
1) Becomes blurry 2) Cumuli 3) Debut single 4) Folk ballad 5) Obscures 6) Planes may bisect them 7) Puffy sky sights 8) Rain omens 9) Signs of an impending storm 10) Signs of impending rain 11) Silver-lining items 12) Sky sights 13) Storm warnings 14) Sun blockers 15) Symbols of impending trouble 16) They keep people off beaches
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https://www.crosswordclues.com/clue/clouds

1) Bedims 2) Fumes 3) Vapours
Found on
https://www.crosswordclues.com/clue/clouds

(from the article `Mitchell, Joni`) With each successive release, Mitchell gained a larger following, from Clouds (which in 1969 won a Grammy Award for best folk performance) to the ...
Found on
http://www.britannica.com/eb/a-z/c/100

Clouds are collections of water (in liquid or ice phase) in the atmosphere that are often classified by their shape and height. Every day vast amounts of water are evaporated from the Earth's surface and rise into the atmosphere as water vapor. Water vapor is invisible, but if its particles combine ...
Found on
http://www.daviddarling.info/encyclopedia/C/clouds.html

small differences of colour in the record surface somewhat similar to the appearance of clouds in the sky
Found on
http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=806-13-92

When air ascends it expands and cools and if sufficiently moist a cloud will form. Visible clouds are of several recognisable types depending on the process of their formation.
Found on
http://www.encyclo.co.uk/local/20160

Rainy days bring benefit.
Found on
http://www.nationsonline.org/oneworld/Chinese_Customs/

Water evaporating from the Earth's surface is held as a vapour in rising warm air
Found on
http://www.quick-facts.co.uk/weather/glossary.html

a suspended mass of water vapor in the atmosphere. Clouds can be categorized into two general groups
Found on
http://www.tsgc.utexas.edu/stars/metgloss.html

water vapor that condenses in the sky
Found on
https://sciencetrek.org/sciencetrek/topics/weather/glossary.cfm

A visible collection of minute particle matter, such as water droplets and/or ice crystals, in the free air. A cloud forms in the atmosphere as a result of condensation of water vapour. Condensation nuclei, such as in smoke or dust particles, form a surface upon which water vapour can condense.AltocumulusComposed of flattened, thick, gray, globular...
Found on
https://www.encyclo.co.uk/local/20687

Clouds, like fog, are caused by condensation of water vapour in the air when it is cooled.
Found on
https://www.encyclo.co.uk/local/20784
No exact match found.