What happens when Humidity reaches 100%?

Isn’t that called “rain”?

The earth takes a shower.

100% humidity would result in low level clouds and or fog.

I am wrong. Harp will explain.

First, I think you’re talking about relative humidity. Relative humidity is “relative” because it’s tied to temperature. Warm air can hold more water in vapor form than cool air can, so it takes less water to saturate cool air than warm.

100% relative humidity is the point at which the air can hold no more water vapor. Liquid water left out would be unable to evaporate at all. If the temperature were to lower even a tiny bit, some of the water vapor in the air would be forced to condense back into liquid water, and you’d get precipitation, fog, or dew.

My bad. Harp is clearly more genius on this subject than I.

Damn. Harp beat me to it. Maybe there is more than one resident meteorologist on Fluther.

Asm: Don’t feel bad. Harp is clearly more genius about everything than most people.

100% humidity is called “fog”.

@AC:Not necessarily.

As I know here in Florida, depending on the temperature, it can precipitate out onto cars, objects, plants, etc., especially this time of year.

The air becomes fully saturated and it sucks outside. But yeah, it can result in different types of precipitate (aqueous not the chemical type).

You will sweat out of control!!!

Yeah, the reason 100% humidity feels so godawful is that an important part of our bodies’ temperature control system can no longer function. We rely on the cooling effect of the evaporation of the sweat from our skin to cool us off in hot weather, but if the relative humidity is at 100%, the sweat can’t evaporate, so it does nothing to cool us off. You might as well be wearing a rubber suit. The body’s response is to send out even more sweat. I grew up in Houston, so I had ample opportunity to study the phenomenon

When humidity reaches 100% my hair gets frizzy.

Not sure that’s what you wanted to know, though…

damn, this would have been the perfect question to make me feel smart, but alas, I was too late.

@Eight: But you know how long it takes for light to travel from the sun to the earth. That’s not in everyone’s bag of tricks.

my self-esteem just jumped 5 points ;)

when the humidity reaches 100%, I start to get moldy. Mildew between your toes is so darn itchy!

Easy, you’re in Ohio during the summer.