This podcast talks about some of the significance of dew points. Dew point is defined in this podcast. This podcast also discusses the most spectacular (my opinion) weather variable (and its even man made) in regards to humidity. We talk about the Midwest corn fields. The transcript is as follows:Unknown 0:08Good morning, everyone. It is Monday August 2. I wish this could be part of the humidity podcast. But that one is just too long already. I wanted to just discuss, why is it so rare to have at Dewey dewpoints in this country? Why? Why do we not experience the yet the other countries on by the Red Sea in the Persian Gulf, they do experience 80 degree dew points well into the 80s. And we don't what's wrong over here? We have the Gulf of Mexico. So what exactly is wrong, the Gulf of Mexico is really, really warm waters. So first, I, maybe I should explain what dew point is, like I did in the previous podcasts, a couple other podcasts. vouchsafed very quickly, the dew point is the most accurate way to measure humidity in the air, it's the temperature at which the environment would become saturated. So again, we have a large jar holds more water than a small jar, heat expands. So the warmer it is, the larger the air molecules are, the more water vapor it could hold. Relative humidity is how much water vapor is the air holding compared to what it could hold. So what you end up with is 90 degrees with a relative humidity of 50%. Relative humidity of 50% mix is a usually the dew points about 20 degrees lower than the temperature. It's that's not 100%. exactly correct. It depends on what the temperature is. But if you have an air temperature of 90 degrees, relative humidity, 50%, that's holding as much water vapor at 70 degrees could hold. So the relative humidity of 100%. When the temperature 70 would produce a relative humidity of 50% when the temperature is 90. And a lot of times by the way, and 90 degree heat in the afternoon, drops to 70 at night. So it's not uncommon to see the relative humidity close to 100% in the morning, and then drop the 50% in the afternoon. It's not that the humidity is dropping the humidity staying the same. The only differences is the relative humidity relative humidity is important. More so I think it's more important for weather forecasters. And dealing with the environment how much the what are the chances that the precipitation will be evaporating before it touches the ground. And it's more important for forecasters, it doesn't play To my knowledge, it does not play a significant role. And for our purposes, in terms of how the air feels, the only time it would play a significant role is when we're dealing with borderline humidity. So dew points of 60 or higher are considered humid, dew points of 70, or higher or 72 or higher, are considered oppressive, sometimes maybe even Upper 60s. So when dew points are in the 70s, it's going to feel humid, no matter what, when dew points are in the 60s, it's gonna feel humid. But when temperatures get really hot, it's not gonna feel humid, it's gonna feel more dry, there still will be a heat index of a degree or two, but it's gonna feel a little bit more dry, the relative humidity is so low in the morning, it's gonna feel humid. And when dew points are in the 60s, I think you do need a higher relative humidity in order for it to feel for it to have that moist feeling. And I think if if it's in the Upper 50s with the relative humidity of 100%, I think it's also going to have that moist feeling as well. So I think that's where the relative humidity plays a role and comfort level in when dew points are in the 60s, and also in the winter in terms of that damp feeling. But again, we go back to our question is why are dew points higher than 80 so rare here in this country. Now one thing you have to realize is that the temperature always has to be higher than the dew point. So the only time dew points of 80 degrees could occur is if the basically the...

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