Any mountain Flyers here? Ice Question 4 you
02-26-2010, 11:56 AM
#2
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Joined APC: Jun 2008
Posts: 206
Not a mountain flyer, but it's generally on the upslope side during the summer time. The quick updrafts supercool any moisture and the temperatures of the supercooled moisture can reach -30F.
It's also not generally a problem for smaller aircraft because it only happens at higher altitudes, and during the winter all the visible moisture is already frozen.
It's also not generally a problem for smaller aircraft because it only happens at higher altitudes, and during the winter all the visible moisture is already frozen.
02-28-2010, 10:17 AM
#3
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Joined APC: Feb 2010
Posts: 32
If your getting ice during mountain wave activity your likely in a lenticular. I think in that situation ice would be the least of your problems. The turbulence might even shake it off. 
To me it is a bit like worrying about ice while caught in a thunderstorm.
I'm taking this from a GA perspective though, might be totally different at altitude in a jet.
To me it is a bit like worrying about ice while caught in a thunderstorm. I'm taking this from a GA perspective though, might be totally different at altitude in a jet.
02-28-2010, 11:48 AM
#4
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Posts: 317
Originally Posted by Codyjp
If your getting ice during mountain wave activity your likely in a lenticular.
Oh and whats up cody
02-28-2010, 07:09 PM
#5
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Posts: 32
Originally Posted by shdw
AHHH hah! I was right. Would it be accurate to assume clear air ice can form on the upwind side, at a lower altitude, then the lenticular cloud? That is, the side between the lenticular formation and the mountain range where the air is rising up in the wave and being supercooled as the other poster said.
Oh and whats up cody
Oh and whats up cody
These discussions are neat and fun for meteorology classes and hanger chat but have little application to any type of real world flying. Never once have I thought to myself, "dang, I hope I don't get any ice while I have my ass handed to me in the mountain wave!"
Nope, I'm back at the airport having a coffee and doing some ground work.
03-01-2010, 12:13 PM
#6
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Joined APC: Jun 2009
Posts: 317
Originally Posted by Codyjp
First, answer the question; Who cares? your going to be getting the crap knocked out of you anyway?
These discussions are neat and fun for meteorology classes and hanger chat but have little application to any type of real world flying. Never once have I thought to myself, "dang, I hope I don't get any ice while I have my ass handed to me in the mountain wave!"
Nope, I'm back at the airport having a coffee and doing some ground work.
These discussions are neat and fun for meteorology classes and hanger chat but have little application to any type of real world flying. Never once have I thought to myself, "dang, I hope I don't get any ice while I have my ass handed to me in the mountain wave!"
Nope, I'm back at the airport having a coffee and doing some ground work.
Obviously, I was wrong. Thanks for the insight.
03-01-2010, 01:14 PM
#7
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Joined APC: Sep 2009
Position: Left seat of a Jet
Posts: 514
Originally Posted by makeitra
Where do you normally find the majority of ice on a mountain wave?
You can have clouds smooth as silk over mountain ranges and pick up enough ice to get yourself into trouble as well.
03-01-2010, 08:46 PM
#8
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Posts: 32
Originally Posted by shdw
I'm an east coast guy, our mountain waves are kind of like the waves at the kiddy pools in Disney world versus pipe masters. To be completely honest, I had no idea that it was that turbulent. I've read articles about flying wave lift along the Cliffs of Dover in Europe, so I thought it was relatively calm except fast moving vertical air. Similar to a 50 knot head wind that lacks turbulence.
Obviously, I was wrong. Thanks for the insight.
Obviously, I was wrong. Thanks for the insight.
I guess I'd call your stuff ridge lift if I had to name it.
To answer the ice question, I would think the up slope would have the most ice since the moisture hasn't had an opportunity to freeze into solid ice pellets yet, which is what it probably would have done by the time it is on they way down. Regardless, this discussion doesn't seem to practical to me.
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