Version 1.80 of vrtool contains the all new weather routing module.
This beta release is still somewhat unstable. Hangs sometimes.
( remember save your desktop before messing with weather routing )
For more on vrtool weather routing module, go to this page.
http://www.tecepe.com.br/nav/vrtool/routing.htm
Installing
The software is available only in zip format (no installer yet)
1 - Download from http://www.tecepe.com.br/nav/vrtool/vrtool.zip
2 - terminate vrtool
3 - Unzip vrtool.exe in vrtool directory (overwrite previous version)