I recently added a connection about Cloud, Fog and Mist effects.
I limited its description to: WHS which OUV (partly) depends on Cloud, Fog and/or Mist effects

This is a limited number, we have now 7 (there may be 1 or 2 more).
However, there are many more WHS where these kind of effects are very significant, without being mentioned in the OUV. Think of the Greater Blue Mountains and their haze (otherwise they would not be called Blue), or Redwood (where the trees 'feed' or drink from the fog in dry summers).

Any ideas how to rephrase the description without opening a can of worms and letting every WHS near a coast or in a bad weather area in?

Water vapour effects?

As I understand it, the "blue haze" of the Blue Mountains (and elsewhere) isn't caused by "water vapour"
See Wiki - "The name Blue Mountains, however, was preferred[ and is derived from the blue tinge the range takes on when viewed from a distance. The tinge is believed to be caused by Mie scattering which occurs when incoming light with shorter wavelengths is preferentially scattered by particles within the atmosphere imparting a blue-greyish colour to any distant objects, including mountains and clouds. Volatile terpenoids emitted in large quantities by the abundant eucalyptus trees in the Blue Mountains may cause Mie scattering and thus the blue haze for which the mountains were named"

Regarding other ways of "capturing" WHS whhich have signnificant "Cloud" etc aspects
We could have a separate Connection for "Cloud Forests" - this would seem to be an acceptable alternative name for Tropical Rain Forests (but NOT "Temperate" ones?) -
https://en.wikipedia.org/wiki/Cloud_forest

Another possibility is "WHS containing life which depends on Fog Drip" - https://en.wikipedia.org/wiki/Fog_drip

We already have a Cloud Forest connection
It contains all different WHS than the new connection, so that's good. Redwood is included there.

I think Namib Sand Sea would be the only one with fog drip characteristics - the others are all about visual effects.

-
You were hoping to get Redwood in - "Dawson reported that in a study of northern California redwood forests, 34% of annual hydrologic input was from fog drip." (Wiki)
I would have to spend some time looking for a 3rd - Pacific US/Mexico, N Kenya and Peru/Chile seem possibles


I think Socotra also - the Dragon Blood tree "The ability to replenish succulent woody organs from atmospheric water and to survive long periods of drought from the internal supply distinguishes the behavior of this short-rooted arborescent monocot from the known strategies of deep-rooted trees in arid areas"

There seem to be 2 "types" of fog drip - direct intake from leaves and indirect via the "drip" of fog going into the ground and being taken up that way - either by the parent plant or seedlings

Great Solivagant. I added the Fog Drip connection and limited the Cloud, Fog, Mist one to visual effects being part of their OUV

Also Garajonay - I suspect that there are quite a lot more.
https://academic.oup.com/treephys/article/29/4/517/1640293

The Laurisilva of Madeira
https://whc.unesco.org/uploads/nominations/934.pdf

Redwood National and State Parks
http://www.shannontech.com/ParkVision/Redwood/Redwood8.html

Olympic National Park, another forest at the edge of the Pacific Ocean influenced by fog from the sea.