and <> parts out and replace with spaces, they’re tabs, that was me copying from my editor which was set to show tabs which then became part of that copy. official adjudicator of ocean rowing records for Guinness World Strange, it doesn’t seem to be returning a valid result: Mqtt_WeatherStation_WindDir changed from NULL to 1969-12-31T19:04:22.000-0500, Will have to look at later, but if you have any ideas…, Powered by Discourse, best viewed with JavaScript enabled, Convert Wind Direction (degrees) to Compass Points, Announcing OpenWeatherMap binding for Eclipse SmartHome / openHAB. To bleat even more ;)… You don’t need to define both upper and lower border: Sorry, but the old navigator has to step in. In this article we’ve rounded up the best wind direction and speed meters for your consideration. Anyway, the wind and wind gust directions are returned as angular degrees (0 being North, 90 East etc), so I’ve knocked up a script to turn that input into compass points (NE, SW etc). The best anemometers for kids (kids anemometer info & how to guides), The best sailboat wind direction indicators, sailing wind speed meters & sailing anemometers, The Best Smartphone Anemometers – Wind Meters with iPhone & Android Apps, 15 Space & Astronomy Gifts for Kids & Aspiring Astronomers, How to keep your apartment or house cool during summer without air conditioning, 15 Gift Ideas For Weather Enthusiasts & Weather Geeks, How to get kids interested in STEM and curious about science, Wind Speed and Direction Meters & Wind Direction Gauges. My amended version using the actual compass points even though my readings are integers, this still holds true. Just a slight pointer to the Scale Transformation which does the math for you. from the 225 degree position of the compass, and is moving towards the What is an Anemometer and What is it Used For? There are many different uses for wind direction and speed meters. 1983-2018 Oceanrowing.com ENE. The blades of the windmill are tipped with colored paint, further increasing their visibility even against gray skies. degrees around the circle. More broadly speaking wind speed meters are called anemometers, and wind direction is often an extra function of sophisticated anemometers. the wind is coming from that direction. I thought I’d share it here for those that could take advantage of it. N for North would be assigned to courses from above 348,75 over 360 (which is 0 ) to 11,25 On the compass below the letter N stands for North, S stands for South, E stands for East, and W stands for West. It measures wind direction using a digital compass that can give you precise wind direction in degrees and compass points. increase as you move around the compass clockwise until you reach 360 You can also see that the compass is divided into 360 My guess is you do not know the difference between a val (value) and a var (variable). y+=""; Understanding Wind Direction: From an Oceanographer’s Point of View Scientists use both numbers and letters on a compass to measure wind direction. Cons: Doesn’t give exact speed measurements, is quite large. var: object; val: method. Happy to find this. Besides being a wind direction and speed meter, what else do anemometers measure? Ambient Weather WM-4 Handheld Weather Station. And it does more than that: for this anemometer, wind direction is only the beginning. bv=Math.round(parseFloat(nv.appVersion)*100); If I remove it, the value is shown as null. Requires batteries, although the included replaceable battery often lasts for years at a time, Related: The Best Portable Anemometers & Portable Weather Meters, Ambient Weather WS-12 Wireless Weather Station. are left with 45 degrees (225 – 180 = 45). http://www.coolclassroom.org/pdfs/understandingwinddirection.pdf, © But I’ll definitely use the scale transform once I’m happy with the values my weather station provides. winds based on the direction the wind is coming from. "&r="+escape(d.referrer)+"&pg="+escape(window.location.href)+"' border=0 width=88 height=31 alt='SpyLOG'>"; I am pretty aware that wind direction degrees will not be issued in scales lower than one degree, but I would suggest you do it like this: That way you ensure you will even catch those numbers correctly. It’s not limited to my situation, it should work on any weather page where this conversion would be handy. The weather station monitoring unit is solar powered. When you think of weathervanes you might think of the traditional ornamental weathervanes that you may have seen on top of beautiful old farmhouses. Newer digital wind maps present wind speeds using color and wind direction using arrowheads. Modify the ‘return’ lines to achieve the output you’d prefer, currently I’m showing both the angular direction and compass point for testing purposes, and seeing what my weather