http://www.nexusmods.com/morrowind/mods/44184/?
This small mod adds looping winds for 6 weather types. You may have heard the winds in Duncans Atmospheric sound effects or MGSO, so if you use either of those mods you wont need this, as the sounds are plucked straight from Duncans mod.
The idea came as I was wandering the mainland of Tamriel Rebuilt, and realised how quiet everything was in comparison to Vvardenfel, which has several mods adding wildlife sounds and regional sound effects. I wanted some ambience in the mainland and came up with this quick mod.
Some minor ini tweaks required.