The history of wind chill computations is fascinating. Wind Chill Chart Temperature EF Wind mph Calm 40 35 30 25 20 15 10 5 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 5 36 31 25 19 13 7 1 -5 -11 -16 -22 -28 -34 -40 -46 -52 -57 -63 10 34 27 21 15 9 3 -4 -10 -16 -22 -28 -35 -41 -47 -53 -59 -66 -72 15 32 25 19 13 6 0 -7 -13 -19 -26 -32 -39 -45 -51 -58 -64 -71 -77.
Wind Chill Chart Wind Chill Chart Wind
This means that with a wind of 20 kmh and a temperature of -25C one.
Wind chill chart. Fahrenheit Celsius F. Wind Chill Chart and Explanation. The wind chill table is based on sophisticated calculations of heat transfer from the human face in the presence of wind which greatly increases the loss of heat due to convection.
The Windchill Temperature WCT chart below was created in 200½002 by the Environment Canada EC and the US. Frostbite Times Wind Chill Chart 30 minutes 10 minutes 5 minutes 40 36 34 32 30 29 28 28 27 26 26 25 25 Calm 5 10 15 20 25 30 35 40 45 50 55 60 35 31 27 25 24 23 22 21 20 19 19 18 17 30 25 21 19 17 16 15 14 13 12 12 11 10 25 19 15 13 11 9 8 7 6 5 4 4 3 20 13 9 6 4 3 1 0-1-2-3-3-4 15 7 3 0-2-4-5-7-8-9-10-11-11. The wind chill chart shown below is a temperature index which accurately indicates how cold the air feels on human skin.
The new Wind Chill Chart is presented above while the old Wind Chill Chart -- in use until late in 2001 -- is shown below. For a given combination of temperature and wind speed the wind chill index corresponds roughly to the temperature that one would feel in a very light wind. These values give a more accurate representation of temperature than just using the air temperature figure quoted in weather forecasts although some forecasters now also quote feels like temperatures which take this into account.
Watts per Meter Squared. Fillable and printable Wind Chill Chart 2021. If youre like me you have a hard time sitting on the sidelines waiting to ride your motorcycle when its cold.
When the apparent temperature is higher than the air temperature the heat index is used instead. Wind Chill Chart or Wind Chill Chart Calculator will show you clearly the air temperature and wind chill temperature with the change of wind speed. If you find the above data useful please link to this page from.
It is based on a lot of modeling assumptions clear night no sun the human face is approximately a cylinder and a lot of experimental data to estimate thermal properties of humans. Wind chill temperature is a measure of the combined cooling effect of wind and temperature. The wind chill chart also includes a frostbite indicator.
Weathergov Safety Wind Chill Chart. As wind increases heat is carried away from the body at a faster rate driving down both the skin temperature which can cause frostbite and eventually the internal body temperature which can kill. This reveals the temperatures at which wind speed coupled with skin exposure time will produce frostbite.
Winter Weather Forecasts More. Download this motorcycle wind chill chart below and keep it handy. What the temperature feels like to your body.
Enter a temperature in either Fahrenheit or Celsius. Mph knots ms kh C. Now there is a limit of course of where motorcycle riding becomes painful when it gets too cold and if your riding too fast.
Temperature F C Wind Speed Mph Knots Wind Chill F C. 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. Wind chill IS a good indicator of how long it will take for hypothermia or frost bite to occur.
Wind Chill Temperature 3574 06215T - 3575V 016 04275TV 016 where T is the actual air temperature in fahrenheit V is the wind speed in mph. Because the user might need the Wind Chill in Watts per meter squared m2 it can W be calculated using an air temperature in degrees Celsius C and a wind speed in meters per second s. The wind chill calculator only works for temperatures at or below 50 F and wind speeds above 3 mph.
This Wind Chill Temperature comparison chart contrasts the old Wind Chill formula with the new. Wind-chill or windchill popularly wind chill factor is the lowering of body temperature due to the passing-flow of lower-temperature air. Wind Chill Temperature Table Wind Chill Category Work Intensity Little Danger Increased Danger Great Danger High Digging foxhole running marching with rucksack making or breaking bivouac Increased surveillance by small unit leaders.
This is a chart of wind chill factors and is designed to show the temperature we feel at a given air temperature and wind speed. Wind Chill by Tim Brice and Todd Hall Enter a temperature and wind speed that you would like calculated. Wind Chill is a phenomenon that makes us feel colder in winter than the air temperature really is.
The effect of wind chill is to increase the rate of heat loss and reduce any warmer objects to the ambient temperature more quickly. For example a temperature of -25C and a wind speed of 20 kmh give a wind chill index of -37. National Weather Service NWS.
Then enter a Wind Speed in either Knots or Mph. Wind chill numbers are always lower than the air temperature for values where the formula is valid. The Wikipedia article for Wind Chill has a few sentences about the history.
This calculator uses the formula developed by the National Weather Service in the United States which was listed below. M WindChill 121452 116222 Windsfc 116222 Windsfc 33 T All Winter Weather Resource Pages. For an interesting account of the development of the most recent wind chill chart 2001 I highly recommend reading Osczevski and Bluestein The New Wind Chill Equivalent Temperature Chart 2005.
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