Altocumulus Nor’ West Arch Date: May 27, 2017Author: E Wen W. Category: Altocumulus, Mammatus, Nor' West Arch Tags: Christchurch Post navigation ← Classification: Installments I, II, III An Interview with Gavin Pretor-Pinney → Morning Nor’ West Arch (Altocumulus) over Burnside High School in Christchurch, New Zealand. Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Pinterest (Opens in new window)Like Loading...