<p>Well, after a bit of research, I stumbled upon the following image:</p>

<p><a href="https://i.sstatic.net/vC3cJ.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/vC3cJ.jpg" alt="copyright Roger Edwards"></a></p>

<p>This is from a blog of two storm chasers Roger and Elke who I believe witnessed the same cloud formation as you. In the following link:</p>

<pre><code>http://stormeyes.org/latest/tag/left-moving-supercell/
</code></pre>

<p><strong>They refer to the formation as a 'rear flank arc cloud'.</strong></p>

<p>So in conclusion I believe, the formation is <strong>a kind of arcus cloud</strong>. You can learn more about arcus clouds on wikipedia by following the link: </p>

<pre><code>https://en.wikipedia.org/wiki/Arcus_cloud
</code></pre>

<p>I hope I have been of help.</p>

CC BY-SA 4.0
2018-05-10T23:31:37.840Z
Useful searching... but though it may or may not be an [arc cloud](http://glossary.ametsoc.org/wiki/Arc_cloud), it does not appear to be associated with any storm structure such as would entail a [rear-flank downdraft](https://en.wikipedia.org/wiki/Rear_flank_downdraft).  Thanks for the input!
JeopardyTempest
CC BY-SA 4.0
2018-04-27T13:15:48.397Z
2018-05-28T19:24:22.697Z
2018-05-28T19:24:22.697Z
Taimur
<p>These pictures were taken today in Oklahoma City and I am both baffled and curious as to what formation this may be. I was wondering if anyone had any idea?</p>

<p><a href="https://i.sstatic.net/zI74D.jpg" rel="noreferrer"><img src="https://i.sstatic.net/zI74D.jpg" alt="unknown cloud 1"></a></p>

<p><a href="https://i.sstatic.net/3mtUD.jpg" rel="noreferrer"><img src="https://i.sstatic.net/3mtUD.jpg" alt="unknown cloud 2"></a></p>

<p>Thank you!</p>

CC BY-SA 3.0
2018-04-27T04:18:21.027Z
About what time will help in sourcing radar and satellite data to match.  You're talking about the wide arc, yes?
JeopardyTempest
CC BY-SA 3.0
2018-04-27T12:02:59.543Z
It appears to me to possibly be either a gravity wave or an outflow boundary.  As @JeopardyTempest indicated, satellite and radar data would help.  If you don't know where to find that information, you could give us a date and approximate time and we may be able to.
DavidH
<meteorology><clouds>
Can someone help me identify this cloud formation?
jmr
# Can someone help me identify this cloud formation?

(Asked by: username_0 on 2018-04-26)

These pictures were taken today in Oklahoma City and I am both baffled and curious as to what formation this may be. I was wondering if anyone had any idea?

[![unknown cloud 1](https://i.sstatic.net/zI74D.jpg)](https://i.sstatic.net/zI74D.jpg)

[![unknown cloud 2](https://i.sstatic.net/3mtUD.jpg)](https://i.sstatic.net/3mtUD.jpg)

Thank you!

**Tags:** meteorology, clouds

> **Comments:**
> **username_1**: About what time will help in sourcing radar and satellite data to match.  You're talking about the wide arc, yes?  
> **username_2**: It appears to me to possibly be either a gravity wave or an outflow boundary.  As @username_1 indicated, satellite and radar data would help.  If you don't know where to find that information, you could give us a date and approximate time and we may be able to.  

---

## 1 answers

### Answer by username_3 on 2018-04-27. Score: 1 | Accepted answer

Well, after a bit of research, I stumbled upon the following image:

[![copyright Roger Edwards](https://i.sstatic.net/vC3cJ.jpg)](https://i.sstatic.net/vC3cJ.jpg)

This is from a blog of two storm chasers Roger and Elke who I believe witnessed the same cloud formation as you. In the following link:

```
http://stormeyes.org/latest/tag/left-moving-supercell/

```

**They refer to the formation as a 'rear flank arc cloud'.**

So in conclusion I believe, the formation is **a kind of arcus cloud**. You can learn more about arcus clouds on wikipedia by following the link:

```
https://en.wikipedia.org/wiki/Arcus_cloud

```

I hope I have been of help.

> **Comments:**
> **username_1**: Useful searching... but though it may or may not be an [arc cloud](http://glossary.ametsoc.org/wiki/Arc_cloud), it does not appear to be associated with any storm structure such as would entail a [rear-flank downdraft](https://en.wikipedia.org/wiki/Rear_flank_downdraft).  Thanks for the input!  

---

