Graphs showing predicted and measured UV Index at Lauder are updated at 15 minute intervals. Unlike the UVI predictions seen on TV, these include the effects of clouds. The most recent UVI is displayed, along with a corresponding behavioural message. These messages correspond to five intensity ranges, as recommended by Sunsmart and the Cancer Society of New Zealand. We plan to make similar data from other sites available in this way at a later date but currently data are downloaded from most instruments elsewhere only once per day.