A few years ago, Frank collected a variety of weather-related tools for Google Earth and put them into a nice package. Since then, a few of those tools have disappeared and a few new ones have been added, so I've rebuilt the collection with those changes made.
Two of the big contributors to the old file were GUIweather and WeatherBonk, and both sites are now completely gone. They both provided some excellent data, so it's quite a shame that they're gone. However, we've now added data from the World-Wide Lightning Location Network and NASA Goddard's TRMM Project.
If you already have a copy of the old network link, it should automatically refresh with the new information. Either way, you can download the KMZ file here.
If you have other valuable data that you think should be included, please leave a comment and include a link to their KML/KMZ data that we can include.