember more than twenty

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<v Speaker 2>five years ago when I was leaving Cincinnati to come

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<v Speaker 2>out here. I worked in the Midwest. There are certain

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<v Speaker 2>things in the Midwest where you can literally do persistent forecasting,

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<v Speaker 2>where you can look out the window and say, doing

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<v Speaker 2>this one hundred miles away, it's going to do this

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<v Speaker 2>in about three hours. It's not that simplistic. Every part

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<v Speaker 2>of the country has its nuances when it comes to

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<v Speaker 2>forecasting challenges. Right about the Great Lakes and lake effects.

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<v Speaker 2>Now you think about, you know, sea breezes in the

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<v Speaker 2>southeast and Florida and the challenges that come with those

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<v Speaker 2>wind lines and shifts and everything like that. But I

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<v Speaker 2>remember when I was leaving to come here, one of

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<v Speaker 2>my good friends in Cincinnati said, you have any idea

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<v Speaker 2>what you get yourself into moving prospect he put to Denver, Colorado.

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<v Speaker 2>He says, good luck to you. And I literally had

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<v Speaker 2>to go and dig out some college books and kind

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<v Speaker 2>of refresh Mountain meteorology, and it has to do with

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<v Speaker 2>everything we talk about here on Weather Wednesdays. It has

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<v Speaker 2>to do with our variant topography and wind is king.

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<v Speaker 2>I say that to when we're interviewing candidates. I said,

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<v Speaker 2>you're going to study wind like you've never studied win before.

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<v Speaker 2>When speeds, when direction lifting, wind falling, wind upslope, downslope,

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<v Speaker 2>direction of the wind, jet streams, so forth. So the

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<v Speaker 2>wind is what drives it, and the monoliths of the

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<v Speaker 2>mountains get in the way of that. And you have

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<v Speaker 2>to understand as that wind flows up, over, down, through

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<v Speaker 2>and around, it changes our weather. And so that's why

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<v Speaker 2>we have when you see snowfall forecast. The variation is

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<v Speaker 2>all driven on what we call topographical features, the mountains,

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<v Speaker 2>the hills, the Palmer Divide, everything plays into that.

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<v Speaker 1>Well, Dave Frasier informative as always that I have one

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<v Speaker 1>more question. Maybe we'll get to it in the next

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<v Speaker 1>Well maybe you can answer a yes or no. Can

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<v Speaker 1>you ask why some of our records date back to

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<v Speaker 1>before we had SUVs. Well, I'm not quite sure why they.

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<v Speaker 1>I mean, how far do our records go back? Reliable

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<v Speaker 1>records here in the metro Do you know.

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<v Speaker 2>I mean, we've had our records go back to the

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<v Speaker 2>late eighteen hundreds, oh wow, right, started being kept and

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<v Speaker 2>again we've talked about this before. Records have been kept

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<v Speaker 2>at four different sites in Denver to downtown, one at

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<v Speaker 2>Stapleton finally moved out in the nineties to Denver International.

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<v Speaker 2>So that's our history of records in Denver eighteen hundreds,

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<v Speaker 2>late eighteen hundreds to now.

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<v Speaker 1>All right, that is Fox thirty one chief meteorologists. You

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<v Speaker 1>can watch him and the rest of their amazing team

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<v Speaker 1>over at Fox thirty one on Fox thirty one and

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<v Speaker 1>we'll talk to you next week, my friend.

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<v Speaker 2>Enjoy the next couple of days and the fall feeling

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<v Speaker 2>next week.

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<v Speaker 1>Amen to that.