station is returning via weewx mqtt: Item config, the script in my case is named windDir.js in the the CONFIG/transform directory: This line will always give false I’m pretty sure what you want is. So, a wind coming from 225 I have a FineOffset WH3081 weather station which I monitor with ‘weewx’ on a Linux Mint PC. Oh, maybe I need to wait for an item update? COOLroom scientists name So, a wind direction of 225 degrees means that the wind is coming And it does more than that: for this anemometer, wind direction is only the beginning. "+z+ On the other hand, there is the small possibility that the sock might rip, and it doesn’t give you numeric measurements like some of the other wind speed meters in this article. So, a Southwest wind comes from EDIT: it doesn’t work as expected though. Jep, but you missed the tricky part I added 11.25 so north is now 0° to 22.5° (val j), (function(i) { val j = (i+11.25) % 360; if (j <= 22.5) return +i + “° -=- N”; else if (j <= 45 ) return +i + “° -=- NNE”; else if (j <= 67.5) return +i + “° -=- NE”; else if (j <= 90 ) return +i + “° -=- ENE”; else if (j <= 112.5) return +i + “° -=- E”; else if (j <= 135 ) return +i + “° -=- ESE”; else if (j <= 157.5) return +i + “° -=- SE”; else if (j <= 180 ) return +i + “° -=- SSE”; else if (j <= 202.5) return +i + “° -=- S”; else if (j <= 225 ) return +i + “° -=- SSW”; else if (j <= 247.5) return +i + “° -=- SW”; else if (j <= 270 ) return +i + “° -=- WSW”; else if (j <= 292.5) return +i + “° -=- W”; else if (j <= 315 ) return +i + “° -=- WNW”; else if (j <= 337.5) return +i + “° -=- NW”; else return +i + “° -=- NNW”; })(input). 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11.25 - 33.75. POINTS OF THE COMPASS. I’ll stick to my script for now though so I can return both the angular direction and the compass point together. Pros: Offers precise digital measurements of wind direction, compact handheld form factor for travel anemometer use, Cons: Slight learning curve. Thanks guys. Pros: Easy to operate, easily visible from far away, doesn’t require batteries, looks nice (if you like the windmill tower look). Anemometers often measure much more than just wind speed and direction. It also measures wind speed, temperature, dew point, crosswind and tail wind, and much more. Different compass roses (4, 8, 16, 32, 128-wind compass roses) are supported. It should have come through by now…. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. This personal weather station can be mounted outdoors and collects several types of data. For more about anemometers, how they work and when they were invented, see our article: What is an Anemometer and What is it Used For? Or a person might want a mountable wind direction gauge for sailing. It can also be used as an alarm clock. @Udo_Hartmann and @zobelhelas you’re indeed right, I do like the look of this solution best though. 101.25 - 123.75. This wind mill kit comes with everything you need to set it up in your yard. u="u895.69.spylog.com";d=document;nv=navigator;na=nv.appName;p=1; degrees is moving towards the 45 degree position. Available in green and yellow or gray and red. Records. y+=" and <> parts out and replace with spaces, they’re tabs, that was me copying from my editor which was set to show tabs which then became part of that copy. official adjudicator of ocean rowing records for Guinness World Strange, it doesn’t seem to be returning a valid result: Mqtt_WeatherStation_WindDir changed from NULL to 1969-12-31T19:04:22.000-0500, Will have to look at later, but if you have any ideas…, Powered by Discourse, best viewed with JavaScript enabled, Convert Wind Direction (degrees) to Compass Points, Announcing OpenWeatherMap binding for Eclipse SmartHome / openHAB. To bleat even more ;)… You don’t need to define both upper and lower border: Sorry, but the old navigator has to step in. In this article we’ve rounded up the best wind direction and speed meters for your consideration. Anyway, the wind and wind gust directions are returned as angular degrees (0 being North, 90 East etc), so I’ve knocked up a script to turn that input into compass points (NE, SW etc). The best anemometers for kids (kids anemometer info & how to guides), The best sailboat wind direction indicators, sailing wind speed meters & sailing anemometers, The Best Smartphone Anemometers – Wind Meters with iPhone & Android Apps, 15 Space & Astronomy Gifts for Kids & Aspiring Astronomers, How to keep your apartment or house cool during summer without air conditioning, 15 Gift Ideas For Weather Enthusiasts & Weather Geeks, How to get kids interested in STEM and curious about science, Wind Speed and Direction Meters & Wind Direction Gauges. My amended version using the actual compass points even though my readings are integers, this still holds true. Just a slight pointer to the Scale Transformation which does the math for you. from the 225 degree position of the compass, and is moving towards the What is an Anemometer and What is it Used For? There are many different uses for wind direction and speed meters. 