What is the wind chill factor?

Wind chill or windchill (popularly wind chill factor) is the lowering of body temperature due to the passing-flow of lower-temperature air. When the apparent temperature is higher than the air temperature, the heat index is used instead.

How do you figure wind chill factor?

A good approximation of the wind-chill temperature can be found by multiplying the wind speed by 0.7 and then subtracting that value from the air temperature.

What is the chill factor outside?

The windchill factor is the temperature that a person feels because of the wind. For example, if a thermometer reads 35 degrees Fahrenheit outside and the wind is blowing at 25 miles per hour (mph), the windchill factor causes it to feel like it is 8 degrees F.

What temp is a wind chill warning?

Under the new system the extreme cold warning is issued based on either the temperature or the wind chill being a certain value for at least two hours. The values range from −30 °C (−22 °F) in the south to −55 °C (−67 °F) in parts of the Arctic.

Does wind chill affect freezing?

Wind chill is a perceived air temperature, not a physical quantity. Water will not freeze with the temperature air at or above 33 degrees, regardless of how far the wind chill is below freezing. Wind chill has no effect on inanimate objects, and they cannot be cooled below the ambient air temperature.

Does wind chill affect pipes freezing?

It will not. Wind chill is a perceived air temperature, not a physical quantity. Water will not freeze with the temperature air at or above 33 degrees, regardless of how far the wind chill is below freezing. Wind chill has no effect on inanimate objects, and they cannot be cooled below the ambient air temperature.

What is the difference between wind chill and wind chill warning?

A wind chill advisory is issued when wind chill temperatures are potentially hazardous. A wind chill warning is issued when wind chill temperatures are life threatening. Wind chill is the temperature it “feels like” outside and is based on the rate of heat loss from exposed skin caused by the effects of wind and cold.

Can pipes freeze from wind chill?

How does the NWS wind chill index work?

Cold Resources. The NWS Wind Chill Temperature (WCT) index uses advances in science, technology, and computer modeling to provide an accurate, understandable, and useful formula for calculating the dangers from winter winds and freezing temperatures.

How to do a wind chill temperature calculator?

Wind Chill Calculator 1 Select the wind speed unit between mph, km/h, m/s, ft/s, knots 2 Enter the wind speed 3 Choose the temperature unit between degrees Fahrenheit, degrees Celsius, or Kelvin 4 Enter the air temperature and click the “Calculate” button to estimate the wind chill temperature.

How tall is the average person in wind?

Calculates wind speed at an average height of 5 feet, the typical height of an adult human face, based on readings from the national standard height of 33 feet, which is the typical height of an anemometer Incorporates heat transfer theory based on heat loss from the body to its surroundings, during cold and breezy/windy days