Let's look at each layer and how you can utilize it!

Wet-bulb temperature

This year's heat has been record-breaking across many places on the planet, such as repeated heatwaves in India this Spring or more than 40C in the UK in July. So having accurate temperature data in such moments is extremely crucial.

But the temperature figures alone don't give a complete picture of the impact of heat on humans. So what is missing? It is the humidity that plays a significant role in how we actually experience high temperatures and how dangerous they are.

This is where the Wet-bulb temperature comes in, as it combines dry air temperature with humidity. It is a value indicating the lowest level of temperature that can be obtained through evaporative cooling of a water-wetted, ventilated surface. The wet-bulb temperature varies with the humidity levels; the more saturated the air is, the less evaporation will occur.

In essence, the WBT value means how well humans can cool themselves by sweating.

The WBT critical threshold is considered 35C, where we can no longer cool down our bodies by sweating. At this temperature, human bodies switch from shedding heat to the environment, to gaining heat from it.

The wet-bulb temperature is especially important for indoor environments, where deaths often occur during heatwaves, and no other factor like solar power or wind comes into effect.

Solar power

Solar Power is the amount of solar radiation (also known as shortwave radiation) that reaches a horizontal plane at the surface of the Earth. It can be characterized as solar irradiance (power per area at a given moment).

Solar radiation is a form of electromagnetic radiation emitted by the sun, measured in watts per square metre (W/m2). On a clear day, the maximum surface value is approximately 1000 W/m2 at solar noon.

It is an essential renewable energy source, as it can be captured and turned into various forms of energy, including electricity using solar panels (PV).

With that said, the Solar power layer can be used to indicate how much energy can be produced during one day with a certain amount of resources, in this case, PV panels.

This parameter comprises both direct and diffuse solar radiation. To a reasonably good approximation, this parameter is the model equivalent of what would be measured by a pyranometer (an instrument used for measuring solar radiation) at the surface.

UV Index

UV Index is a measure of the level of UV radiation at a particular place and time. The UVI indicates the level of radiation and the danger of short-term and long-term exposure to the sun.

Most of us choose what to wear or where we will go based on a weather forecast. We can do the same with the UV Index forecast. The UVI provides valuable information about whether we should adopt protective measures when going outside to avoid health risks and injuries.

The values of UV radiation change throughout the day. The daily maximum UV levels occur during the four-hour period around solar noon (when the Sun passes a location's meridian).

UV index values meaning:

0 to 2 means low danger from the Sun's UV rays for the average person.
3 to 5 means moderate risk of harm from unprotected sun exposure.
6 to 7 means high risk of harm from unprotected sun exposure.
8 to 10 means very high risk of harm from unprotected sun exposure.
11 or more means extreme risk of harm from unprotected sun exposure.

How to access the new layers

The new layers are located under the Temperature category on both the desktop and the app. And are also available on the 3D Globe for Premium users (desktop only).

If you do not see them right away, open the "More layers.." option and select them from the layer list.

https://www.windy.com/-Wet-bulb-temp--wetbulbtemp?wetbulbtemp,38.461,-29.403,3,internal