1983-2018 Oceanrowing.com ENE. The blades of the windmill are tipped with colored paint, further increasing their visibility even against gray skies. degrees around the circle. More broadly speaking wind speed meters are called anemometers, and wind direction is often an extra function of sophisticated anemometers. the wind is coming from that direction. I thought I’d share it here for those that could take advantage of it. N for North would be assigned to courses from above 348,75 over 360 (which is 0 ) to 11,25 On the compass below the letter N stands for North, S stands for South, E stands for East, and W stands for West. It measures wind direction using a digital compass that can give you precise wind direction in degrees and compass points. increase as you move around the compass clockwise until you reach 360 You can also see that the compass is divided into 360 My guess is you do not know the difference between a val (value) and a var (variable). y+=""; Understanding Wind Direction: From an Oceanographer’s Point of View Scientists use both numbers and letters on a compass to measure wind direction. Cons: Doesn’t give exact speed measurements, is quite large. var: object; val: method. Happy to find this. Besides being a wind direction and speed meter, what else do anemometers measure? Ambient Weather WM-4 Handheld Weather Station. And it does more than that: for this anemometer, wind direction is only the beginning. bv=Math.round(parseFloat(nv.appVersion)*100); If I remove it, the value is shown as null. Requires batteries, although the included replaceable battery often lasts for years at a time, Related: The Best Portable Anemometers & Portable Weather Meters, Ambient Weather WS-12 Wireless Weather Station. are left with 45 degrees (225 – 180 = 45). http://www.coolclassroom.org/pdfs/understandingwinddirection.pdf, © But I’ll definitely use the scale transform once I’m happy with the values my weather station provides. winds based on the direction the wind is coming from. "&r="+escape(d.referrer)+"&pg="+escape(window.location.href)+"' border=0 width=88 height=31 alt='SpyLOG'>"; I am pretty aware that wind direction degrees will not be issued in scales lower than one degree, but I would suggest you do it like this: That way you ensure you will even catch those numbers correctly. It’s not limited to my situation, it should work on any weather page where this conversion would be handy. The weather station monitoring unit is solar powered. When you think of weathervanes you might think of the traditional ornamental weathervanes that you may have seen on top of beautiful old farmhouses. Newer digital wind maps present wind speeds using color and wind direction using arrowheads. Modify the ‘return’ lines to achieve the output you’d prefer, currently I’m showing both the angular direction and compass point for testing purposes, and seeing what my weather station is returning via weewx mqtt: Item config, the script in my case is named windDir.js in the the CONFIG/transform directory: This line will always give false I’m pretty sure what you want is. So, a wind coming from 225 I have a FineOffset WH3081 weather station which I monitor with ‘weewx’ on a Linux Mint PC. Oh, maybe I need to wait for an item update? COOLroom scientists name So, a wind direction of 225 degrees means that the wind is coming And it does more than that: for this anemometer, wind direction is only the beginning. "+z+ On the other hand, there is the small possibility that the sock might rip, and it doesn’t give you numeric measurements like some of the other wind speed meters in this article. So, a Southwest wind comes from EDIT: it doesn’t work as expected though. Jep, but you missed the tricky part I added 11.25 so north is now 0° to 22.5° (val j), (function(i) { val j = (i+11.25) % 360; if (j <= 22.5) return +i + “° -=- N”; else if (j <= 45 ) return +i + “° -=- NNE”; else if (j <= 67.5) return +i + “° -=- NE”; else if (j <= 90 ) return +i + “° -=- ENE”; else if (j <= 112.5) return +i + “° -=- E”; else if (j <= 135 ) return +i + “° -=- ESE”; else if (j <= 157.5) return +i + “° -=- SE”; else if (j <= 180 ) return +i + “° -=- SSE”; else if (j <= 202.5) return +i + “° -=- S”; else if (j <= 225 ) return +i + “° -=- SSW”; else if (j <= 247.5) return +i + “° -=- SW”; else if (j <= 270 ) return +i + “° -=- WSW”; else if (j <= 292.5) return +i + “° -=- W”; else if (j <= 315 ) return +i + “° -=- WNW”; else if (j <= 337.5) return +i + “° -=- NW”; else return +i + “° -=- NNW”; })(input).

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