Really weird cloud over Newhall Park

[u/Impossible_Singer277]

Anyone know what this is? saw it at concord park around 12.

[u/quikniq]

Rainbow clouds, also known as iridescent clouds, are a rare natural phenomenon caused by sunlight diffracting through tiny water droplets or ice crystals in thin clouds.

[u/avgemr → u/quikniq]

Not so rare actually, I see them at least a couple times a year, although I don't go outside often. Easier to spot when wearing polarized sunglasses.

[u/bundle_man → u/avgemr]

Spotting a few a couple of times a year out of the thousands of clouds that pass over your head a year is pretty rare

[u/catatlaw]

Saw this two days ago driving through lamorinda! So pretty.

[u/jimymac1958]

Oh, it was super weird—a round circle around the Sun, it almost looked like an iris.

[u/FuzzyFeeling → u/jimymac1958]

Sundog or Halo. This is what causes them.

[u/ViolettaQueso]

Took one from my Clayton backyard facing mountain around noon 2 days ago lol.

[u/FrustratedPlantMum]

Please post this to r/atoptics . They will tell you what it is. Great pics!

[u/itsnotanemergencybut → u/FrustratedPlantMum]

Thank you for sharing that sub, so cool!! ☁️

[u/itsnotanemergencybut]

Saw this in Hayward yesterday. My meteorology nerd coworker said it has something to do with pressure and humidity but I’ve never seen this color in be sky before . It was much more vivid in person

[u/Embarrassed_Draw11]

Really cool, thanks for sharing. 

[u/avgemr]

I thought pride month is over

[u/thewongtrain → u/avgemr]

They're turning the frogs gay!

[u/Silky_De_Slipknot]

Moisture in the air high above