About This Station
The station is powered by a combination of data from two Oregon Scientific weather stations (a WMR200 and a WMR928) plus a series of '1-wire' sensors from Hobby-Boards, including an Inspeed based anemometer. The Oregon Scientific data is collected every few seconds 24/7 by an RFXCOM receiver and recorded by Meteohub software. 1-wire data is updated to Meteohub once a minute (including wind readings based on samples taken much more frequently) using software we have written ourselves and OWFS running on the same computer as Meteohub.
In normal running, Weather Display software, takes the data from Meteohub for further processing and analysis, updating this site every 5 minutes. Both Weather Display and Meteohub run on low energy computers (~5W each).
If for any reason Weather Display is not running, the home page automatically switches to a reduced set of live data uploaded every 15 minutes 24/7 by Meteohub itself. When Weather Display is later re-started, it first catches up with data that was recorded by Meteohub while it was not running.
Both the WMR200 and WMR928 stations comprise of anemometer, rain gauge and thermo-hydro sensor situated as best we can.
The main temperature and humidity sensor is mounted in a DIY 'daytime' FARS (Fan Aspirated Radiation Shield) i.e. within an enclosure designed to prevent direct exposure of the sensor to the suns rays and ventilated by a small solar powered fan. The sensor was moved into the FARS on July 19th 2008 (some of the 'high' temperatures before that date are likely to be at least 1 and maybe 2 degrees C overstated).
The main anemometer is an Inspeed Vortex plus Inspeed e-Vane, linked to the 1-wire system via a Hobby-Boards controller. The Inspeed is mounted on a 10m mast. Wind readings are checked once a second, with the gust being calculated as the speed over the previous 3 seconds. Once a minute the windspeed (i.e. average over the whole minute) and the maximum 3 second gust during the minute are sent to Meteohub. If for some reason there a problem with the 1-wire system, the anemometer reported to the website by Weather Display automatically switches to one of the OS anemometers running on a lower mast nearby.
Prior to 11:26am on 29th August 2009 the main anemometer was an OS one (initially WMR928, later WMR200) mounted on a 5m mast. Prior to 6th September 2008 the OS anemometer was only at 2m, so wind averages and high speeds before that date are probably on the low side.
The website's pressure reading is from a Hobby-Boards 1-wire device, reporting to a resolution of 0.1 hPa. Prior to 11:26am on 29th August 2009 pressure readings were provided by the WMR928, with a resolution of 1 hPa.
There are also a number of extra temperature sensors, one of which is used to produce "Temp in a Jar" based solar readings, and night time cloud estimation.
A Panasonic BL-C140 webcam points SSW, a view which includes the island of Rum in the distance. An image from the camera, complete with time stamp and weather data added by Weather Display, is uploaded every 5 minutes.
Latitude: 57° 9' 17" N
Longitude 6° 5' 27" W
Altitude: 100m
Aspect: The site is sheltered by Ben Cleat (277m) & Ben Meabost (345m), reducing wind exposure between W and N.
About This Location
We are in Elgol on the Isle of Skye.
Why "24" Elgol?
Elgol is a crofting township. Crofts have numbers. We are on croft 24.
About This Website
This site is based around a template design by CarterLake.org with PHP conversion by Saratoga-Weather.org.
Special thanks go to Kevin Reed at TNET Weather for his work on the original Carterlake templates, and his design for the common website PHP management.
Special thanks to Mike Challis of Long Beach WA for his wind-rose generator, Theme Switcher and CSS styling help with these templates.
Special thanks go to Ken True of Saratoga-Weather.org for the AJAX conditions display, dashboard and integration of the TNET Weather common PHP site design for this site.
Template is originally based on Designs by Haran.
This template is XHTML 1.0 compliant. Validate the XHTML and CSS of this page.