Tuesday, March 21, 2017

Random Images And Videos Of Really Cool Weather Phenomenon

Kelvin-Helmholtz clouds over Churchchrist, New Zealand.
I often run across images and videos on social media about weather that doesn't exactly fit what I want to tell you about, but are cool nonetheless.

So why not share them anyway?

The first image is of a rather rare cloud formation and one of my favorites: Kelvin-Helmholtz clouds. The photo was taken at an unspecified date over Christchurch, New Zealand.

The clouds, as you can see, look like breaking ocean waves. They are named for Lord Kelvin and Hermann von Helmholtz, who studies the physics of the atmospheric instability that creates the clouds.

The clouds form when two different layers of the atmosphere move at different speeds. The upper layer of air is moving faster than the lower levels of the air when these clouds form. The higher winds in the upper layr will sometimes scoop the top of the cloud layer and form these wave-like clouds.


A gorgeous thunderstorm over Grenada, Spain
Kelvin-Helmholtz clouds are not dangerous, and don't produce severe weather. But they are a sign that the air is very unstable, and aircraft flying through areas with these clouds can get in trouble.

I've never personally witnessed Kelving-Helmholtz clouds, and being a weather geek, seeing the clouds is definitely on my bucket list.

The next photo in this post is not a terribly unusual weather phenomenon, but it's a gorgeous photo of a thunderstorm over Granada, a Spanish city in the foothills of that country's Sierra Nevada mountains.  

The Alhambra Palace, a luxury hotel, is in the foreground. Between that building and those dramatic clouds, it makes for just a gorgeous photo.

A dramatic looking but non-lethal avalanche in Juneau, Alaska recently
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It was taken by Jose Luis Hens Terron.

The next photo was taken on March 3 in Juneau, Alaska.

Amid cold, blue skies, an avalanche descended from the steep mountains surrounding the city. The avalanche caused no deaths or injuries, and damage was minimal.

Pretty cool image of such a snow slide.

Finally, we have some cool images of severe thunderstorms developing in Nebraska about a week and a half ago.

The satellite feed here is mesmerizing, if you are a weather geek like me.

I'll have more images in future posts, because they're piling up left and right, but here's that Nebraska storm outbreak video:


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