Are these clouds normal?

reply to post by czygyny


speaking of circumzenithal arcs.

heres one i saw recently (no earthquakes, either :-))

www.abovetopsecret.com...

Originally posted by incrediblelousminds
reply to post by czygyny

 

speaking of circumzenithal arcs.

heres one i saw recently (no earthquakes, either :-))

www.abovetopsecret.com...

Yeah! Another one of my favorites! A circumzenith arc...and resting on an supralateral arc, which is pretty rare, and then a common 22° halo (which I would have expected given the other arcs)!! Congratulations! Not even I have caught a CZA on a supralateral, one or the other, but not both! And your's is so much brighter...arc envy!

One of my better CZAs:

[atsimg]http://files.abovetopsecret.com/images/member/844df7af2526.jpg[/atsimg]

A circumscribed halo, supralateral arc (red arrows pointing to very dim arc) and partial parhelic circle:

[atsimg]http://files.abovetopsecret.com/images/member/6b6f8952f144.jpg[/atsimg]

Supralateral and Infralateral Arcs

For those skywatchers out there, CZAs are always nearly overhead, whereas CHAs (circumhorizontal arc) are always around 45° from the horizon. CZAs blue on top, red on bottom, CHAs red on top, blue on bottom, sundogs, red on either side depending if it is right or left 'dog'.