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Astronomy Picture of the Day -- Roll Cloud Over Wisconsin
NASA ^
| August 31, 2011
| (see photo credit)
Posted on 08/31/2011 3:15:06 AM PDT by SunkenCiv
Explanation: What kind of cloud is this? A type of arcus cloud called a roll cloud. These rare long clouds may form near advancing cold fronts. In particular, 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. Roll clouds may actually have air circulating along the long horizontal axis of the cloud. A roll cloud is not thought to be able to morph into a tornado. Unlike a similar shelf cloud, a roll cloud is completely detached from their parent cumulonimbus cloud. Pictured above, a roll cloud extends far into the distance as a storm approached in 2007 in Racine, Wisconsin, USA.
(Excerpt) Read more at 129.164.179.22 ...
TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: apod; astronomy; science; wisconsin
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1
posted on
08/31/2011 3:15:12 AM PDT
by
SunkenCiv
To: brytlea; cripplecreek; decimon; bigheadfred; KoRn; Grammy; married21; steelyourfaith; Mmogamer; ...
Wikipedia? Gettin' lazy, aren't they? :')
2
posted on
08/31/2011 3:16:09 AM PDT
by
SunkenCiv
(It's never a bad time to FReep this link -- https://secure.freerepublic.com/donate/)
To: SunkenCiv
I didn’t know they were rare, I’ve seen one before and it was strange.
3
posted on
08/31/2011 3:29:41 AM PDT
by
Clintons Are White Trash
(Lynn Stewart, Helen Thomas, Rosie ODonnell, Maureen Dowd, Medea Benjamin - The Axis of Ugly)
To: SunkenCiv
Somewhere around in my computer, I have pictures of the only roll cloud that I have seen, taken in ‘05.
To: SunkenCiv
I would love to see one of those in person.
5
posted on
08/31/2011 4:04:45 AM PDT
by
VanDeKoik
(1 million in stimulus dollars paid for this tagline!)
To: Clintons Are White Trash; rightly_dividing
At first glance it looked to me like a wall of ice, as if this town were much further north. :’)
6
posted on
08/31/2011 4:08:25 AM PDT
by
SunkenCiv
(It's never a bad time to FReep this link -- https://secure.freerepublic.com/donate/)
To: VanDeKoik
Looks like winter rolling in though. :’)
7
posted on
08/31/2011 4:09:32 AM PDT
by
SunkenCiv
(It's never a bad time to FReep this link -- https://secure.freerepublic.com/donate/)
To: SunkenCiv
I wouldn't call this one a roll cloud but I caught this one twisting overhead a week or so back.
8
posted on
08/31/2011 4:20:50 AM PDT
by
cripplecreek
(The GOP has been "moderated" into a coma.)
To: cripplecreek
Nice pic CC. I need a better camera. What do you use?
9
posted on
08/31/2011 4:38:44 AM PDT
by
jimfree
(In 2012 Sarah Palin will have more quality executive experience than Barack Obama.)
To: cripplecreek
Nice pic CC. I need a better camera. What do you use?
10
posted on
08/31/2011 4:40:55 AM PDT
by
jimfree
(In 2012 Sarah Palin will have more quality executive experience than Barack Obama.)
To: jimfree
I’m using a Canon EOS rebel.
11
posted on
08/31/2011 4:42:15 AM PDT
by
cripplecreek
(The GOP has been "moderated" into a coma.)
To: SunkenCiv
Interesting! Mut I would rather gaze at the stars.
Thanks, Civ!
To: SunkenCiv
13
posted on
08/31/2011 5:26:37 AM PDT
by
JoeProBono
(A closed mouth gathers no feet)
To: SunkenCiv
Truth be known..these are alien constructed conduits through which their aircraft can penetrate our atmosphere. They can then do their abductions and other hideous acts.I have established an Alien Observation Corps. We are diligently watching the sky!
We must keep our eyes on those Rolls!
14
posted on
08/31/2011 5:34:00 AM PDT
by
Young Werther
(Julius Caesar said "Quae cum ita sunt. Since these things are so.".)
To: cripplecreek; JoeProBono
That looks like a Van Gogh painting, CC. It’s gorgeous.
I hope that JoeProBono colorizes it for you. [for me...]
15
posted on
08/31/2011 5:42:47 AM PDT
by
TheOldLady
(FReepmail me to get ON or OFF the ZOT LIGHTNING ping list.)
To: JoeProBono
LOL! Great one. Guy’s about 18’ tall though, isn’t he?
16
posted on
08/31/2011 5:44:49 AM PDT
by
TheOldLady
(FReepmail me to get ON or OFF the ZOT LIGHTNING ping list.)
To: SunkenCiv
They should go back to interactive constellation images for a while. What part of astronomy don’t they understand?
Apparently the “astro” part.
17
posted on
08/31/2011 5:48:37 AM PDT
by
TheOldLady
(FReepmail me to get ON or OFF the ZOT LIGHTNING ping list.)
To: TheOldLady
LOL! Great one. Guys about 18 tall though, isnt he? Maybe it's Loki.
18
posted on
08/31/2011 5:49:15 AM PDT
by
COBOL2Java
(Obama is the least qualified guy in whatever room he walks into.)
To: TheOldLady
19
posted on
08/31/2011 6:00:55 AM PDT
by
JoeProBono
(A closed mouth gathers no feet)
To: JoeProBono; cripplecreek
Aw, Joe! You remembered my favorite color too. Thank you so much.
Thanks again, CC.
20
posted on
08/31/2011 7:17:51 AM PDT
by
TheOldLady
(FReepmail me to get ON or OFF the ZOT LIGHTNING ping list.)
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