I think it was the WeatherMaster one that I checked out a while ago, it was so over the top I thought it might be used by weather men when they didn't have a forecast. And/or required a degree in meterology to use properly. It was certainly an exhaustive review of all things weather! So if you are making one take this as a suggestion to make it easier or more simple.
I've made up some simple tables in the table generator for etools which works fine for me, it would be nice if someone with knowledge in that area would create some better weather tables.