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http://www.collthings.co.uk/2008/06/10-very-rare-clouds.html
"Mammatus are pouch-like cloud structures and a rare example of clouds in sinking air."
Back in my teens, I saw this formation over Lake Michigan. There was lightning, and the sky reminded me of the cheaper foil-like old fireplaces with pretend fire -- the kind fireplace stores had as demos? The second picture down is close to what we saw.
I thought it was northern lights until I saw a photo of northern lights. Now...I wanna see northern lights!
http://tinyurl.com/5n3zdu
"A roll cloud is a low, horizontal tube-shaped arcus cloud associated with a thunderstorm gust front, or sometimes a cold front. Roll clouds can also be a sign of possible microburst activity."
I have seen this more than once driving north on US 35 toward Dallas/Ft. Worth. In Texas, so far they have all been dark beneath but with a clear area between them and the thunderstorm clouds coming up behind them.
http://tinyurl.com/57dqva
"A shelf cloud is a low, horizontal wedge-shaped arcus cloud, associated with a thunderstorm gust front (or occasionally with a cold front, even in the absence of thunderstorms).
"Unlike a roll cloud, a shelf cloud is attached to the base of the parent cloud above it (usually a thunderstorm)."
Blue Northers look like that. It used to be late November we'd see it, but we saw at least one early in November last year. It was dark like the first picture, but not black like the one further down the screen.
http://tinyurl.com/62ykvx
So -- I've seen three rare cloud types so far in my life! If these are rare -- is that a good score or a bad score?
"Mammatus are pouch-like cloud structures and a rare example of clouds in sinking air."
Back in my teens, I saw this formation over Lake Michigan. There was lightning, and the sky reminded me of the cheaper foil-like old fireplaces with pretend fire -- the kind fireplace stores had as demos? The second picture down is close to what we saw.
I thought it was northern lights until I saw a photo of northern lights. Now...I wanna see northern lights!
http://tinyurl.com/5n3zdu
"A roll cloud is a low, horizontal tube-shaped arcus cloud associated with a thunderstorm gust front, or sometimes a cold front. Roll clouds can also be a sign of possible microburst activity."
I have seen this more than once driving north on US 35 toward Dallas/Ft. Worth. In Texas, so far they have all been dark beneath but with a clear area between them and the thunderstorm clouds coming up behind them.
http://tinyurl.com/57dqva
"A shelf cloud is a low, horizontal wedge-shaped arcus cloud, associated with a thunderstorm gust front (or occasionally with a cold front, even in the absence of thunderstorms).
"Unlike a roll cloud, a shelf cloud is attached to the base of the parent cloud above it (usually a thunderstorm)."
Blue Northers look like that. It used to be late November we'd see it, but we saw at least one early in November last year. It was dark like the first picture, but not black like the one further down the screen.
http://tinyurl.com/62ykvx
So -- I've seen three rare cloud types so far in my life! If these are rare -- is that a good score or a bad score?
