Cloudscape

A character can cast cloudscape on a single cloud or part of a cloud bank, usually from a nearby mountaintop or while flying. It causes 1,000 cubic feet of cloud per level of the caster to become solid enough to support any weight. The solidified clouds remain airborne and feel like a thick carpet.

A creature that falls onto the magically strengthened cloud sustains falling damage. An animal or individual that flies into the solidified cloud falls, stunned, for a round, and must make a successful Dexterity check to recover. A creature flying through a cloud at the moment the cloud solidifies is allowed a saving throw vs. petrifaction. Success means the creature escapes: failure means the creature is trapped as the cloud solidifies around it. However, as the cloud is porous, such creatures can continue to breathe until the spells duration elapses.

The solidified cloud itself continues to drift with the wind as usual. While the caster cannot use this particular spell to propel the cloud, a control winds spell can summon a great gust of air to turn the cloudscape into a unique flying conveyance easily enough.