Old Wind Chill Chart (used before November 1, 2001) Wind Thermal Comfort Observations – Australia Bureau of Meteorology
#Wind chill chart pdf#
NWS Wind Chill Temperature Index – Includes a wind chill chart in PDF and high resolution TIF formats, an online calculator, and answers to frequently asked questions. The index is defined for temperature at or below 10 (50F) and wind speed above 4.8km/h (. For more information about how this function works, see the Wind Chill raster function. Report on Wind Chill Temperature and Extreme Heat Indices: Evaluation and Improvement Projects – Office of the Federal Coordinator for Meteorology provides this report describing the joint US and Canadian replacement wind chill index project, implemented for the 2001-2002 winter season, and other extreme heat formula evaluations. Calculates the wind chill index from temperature and wind speed. The formula the function uses to compute wind chill is as follows: Wind Chill 35.74 + (0.6215 T) - (35.75 WS0.16) + (0.4275 T WS0.16) T Air Temperature in degrees Fahrenheit. The Canadian index has been harmonized with that used in the United States (although the Celsius scale is used in Canada and the Fahrenheit scale in the US), thus providing a consistent index throughout North America. Based on the human face design which is the most exposed part of the human body to the aspects. It’s based upon the most up to date warmth transfer concept or warmth lost from the body to its surroundings during cool and windy days (likewise gusty days). The chart also shows how frostbite will occur sooner if the temperature is lower or the wind speed higher. Wind Chill ( ° F) 0.6215 T + 35.74 35.75 (V0.16) + 0.4275 T (V0.16). Wind Chill Calculator – National Weather ServiceĮnvironment Canada’s Windchill Program – Offers a wind chill fact sheet, charts and tables, calculators and equations, and a history of the program. Wind Chill Calculator - Wind chill numbers are always lower than the air temperature for values where the formula is valid. For example, a temperature of 5 degrees Fahrenheit and a wind speed of 30 mph equal a wind chill of -19, which will produce frostbite in 30 minutes.
Note: Wind chill is only defined for temperatures in the range -45☏ to +45☏ and wind speeds 3 to 60 mph. 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.
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