# Beaufort support #161

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opened this Issue Nov 26, 2015 · 5 comments

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 Hi! I would love to see Beaufort support, that would made simpleWeather even simpler :) The Beaufort Scale is used by the Netherlands, Germany, Greece, China, Taiwan, Hong Kong, Malta and Macau. It is also used by the BBC 4 UK and Met Éireann IRL. Two scales are in use, one 'official' 1 - 12 beaufort and one extended version which adds 13 - 17 (only in use by China and Taiwan). https://en.wikipedia.org/wiki/Beaufort_scale MPH Wind speeds delivered from Yahoo could be calculated to beaufort.
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 Hmm, this should be pretty easy to add. I'll look at getting it in the next release. Thanks for the suggestion!
self-assigned this Nov 27, 2015
added the Feature label Nov 27, 2015
added this to the v4.0.0 milestone Nov 27, 2015
 I recently had to add support for kmh to Beaufort. Maybe you will find it useful function KmhB(x) { var speed = (Math.pow(Math.pow((x / 3.0096), 0.33), 2)); if (isNaN(speed) || (speed) >= 12.5) { console.log("Beaufort-values are between 0 and 12. Your input is beyond that scale.") } else { return speed; } }
 Also for miles per hour to Beaufort I used this. function mphB(x) { var speed = (Math.pow(Math.pow((x/1.8702),0.33),2)); if (isNaN(speed) || (speed)>=12.5) { console.log("Beaufort-values are between 0 and 12. Your input is beyond that scale.") } else { return speed; } }
 I used this site as reference and source for my code (http://www.whiteweather.com/wd/vind/Windspeed.htm).
commented Feb 8, 2016
 // set windspeed to mph ``````var windSpeed = (weather.units.speed == "mph") ? weather.wind.speed : KMtoMPH(weather.wind.speed); function KMtoMPH(amt){ return Math.round((amt*0.621371)); } function get_beaufort_number ( windMPH ) { // return a number for the beaufort scale based on wind speed (native WD format) if (windMPH < 1 ) {return("0"); } if (windMPH < 3 ) {return("1"); } if (windMPH < 7 ) {return("2"); } if (windMPH < 12 ) {return("3"); } if (windMPH < 18 ) {return("4"); } if (windMPH < 24 ) {return("5"); } if (windMPH < 31 ) {return("6"); } if (windMPH < 38 ) {return("7"); } if (windMPH < 46 ) {return("8"); } if (windMPH < 54 ) {return("9"); } if (windMPH < 63 ) {return("10"); } if (windMPH < 72 ) {return("11"); } if (windMPH >= 82 ) {return("12"); } // you can scale as far as needed return("0"); } .... html += '
• Wind Beaufort Index: '+get_beaufort_number(windSpeed)+'
• '; `````` You will need https://github.com/erikflowers/weather-icons if you want the icon to work