If shouted at the sky during the night, it will cause aurora (also known as Northern Lights) to appear.

Depending on the race used, the shout will sound like 'Lok Voh Tor' rather than 'Lok Vah Koor' when used.

Clear Skies does not appear to work in ash-covered areas of Solstheim, e.g.

Using this in a city with overcast weather will change the weather to sunny.

Clear Skies also can be used to farm fish and insects with its stagger effect.

Clear Skies cannot be used indoors, hence this shout cannot substitute completely for Unrelenting Force. The latter shout, however, does not remove weather effects. In terms of lore representation, the Thu'um dispels weather effects by dispersing clouds with propelled air therefore, Clear Skies is a 'weaker' form of Unrelenting Force. This may be a glitch or bug in terms of gameplay.

All three levels of Clear Skies can be used to stagger enemies in a fashion similar to the first/second level of the shout Unrelenting Force, or the first word alone may be used as a quick stagger comparable to the stagger inflicted by a power attack but on multiple opponents.

It appears to be able to prematurely end Alduin's shout, which he uses to bring fireballs crashing down from the sky, by clearing the sky of the swirling vortex.

If one was missed, go back outside High Hrothgar and read the words on the floor by the fire pit.

It is possible to just learn one word and carry on to the Throat of the World.

This shout is obtained from the Greybeards after having finished the quest ' Alduin's Wall.'

Koor – Clears up the weather for 60 seconds.

Vah – Clears up the weather for 40 seconds.

Lok – Clears up the weather for 20 seconds.

The stats for the amount of effect time are: Using more than just one word causes the weather to remain clear for longer, at a greater recharge time. Using this Shout removes all weather effects (rain, snow, etc.), and is needed to remove the wind barrier between High Hrothgar and the path to the Throat of the World.

Clear the skies world quest