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Rigadog
08-27-2009, 08:38 AM
Mysterious Tubular Clouds Defy Explanation Published on 08-26-2009 Email To Friend (javascript:emailthis("17041");) Print Version (javascript:printthis("17041");)
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Source: Wired (http://www.wired.com/wiredscience/2009/08/morninggloryclouds/)
http://www.wired.com/images_blogs/wiredscience/2009/08/morninggloryclouds.jpg
These long, crazy-looking clouds can grow to be 600 miles long and can move at up to 35 miles per hour, causing problems for aircraft even on windless days.
Known as Morning Glory clouds, they appear every fall over Burketown, Queensland, Australia, a remote town with fewer than 200 residents. A small number of pilots and tourists travel there each year in hopes of “cloud surfing (http://cloudappreciationsociety.org/mg1/)” with the mysterious phenomenon.
Similar tubular shaped clouds called roll clouds (http://antwrp.gsfc.nasa.gov/apod/ap060117.html) appear in various places around the globe. But nobody has yet figured out what causes the Morning Glory clouds.
This shot was captured by photographer Mick Petroff from his plane near Australia’s Gulf of Carpenteria.

Pirate-at-heart
08-27-2009, 08:49 AM
that is where the green ants dream.

Mrleft8
08-27-2009, 08:59 AM
Shane farts.... :D

TimH
08-27-2009, 09:24 AM
weather modification experiments.

Henning 4148
08-27-2009, 03:06 PM
It is impressive but it is well researched and explained.

Google "gravity waves morning glory".

Flying Orca
08-27-2009, 03:32 PM
that is where the green ants dream.

Green ants, my eye - it's the flaming jaguars, waiting patiently for 2012 to arrive. :eek:

Flying Orca
08-27-2009, 03:33 PM
It is impressive but it is well researched and explained.

Google "gravity waves morning glory".

All I got was some guy going on about what he saw after eating a bunch of seeds. :D

WX
08-27-2009, 05:30 PM
http://www.wired.com/images_blogs/wiredscience/2009/08/morninggloryclouds.jpg
Known in the Gulf country as Morning Glory. They roll in in the morning from off the Gulf.

WX
08-27-2009, 05:32 PM
http://www.morninggloryaustralia.com/

stevebaby
08-27-2009, 05:57 PM
that is where the green ants dream."...in the land where the crow flies backwards,
and the pelican builds its nest."

Bob (oh, THAT Bob)
08-27-2009, 06:59 PM
I saw roll clouds once in the midwest USA. The rolls were all immediately adjacent to each other, not the large gaps as in the photo above. Very interesting.

The Bigfella
08-27-2009, 07:08 PM
The glider pilots love them.

skuthorp
08-28-2009, 08:23 AM
We get them over Port Philip Bay at times. I've heard the explanation but forget it. Something about the rise and fall of warm wet air. Don't they look great from above?