Astounding ‘alien-like’ clouds are spotted in the sky above Melbourne Airport – so what exactly are they?
- Residents left stunned after discovering bizarre cloud formation in Melbourne
- Photos uploaded to Facebook with social media users guessing type of clouds
- Some offered tongue-in-cheek responses saying it looked like popcorn clouds
- The formation is known as a mattamus cloud
Residents have been left stunned after discovering a bizarre cloud formation taking shape in the sky.
The strange clouds were spotted forming over Melbourne Airport on Thursday evening.
The clouds appeared to droop and clump together to form little pouches.

Residents have been left stunned after discovering a bizarre cloud formation taking shape in the sky
Photos of the clouds were uploaded to Facebook, where social media users were left in awe by the eye-catching formations.
‘Absolutely amazing,’ one person wrote.
Another added: ‘My favourite type of clouds to see .. lovely photos’.
Some made tongue-in-cheek attempts to identify the formation.
‘A technical term would be popcorn clouds!!!’ one wrote.
‘Like the movie……”Cloudy With A Chance Of Meatballs” lol’, another social media user said.
The formation is known as a mattamus cloud – a term which comes from the Latin word ‘mamma’ and translates to ‘udder’ or ‘breast’.

The strange clouds were spotted forming over Melbourne Airport on Thursday evening
The Bureau of Meteorology explains the clouds are formed in sinking air and often precede a downpour, thunderstorm or hailstorm.
‘As air descends the water in the air evaporates,’ BoM explains on its website.
‘Under certain atmospheric conditions this evaporation results in an increased downward movement of air, which drags the cloud down.
‘The result of this is the sagging protrusions from the underside of a cloud known as mammatus.’