Deep Dew Doo. New Record for Dew Point?

July 20, 2019


The dew point is the temperature to which air must be cooled to become saturated with water vapor. When further cooled, the airborne water vapor will condense to form liquid water (dew)

Woke up last night to check out the thunderstorm rolling thru.
Normally, one feels a rush of cooler air as a storm like this comes by, but I was struck by the heat (at 2 am) and heaviness of the air, even as sheets of rain were falling.

Another hot one today.

Business Insider:

Sweat might be annoying, but it’s part of your body’s temperature regulation system, and it could save your life. As that moisture evaporates, it cools you off.

High humidity saturates the air with moisture, reducing its capacity to absorb more water vapor. That means sweat can’t evaporate so easily. Your body’s best cooling mechanism is disarmed. 

Heat index combines temperature with humidity to quantify what temperature it feels like to the human body. More humidity means less sweat evaporation, which means it feels hotter. The heat index, not the temperature, is the number that your body reacts to. It might be 90 degrees outside, but if it’s humid enough your body will react like it’s 117. 

Heat index calculations assume shady, light wind conditions, so full sun exposure can increase heat index values by up to 15 degrees.

If your body reaches dangerously high temperatures, it can cause heat stroke and even death.

11 Responses to “Deep Dew Doo. New Record for Dew Point?”

    • rhymeswithgoalie Says:

      What I like about that CS video was all the interspersed “old” discussions (1982, 1991) and the references to Shell as the source of much of that old forecasting work.

  1. dumboldguy Says:

    Large portions of the planet are going to have temperature and humidity levels in the future that will NOT support humans.

  2. Keith McClary Says:

    We had frost yesterday morning (southern Alberta).

      • Keith McClary Says:

        It was colder than Alert, Nunavut (82.3 N).

        • rsmurf Says:

          Case closed, no warming your a genius!

          • rhymeswithgoalie Says:

            Will you at least re-read, or better yet, read out loud the comment you’re responding to before making a nonsensical response?

          • rsmurf Says:

            No, you’re response is still nonsensical. But that’s ok, we have compassion for slow people.

          • dumboldguy Says:

            Is smurfie’s game with “your” and “you’re” an attempt at humor, an overdone POE trick, or a sign of stupidity?

            I try not to be judgmental, so I went out back and had a conversation with the bricks in my patio. Conclusion?—-I suspect that smurfy IS dumber than most of them, except for those that have cracked, broken loose from the mortar, or have weeds growing next to them.

            And “compassion for slow people” is a good one. How about a new activist group on their behalf?—-Compassion Worldwide for Slow People (CoWSloP for short). Smurfy can be the poster child.

  3. redskylite Says:

    Massive heat wave blamed for at least 6 deaths – live updates

    At least six deaths were blamed on the excessive heat: 4 people died in Maryland, while one died in Arizona and another died in Arkansas.

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