McCall Glacier Upper Cirque Firn Site Wednesday, September 23, 2015, 10:00 AM AST AT -15.2 C, 4.6 F DP -17.5 C, 0.5 F RH 82.4 % SONIC 1.837 m WS average 0.0 MPH, maximum 0.0 MPH WD N BAT 12.91 VDC