Arcus/Roll/Shelf And Morning Glory Clouds

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Arcus/Roll/Shelf And Morning Glory Clouds

Postby @weather_wa » Wed Aug 08, 2012 11:15 pm

An arcus cloud is a low, horizontal cloud formation. Roll clouds and shelf clouds are the two types of arcus clouds. A shelf cloud is usually associated with the leading edge of thunderstorm outflow; roll clouds are usually formed by outflows of cold air from sea breezes or cold fronts in the absence of thunderstorms.


http://en.wikipedia.org/wiki/Arcus_cloud

Morning Glory clouds:

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.


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

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Re: Arcus/Roll/Shelf And Morning Glory Clouds

Postby @weather_wa » Tue Oct 09, 2012 2:39 pm

Gliders on cloud nine over Morning Glory:

http://www.weatherzone.com.au/news/glid ... lory/22628

By Chrissy Arthur, Tuesday October 9, 2012

Glider pilots from around Australia are hoping for another few weeks of ideal conditions to 'ride' the rare Morning Glory cloud in north-west Queensland's Gulf of Carpentaria.

It is the only place in the world where the meteorological phenomenon can be reliably predicted and is seen every year during September and October.

Lyn Battle from Sweers Island, in the Gulf, says this year's clouds have been spectacular and pilots say it is the ultimate experience to glide on one.

"We had one a couple of weeks ago and we got on to the guys at the weather bureau and they were able to look at the satellite pictures," she said.

"It stretched from north of Karumba, across Sweers, all the way across the Gulf to Groote and almost up as far as Gove.

"That's about 1,000 kilometres, that's a long cloud."

She says it is rare to see.

"We've had some very spectacular clouds this year, better than last year," she said.

"We've had some from the south, which is very unusual and it's all to do I think with the early humidity, which bodes for a good wet season.

"It's become very popular - I was in Burketown the other day and there was a whole range of gliders and ultralight-type aircraft.

"There's a Japanese film crew back in town again."

- ABC

The Phantom
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Re: Arcus/Roll/Shelf And Morning Glory Clouds

Postby @weather_wa » Tue Oct 09, 2012 2:39 pm


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