
Photo by Joshua Thomas in Red River NM Jan 9, 2015

Picture courtesy of Joshua Thomas. Annotation and documentation by NWS La Crosse, WI and Les Crowley.
...A truly special display of ice halo phenomena including rare suncave and sunvex Parry arcs, helic arcs, and intense supralateral and infralateral arcs. To learn more about ice halos and other atmospheric optical phenomena, see the Atmospheric Optics page: www.atoptics.co.uk.