On May 14 nice cirrus clouds blew in and generated a very nice complex of high-sun elevation of halos. In all I got 22d halo complete circumscribed halo, complete parhelic circle, infralateral arc, and a beautiful circumhorizontal arc. Some pic's seem to show faint upper concave parry as well
http://ohio-optics.blogspot.com/2015/05 ... o-and.html
Greetings from the USA,
Michael