Saturday, 22 December 2018

Some odd radius column displays from China in 2018

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Odd radius column arcs have long been deemed as some of the rarest halo forms. Sighting reports in most parts of the world have indeed ...
3 comments:
Monday, 17 December 2018

Complex Halo Display, Borlänge, Sweden

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On the 14th December 2018 at 12.30 UTC, Magnus Edbäck photographed an amazingly complex display in his home village of Utendal near Borlä...
18 comments:
Friday, 14 December 2018

Spotlight display with diffuse and Tricker arcs

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The diamond dust season has begun in the Czech Republic and on the night between 13th and 14th December it showed what it can do. Temper...
8 comments:
Thursday, 13 December 2018

Elliptical halos 12-12-18

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Early in the day before leaving for work saw some AC clouds moving over our area and whenever I see AC clouds or altocumulus clouds first th...
2 comments:
Wednesday, 14 November 2018

Possible observation of exotic 28d upper plate arc

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Upper left and upper right are image processing by N. Lefaudeux. Lower left is my own processing, and lower right the simulation. All ver...
2 comments:
Thursday, 18 October 2018

New case of exotic 19d plate arcs

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When I first noticed the display at 08-10 local time on 31 May 2018, it was already well-developed. The high cloud layer was very thin and ...
6 comments:
Sunday, 7 October 2018

Time machine: the Chengdu display from July 20, 2016

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The 1997 Lascar display ( http://www.thehalovault.org/ 2008/12/lascar-display.html ) opened the door to a world of exotic halos. Halo res...
14 comments: