2c:null 2d:["$","title",null,{"children":"Weather | Christian Wilcox | Observable"}] 32:[] 30:{"id":"4f59d7b674149750","slug":"weather","title":"Weather","thumbnail":"62f2c238de84d9b9e02b38bbd6218cab64e1ab61b03571a98638f8a3dc6d78f5","access_level":"public","create_time":"$D2018-11-07T22:06:10.911Z","update_time":"$D2018-11-25T21:09:19.414Z","view_time":null,"first_public_time":"$D2018-11-08T13:12:13.603Z","has_unpublished_edits":null,"fork":false,"stars":0,"starred":false,"owner":{"type":"team","id":"735c6ab969f7c460","login":"cw","name":"Christian Wilcox","avatar_url":"https://avatars-next.observableusercontent.com/368b113ade86a6e356457fa1261dbc0a8f5385612c10809be6aa5d0f98fb0643","tier":"starter_2024"},"version":55,"publish_version":55,"role":null,"authored":false,"authors":[{"type":"individual","id":"d860027f59f6cb70","login":"cw","name":"Christian Wilcox","avatar_url":"https://avatars-next.observableusercontent.com/368b113ade86a6e356457fa1261dbc0a8f5385612c10809be6aa5d0f98fb0643","tier":null}],"members":[{"type":"individual","id":"d860027f59f6cb70","login":"cw","name":"Christian Wilcox","avatar_url":"https://avatars-next.observableusercontent.com/368b113ade86a6e356457fa1261dbc0a8f5385612c10809be6aa5d0f98fb0643","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"title":"Weather","cells":[{"id":0,"value":"md`# Weather\n\nhttps://en.wikipedia.org/wiki/Wind_chill\n\nWindchill temperature is defined only for temperatures at or below 10 °C (50 °F) and wind speeds above 4.8 kilometres per hour (3.0 mph).`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":28,"value":"viewof temperature = html``","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":34,"value":"viewof speed = html``","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":8,"value":"md`Wind chill with temperature of ${temperature}°F and speed of ${speed} mph = ${windChill(\n temperature,\n speed\n)}°F`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":4,"value":"windChill = function(t, s) {\n // from https://www.weather.gov/media/epz/wxcalc/windChill.pdf\n // t should be in degrees F, s should be mph\n if (t > 50 || s < 3) return undefined;\n return Math.round(\n 35.74 +\n 0.6215 * t -\n 35.75 * Math.pow(s, 0.16) +\n 0.4275 * t * Math.pow(s, 0.16)\n );\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":37,"value":"html`\n

Image: Wind chill effect, Wikimedia Commons

`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W32","stdlib":"1","titling":"auto"}} 31:"$30:body"