1. Mick West

    Mick West Administrator Staff Member

    Yes it is, as per the OP:

     
  2. BigTBoom

    BigTBoom New Member

    Great site. If you're looking for older reference material, try translating Auguste Bravais "Memoire sur les Halos" (1847) or his follow up "Notice sur les Halos" (1851). Both are available on google books and have some good drawings of halos noted on the website.

    Also, I think I might have caught a stray sun dog on the left in the last pic too!
     
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  3. PeteSYD

    PeteSYD Member

    Persistent contrail above the Golden Pavilion, Kyoto, May 2014.

    It was a glorious day for contrails.
     

    Attached Files:

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  4. PeteSYD

    PeteSYD Member

    Denmark, 2005.
     

    Attached Files:

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  5. Trailblazer

    Trailblazer Moderator Staff Member

    Is this a fall-streak/hole punch cloud on the left? I've never seen one before, and this looks much less defined than the photos I've seen, but the shape looks right? Or perhaps more of a distrail left by a plane, which has spread out? Snapped out of a train window at Clapham Junction this morning:

    image.

    Lots of interesting clouds over London this morning. A big sheet of altocumulus (?) that seems to have been chopped about a bit by aircraft movements.

    image.
     
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  6. cloudspotter

    cloudspotter Senior Member

    Looks more like a distrail
     
  7. Trailblazer

    Trailblazer Moderator Staff Member

    I'm inclined to agree with you, just the way it seemed to spread out into an oval was strange. The wait for a hole punch cloud continues.

    In the second picture, is that altocumulus or cirrocumulus? I need to brush up on my cloud identification...
     
  8. cloudspotter

    cloudspotter Senior Member

    I'm inclined to go with cirrocumulus except towards the top of the picture where it's starting to look more like alto :oops:
     
  9. Trailblazer

    Trailblazer Moderator Staff Member

    Not a bad sunset either. Lots going on here! (Including stray reflections on the glass, unfortunately)

    image.
     
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  10. littlepoots

    littlepoots New Member

    this looks photoshopped but i swear it is not!

    1937456_10152170230572414_2520202304320483678_n.
     
    Last edited by a moderator: Nov 22, 2014
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  11. littlepoots

    littlepoots New Member

    a few more.

    1186786_10151599389752414_1542807465_n. 1937456_10152170230572414_2520202304320483678_n.
     
    Last edited by a moderator: Nov 22, 2014
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  12. deirdre

    deirdre Moderator Staff Member

    despite the 3 contrails I'm going with the cloud thread since, well, they are clouds too.

    P1000722.JPG

    P1000654.JPG
     
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  13. littlepoots

    littlepoots New Member

    One of my photos was in duplicate but I cannot figure out how to delete it. (grabbed the wrong png file)
     
  14. Mackdog

    Mackdog Active Member

    IMG_3859.JPG IMG_3860.JPG 041.JPG
     
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  15. PeteSYD

    PeteSYD Member

    IMG_0746.
    Air France A340, taken from an SAS 737 with a very, very dirty window. En-route Copenhagen to Paris, March 2006.
    IMG_0359_2.
    Jetstar flight JQ759, A320, Brisbane to Hobart, leaving a broken contrail over Sydney at 39000 feet, 28 November 2014. (Crappy iPhone shot, sorry!)
     
    Last edited: Dec 1, 2014
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  16. M Bornong

    M Bornong Senior Member

    My wife and I spent 4 days (Nov.27-30) in Kennedy Meadows, Eastern Tulare County, California. These are a few formations that we got to enjoy during that time.

    Nov.27, Coronae

    DSCF0030. DSCF0032. DSCF0036.

    Nov. 27 Fallstreaks

    DSCF0015. DSCF0027.

    Nov. 29 Fallstreaks and Sun Dogs

    DSCF0314. DSCF0317. DSCF0326.

    Nov. 27 Waves and Grids

    DSCF0047. DSCF0126. DSCF0138.

    Nov. 27 Lenticularis, same formation taken at 2:30 pm and 5:45 pm

    DSCF0002. DSCF0160.

    Lenticularis Nov. 29

    DSCF0353. DSCF0379.
     
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  17. Mick West

    Mick West Administrator Staff Member

    Unusual row clouds over Venice, CA
    IMG_4447-w.
     
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  18. BigTBoom

    BigTBoom New Member

    I'm not really sure what to make of this one... it appears to be one trail that diverges into two different trails and a shadow but perhaps it's two different trails and the shadow of one of them? It was about 8:30 am on 12/10/2014 facing W or WSW.

    20141210_083525[1].
     
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  19. Mick West

    Mick West Administrator Staff Member

    This, I think. The long white trail is in line with the sun, casting an edge shadow, and there just happens to be an older contrail lined up with both of them - maybe lower as it's darker.
     
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  20. WeedWhacker

    WeedWhacker Senior Member

    Dierdre, that is such a beautiful, well-composed photo! There are companies that will take your digital JPEG (or whatever) files, and print them on photo-quality paper for (usually) relatively modest fees....suitable then for framing.

    My "ex" did this years ago....circa late 1990s. Of course, back then we didn't have the readily available photo-quality and affordable home ink-jet printers either...so, maybe this sort of service is a bit obsolete?
     
