[JoeProBono]

Mammatus Cloud Formations over Union Square Park<

Mammatus clouds in Iraq, April 2006

[cripplecreek]

Boobie clouds.

[JoeProBono]

[Right_in_Virginia]

Bump for later.

[aruanan]

If those were the clouds, they’re nothing new. I’ve seen them many times, most recently last week in Chicago.

[classified]

Looks like the inside of my old freezer

[Mr. K]

I don’t know what Rorschach would make of this but I think these pictures should be R rated

[DogBarkTree]

Looks like Union Square got teabagged.

[NYDave]

I live in South Western Queens and we had the same formations here. The sky was also a deep red color - quite beautiful. I wasn’t thinking, I should have snapped a cell phone picture. It would have made nice wallpaper for my phone. Oh well. As all of you here in NYC know, last night we had some terrific thunderstorms moving through the area.

[Miss Didi]

I saw them last night on the Upper East Side...everyone was on the sidewalk looking up snapping pictures. It was really breathtaking.

[frithguild]

Bush’s fault

[gorush]

We had a very similar sky here just last year...

[RichInOC]

[Wild Irish Rogue]

http://cloudappreciationsociety.org/ is a neat site .

Especially the photo gallery.

[SWAMPSNIPER]

It’s just all the stink condensing!

[Julia H.]

I call those “storm-a-comin’” clouds.

[SampleMan]

Very common in tornado alley. Those are not happy clouds.

[Global2010]

I have a dreams about the sky turning wierd and then it opens up and Jesus and the Saints go to battle and they are as big as far as the eye can see and all the world sees it.

The clouds remind me of that dream.

[Brother Cracker]

Bows and flows of angel hair,. And Ice-cream castles in the air,. And feather canyons everywhere,. I’ve looked at clouds that way

[Guenevere]

bttt

[chimera]

Mammatus clouds are formed by sinking air inside of thunder clouds. They look a little scary, but cooling air usually means a weakening storm, so they’re actually a good sign for avoiding stormy weather.