UK Snow Map uses crowd-sourced #uksnow tweets to draw an up-to-the-minute map of where it is currently snowing in the UK.
To join in, tweet and include the following;
- the hashtag #uksnow,
- your location (as the first-half of your postcode or by geotagging your tweet),
- and rate the snow that is falling out of ten (0/10 is nothing - 10/10 is a blizzard).
Don't forget to tweet your #uksnow photos and they will show up on the photo-stream.