Unusual cloud formation in the Barents Sea

[HiThere]

Apparently this is a result of the meeting of cold and varm air, but unusual to observe. It's from an article found here (norwegian):

_http://www.nrk.no/nyheter/distrikt/troms_og_finnmark/1.7710978

 

[Gaby]

It looks like the clouds described here:

http://www.sott.net/articles/show/230195-Our-changing-atmosphere-Photos-and-video-footage-of-gigantic-rotating-Roll-Clouds-

The roll cloud is a subtype of arcus cloud - the funnel is horizontal and does not connect to the ground.The other subtype of arcus is a shelf cloud, which also often appear to precede storm fronts.

These rare long clouds sometimes form near advancing cold fronts. A downdraft from an advancing storm front can cause moist warm air to rise, cool below its dew point, and so form a cloud. When this happens uniformly along an extended front, a roll cloud may form.

 

[seek10]

I hope disclosure gang will not say there are UFO's in it . ;)

 

[Kaigen]

Can't you see... it is the wave, The Wave... we are going to dye... ;D ;D ;D

 

[The_Seeker]

This is really cool looking. I wonder if anyone on the site can further explain the occurrence of this type of cloud. I have seen shelf clouds before, with a storm front behind them, but never anything all by its self. I am interested to know if anyone else has ever seen this cloud type before?

The_Seeker

 

[Lilou]

I have seen what I think is a shelf cloud, and some of those huge clouds that look like a wash board, but nothing like the above. However, I did save some photos of strange clouds, the first two were taken in Iowa. The last in Kansas.

 

[cubbex]

I've been inspired by those images!!

 

[rrraven]

-http://en.wikipedia.org/wiki/Morning_Glory_cloud

The Morning Glory cloud is a rare meteorological phenomenon occasionally observed in different locations around the world. The southern part of Northern Australia's Gulf of Carpentaria is the only known location where it can be predicted and observed on a more or less regular basis. The settlement of Burketown attracts glider pilots intent on riding this phenomenon.
A Morning Glory cloud is a roll cloud that can be up to 1,000 kilometres (620 mi) long, 1 to 2 kilometres (0.62 to 1.2 mi) high, often only 100 to 200 metres (330 to 660 ft) above the ground and can move at speeds up to 60 kilometres (37 mi) per hour. Sometimes there is only one cloud, sometimes there are up to eight consecutive roll clouds.The Morning Glory is often accompanied by sudden wind squalls, intense low-level wind shear, a rapid increase in the vertical displacement of air parcels, and a sharp pressure jump at the surface. In the front of the cloud, there is strong vertical motion that transports air up through the cloud and creates the rolling appearance, while the air in the middle and rear of the cloud becomes turbulent and sinks.

The cloud can also be described as a solitary wave or a soliton, which is a wave that has a single crest and moves without changing speed or shape.