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Altostratus Undulatus Captured

4 May 2015, 07:01 UTC
Altostratus Undulatus Captured
(200 words excerpt, click title or image to see full post)

If you read last week’s preview, and didn’t look up the term, you might have been expecting to hear about how I captured some type of flying snake or lizard. We’ve got lots of snakes and lizards here in Arizona, but thankfully none of them fly.
Altostratus undulatis is a not-often-seen type of cloud formation. I wouldn’t say they’re “rare,” but they never last for long. So unless you’re a cloud-watcher like me, always out on the deck enjoying the sunset, they can be easy to miss.
These clouds are commonly known as billow clouds, wind-row clouds, or wave clouds. The photo above was shot just after sunset on February 19, 2015. The “layers” are actually “rows” of clouds stretching off into the distance. The perspective makes them look vertically stacked. Click on it to open a larger image and you’ll see a lot more detail.
A Google image search reveals hundreds of photos of Altostratus Undulatis, all unique, but all sharing the characteristic rows of clouds. Take a look at some of the beautiful examples here.
The name altostratus undulatis is a combination of two meteorological terms. Altostratus refers to a layer of clouds at mid-altitudes (as opposed to ...

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