Data is captured by personal wireless weather equipment. Data from the sensors is sent to a receiver then on to a computer via USB.
The computer sends the data via WiFi to a router then on to the internet where it is then formatted into what you see above.
A new set of readings are captured every 40 seconds, the webpage looks for an update every 5 seconds.
Quick conditions summary that will refresh on each page load. To use this as an avatar right click on the image and copy the url.