Saturday, 8 January 2011

Lowitz arcs from Florida

Nick Beck has sent this high cloud halo display that he observed on Christmas eve in Florida. The sun elevation was 31 degrees when it started and the display ended when the sun was 7 degrees above the horizon, lasting a little over 3 hours. The observed halos include Lowitz, upper sunvex and suncave Parry arcs ( 1 ), possible Wegener ( 2 ) and helic ( 3 ) arcs, and infralateral arc ( 4 ),among others ( 5 - 6 - 7 - 8 - 9 - 10 - 11 )

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