Heat Index/Misery Index
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Include a heat/humidity/wind index. Universal Thermal Climate Index (UTCI) Is best. This is the most important meteorological measure for living things.
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S Suty moved this topic from General Discussion on
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@Laird-Madison Hi, Thank you for the suggestion, I’ll forward it to my colleagues. The only parameter similar to a “feels-like temperature” that we currently have on Windy is the Wet Bulb Temperature. Below, I’m including a brief explanation of the Wet Bulb Temperature. Warm regards, Jari
Wet Bulb Temperature (WBT) represents the lowest temperature to which air can be cooled through the evaporation of water. It is measured using a standard thermometer wrapped in a wet cloth and exposed to moving air. The resulting value depends not only on air temperature but also on humidity and wind. The higher the humidity, the less effective the evaporation of sweat from the surface of the human body, and the higher the WBT. If the WBT exceeds 35 °C, the human body can no longer cool itself effectively, even in the shade, which can lead to thermoregulatory failure and death within a few hours. This threshold is therefore considered the physical limit of human survivability.
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I'd like to add my support for a Heat Index layer. It's a metric which I use at work, and it would be ideal to visualise this on a colour-coded short/mid-range forecast (3-5 days).
The Heat Index (HI) calculation which I currently use is:
HI = C1 + C2T + C3φ + C4Tφ + C5T^2 + C6φ^2 + C7T^2φ + C8Tφ^2 + C9T^2φ^2
where
T Ambient dry-bulb temperature (°C) φ Relative humidity (%) C1 -8.785 C2 1.611 C3 2.339 C4 -0.146 C5 -1.231 x 10^-2 C6 -1.642 x 10^-2 C7 2.212 x 10^-3 C8 7.255 x 10^-4 C9 -3.582 x 10^-6 I don't have much of a preference for how a Heat Index layer would be visualised, but it seems logical to use the same colour scale as the existing wet-bulb temperature layer.
