Thank you for the kind words.
The estimates are described here (http://www.yr.no/informasjon/1.6498765). This is in Norwegian but guessing from your name you may be able to understand most of it. If not, reply and I’ll translate. Hope this helps. And if you have any suggestions that might improve the algorithm, they are of course welcome. One of the great advantages about being free is all the valuable feedback we get.