ZCZC IB41 060120 UTC MAR 20 GREENLAND UPERNAVIK GALE WARNING FOR: ATTU: NORTH 17 M/S. UIFFAQ: *NORT*WEST 14 M/S. W*R*ING OF ICT ACCRETION*FOR* *ATTU: THE*E IS RISK *OF SEVERE ICE ACCR*TION. * NNNN