which type of cloud was it that jesus ascended into and what kind of cloud will he be riding when he returns?
The resurrected ascended Jesus was taken up into the clouds. - Acts of the Apostles 1:9
When we look up at the sky we can see clouds and clouds can create a cover of the sky.
Thus, when resurrected Jesus ascended the clouds, cloud cover, made him invisible to on-lookers.
Don't forget John 14:19 that the world would behold (see) Jesus No more.
So, Just as Jesus' ascension became invisible to on-lookers, his return will Not be physically seen.
The 'words', Jesus' 'sword-like executional words' will rid the Earth of the wicked - Isaiah 11:3-4; Revelation 19:14-15