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  21. Rico

    Rico Active Member

    Low-level overcast clouds covering a wide area. Caused by a bit of high pressure and a moist air mass. Oh, and winter.

    overcast_FL230.
     
    Last edited: Dec 19, 2014
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  22. Trailblazer

    Trailblazer Moderator Staff Member

    Very nice @Rico. What were you flying?

    That reminds me, I was going through some holiday photos from last year and found these, taken from an early-morning BA flight leaving Lisbon last October. A nice variety of clouds and a few contrails in the distance for good measure!

    lisbon1. lisbon2.
     
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  23. WeedWhacker

    WeedWhacker Senior Member

    ....beautiful, and stunning. Print and frame them, would be my suggestion.

    (Aside....love Lisbon!!).

    Also, eta....looks like you were aboard an A-320? (Guessing by the winglets in one image)...
     
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  24. Trailblazer

    Trailblazer Moderator Staff Member

    I wouldn't have been able to tell you - this holiday was before I got interested in the whole "chemtrails" thing, and my interest in/knowledge of aircraft was several orders of magnitude lower! :)

    But looking at my booking it was flight BA499 which certainly uses an A320 currently, so I assume it was back then too.
     
  25. NoParty

    NoParty Senior Member

    Dosewallips Sunrise WA 7:10:11 r.

    From WA's Dosewallips State Park...just east of Olympic National Park 7/10/11 (click to enlarge)


    Clouds over Crater Lake r.

    Clouds over Oregon's Crater Lake, Summer 2011 (click to enlarge)
     
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  26. SR1419

    SR1419 Senior Member

    Not really sure what was going on with this cloud- if its aircraft related or what...but it was interesting:


    photo 1(7).JPG photo 2(8).JPG
     
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  27. M Bornong

    M Bornong Senior Member

  28. SR1419

    SR1419 Senior Member

  29. PeteSYD

    PeteSYD Member

    Sydney sunsets, from what was essentially the same vantage point. IMG_0247.JPG IMG_0245.JPG IMG_0246.JPG
     
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  30. M Bornong

    M Bornong Senior Member

    As far as I know, they are usually air plane induced, here's another explanation by NASA along with satellite photo, https://www.flickr.com/photos/gsfc/16109909541/
     
  31. SR1419

    SR1419 Senior Member

    Ok...so, I didn't actually take this picture...my brother did...but it was so cool I had to share. This was taken yesterday (12.30) in SW Montana in late afternoon with the outside temp approximately -12 below (f)

    Its a relatively common occurrence in this area in winter as the local ski area's catch phrase is "Sun Dogs and Powder Hounds"





    two suns 2.
     
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  32. JesseCuster

    JesseCuster Active Member

    DSC_0018.JPG Not contrails related but the moon looked pretty tonight behind the clouds. A nice pic of the night sky I think from where I can see it this evening.
     
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  33. Mackdog

    Mackdog Active Member

    Great sunset and sundog on New Years Day..
    The sunset pic isn't the best resolution, and sort of looks like a nuclear explosion that I happened to get a picture of lol
    IMG_0916_2. IMG_0918_2.
     
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  34. BigTBoom

    BigTBoom New Member

    A view of the Earth's shadow from a 787 looking east at 39,000 feet somewhere over the Texas panhandle on 12.29.2014 around 5pm (sorry it's a bit blurry, de-icer fluid from DEN!) From what I could see across the plane, the sunset was absolutely amazing as well, but couldn't get a picture of that:(.

    20141229_165202.
     
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  35. NoParty

    NoParty Senior Member

    WTF happened?!? Soooo cold now!


    05 Lamar June 2014 : Jan 2015.
     
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  36. Trailblazer

    Trailblazer Moderator Staff Member

    I took this one a few days ago in London. "Mare's tails" I believe, but I've never seen any that look quite as much like a plume of feathers.

    image.
     
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  37. cloudspotter

    cloudspotter Senior Member

    Cirrocumulus radiatus rather than cirrus uncinus I think
     
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  38. Trailblazer

    Trailblazer Moderator Staff Member

    Thanks - I hadn't come across that cloud formation but that sounds spot on:

    http://nephology.eu/cirrus/cirrus-radiatus

    I just checked the date. It was Jan 2 at about 3.15pm, facing southwest. Looking at the satellite view from a bit earlier that day you can see the bands of cirrus ahead of the cloud which was moving up from the south. The cloud "rays" were aligned SW-NE so they would have been pointing almost directly at the camera, appearing to converge due to perspective.

    upload_2015-1-13_11-31-45.
     
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  39. Trailblazer

    Trailblazer Moderator Staff Member

    Now these ones from this morning really are mare's tails! This is the cold front clearance behind storm "Rachel", which delivered plenty of rain and gales to the UK overnight. Looks like a distrail across the upper left, too.

    image.


    In the clear sky behind was this odd cut-off piece of contrail, which was rapidly blown across the sky from the southern horizon while I watched.

    image.

    image.
     
    Last edited: Jan 15, 2015
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  40. deirdre

    deirdre Moderator Staff Member

    I'm so bummed i got to watch this persistent trail evaporate in segments (between cloud areas) right before my eyes but couldnt pull over (and still see it) anywhere fast enough to catch the whole process. Tried to grab some while driving but not easy on windy roads : ( it was very cool to watch.

    P1000925.JPG P1000936.JPG P1000923.JPG
     
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