Ask Science explains. How do meteorologists know what the temperature will feel like to you? Although numeric, temperatures are not universal. Most of us have a sense of what a temperature of 75 degrees Fahrenheit means, but add a brisk wind and you will feel colder.
Raise the humidity and the temperature your body experiences feels a lot higher too. Precipitation and cloud cover also play a role in making that 75 degrees a more relative experience.
What is the heat index? A simple measure of how a temperature of 85 degrees Fahrenheit, for example, will likely feel different in Houston, Texas versus Los Angeles, California is the heat index. The heat index combines the temperature and a measure of the relative humidity to give a better indication of how hot that temperature will actually feel. On a hot day, our bodies sweat to cool down. In a low humidity, dry environment, that sweat is quickly evaporated into the air leaving us feeling effectively cooled.
In humid locales, the air is already full of moisture and so our sweat evaporates more slowly or not at all , leaving us feeling hotter. Cold air can hold less water vapor so as temperatures decrease, eventually a temperature called the dewpoint is reached when the air is too cold to hold anymore moisture.
Since water vapor can no longer remain in the air as humidity, it instead begins to condense on surfaces. It may differ from the regular temperature — as if a special employee of the weather station goes out in the morning and describes what he or she feels. Air temperature is a real physical quantity that is measured with a thermometer in a special ventilated meteorological booth. That is, the "feels like temperature" is the temperature that a person dressed for the season feels. There is no single way to calculate feels like temp, and there is no special feels like temperature calculator.
Different meteorological services and mobile applications include different sets of indicators in the calculation. But there are two different indices for determining the "feels like temperature" — the Heat Index and the Wind Chill Factor. When planning outdoor activities during the warm season, it is important to consider the Heat Index.
In the heat, the human body sweats a lot, but because of the high humidity, the sweat hardly evaporates. This slows down the cooling process of the body and significantly increases the risk of getting heatstroke. Its symptoms are headache, heart palpitations, confusion, dizziness, dehydration, muscle cramps, nausea, and general weakness.
For example, if you are planning to trail run a distance in the mountains in a new country or region, come there at least a few days earlier so that the body acclimatizes. Reduce your athletic load, exercise in special light clothing, and drink plenty of water. After all, the more a person sweats in hot and humid weather, the more important it is to replenish fluid losses, which directly affect energy levels.
If possible, train in the shade — so the body will not heat up from direct sunlight at least. It is best to switch from active training to quiet activities such as walking or fishing if the "feels like temperature" is high. Better yet, go swimming: being in the water will help the body cool down faster.
But the main thing is to put on a hat. When doing sports and outdoor activities during the cold season, it is extremely important to take into account the Wind Chill Factor. Low air temperatures are dangerous for the human body, and this danger is further intensified by an increase in wind speed.
The Wind Chill Factor is especially important when preparing for active winter sports that involve wind. Keep reading this article to learn more and be ready for any weather. The feels like temperature is a temperature that people can experience while being outside. It takes into consideration humidity, wind speed, and calculates how the human body actually feels temperature. During a humid summer day , you can feel more uncomfortable than on a hotter but drier day.
Whether is the case, be it cold or warm, the impact of wind and humidity on the feeling temperature can be very big. By knowing the feels like temperature, you can get ready for outside conditions. The temperature that you see on the broadcast forecast or on the internet indicates the temperature of the air.
Nowadays, many more forecasts take into consideration factors that can influence the feels like temperature. Additionally, they confront it with the knowledge of the human body. The heat index or the apparent temperature is the way that the human body feels the temperature in the humid air. The relative humidity is combined with the air temperature. The heat index is a very important measurement.
It shows the comfort of the body during a hot day. When the body is too hot, it perspires to get rid of excessive heat and cool itself off. In a more humid environment, cooling off the body this way is more complicated. When the wind is very intense , you might quickly notice that the temperature feels much lower than it is in reality. The temperature that humans feel because of the wind is called the wind chill factor.
The wind chill factor is especially noticeable on winter days. With the wind blowing at 25 mph, the feels temperature might drop to eight Fahrenheit.
0コメント