WOAA47 NZKL 221321 ICE ACCRETION WARNING 447 THIS AFFECTS OCEAN AREA: SOUTHERN AT 221200UTC OVER WATERS NORTH OF ICE EDGE. IN AN AREA BOUNDED BY 62S 165E 62S 171E 63S 175E 65S 175E 64S 164E 62S 165E: HEAVY ICE ACCRETION DEVELOPING NEXT 6-12 HOURS. ICE ACCRETION AREA THEN SLOW MOVING.=