Gravity Waves ( super cool )

[WarNipple]

http://www.youtube.com/watch?v=yXnkzeCU3bE

Now THAT is some trippy shit!

Gravity Wave Marked as: Featured
Time-Lapse of gravity wave action from the Tama, Iowa KCCI-TV webcam on 6 May 2007

A gravity wave is a vertical wave. The best example I can think of in describing what a gravity wave looks like is to think of a rock being thrown into a pond. Ripples or circles migrate from the point the rock hits the water. An up and down motion is created. With increasing distance from the point where the rock hit the water, the waves becomes less defined (the waves are dampening).

Now let's look at what a gravity wave is in the atmosphere. To start a gravity wave, a TRIGGER mechanism must cause the air to be displaced in the vertical. Examples of trigger mechanisms that produce gravity waves are mountains and thunderstorm updrafts. To generate a gravity wave, the air must be forced to rise in STABLE air. Why? Because if air rises in unstable air it will continue to rise and will NOT create a wave pattern. If air is forced to rise up in stable air, the natural tendency will be for the air to sink back down over time (usually because the parcel forced to rise is colder than the environment). The momentum of the air imparted by the trigger mechanism will force the parcel to rise and the stability of the atmosphere will force the parcel of air to sink after it rises (you have now undergone the first steps into creating a wave)...

 

[WarNipple]

Not a gravity wave, but cool none the less...

Mammatus clous... WTF

 

[01strimbullitt]

crazy....

 

[WarNipple]

I would start saying my prayers if I saw something like this... holy ****

 

[JiggaStyles09]

some of these look photoshopped IMO, but cool none the less. video was interesting as well.

 

[WarNipple]

None of those pictures are photoshopped, go research. When warm air fronts and cold air fronts colide they do crazy things... Supercell thunderstorms, waterspouts, all kinds of crazy shit.

 

[Antagon]

Some of the last ones look like people trying to poke their hands through our little atmosphere

 

[poopnut2]

Nature makes some crazy shit.

 

[DRTHV8R]

ive seen a Mammatus cloud b4 shit is nuts

 

[Jefe]

Post more! those are nuts!!!

 

[particleman]

those are awesome

 

[crazyj0n]

woaa theres none of those where i come from

 

[CHINI]

is it just me or would you guys be taking pictures. I am waiting to see zeus in one of the pictures striking lightning down on someone

 

[mrose75]

 

[MPRT_H8R]

all those pictures are amazing....great thread!!!!

 

[flowgoode]

Def. some crazy looking stuff....awesome none the less!

I took some pictues like that of a storm rolling in...gotta find them though.

 

[esqeddy]

wonderful pics

 

[Ghoust]

that is some amazing shiznit!

 

[FaYgOkRiS]

Nature makes some crazy shit.

Independanepper: ce day?

 

[Lightmare]

Wow, awsome shots!

I still wanna grow up to be a tornado chaser.