WOAA47 NZKL 061857 ICE ACCRETION WARNING 144 THIS AFFECTS OCEAN AREA: SOUTHERN AT 061800UTC IN AN AREA BOUNDED BY 62S 163E 62S 176E 66S 174W 65S 163E 62S 163E: HEAVY ICE ACCRETION DEVELOPING NEXT 6-12 HOURS. ICE ACCRETION AREA THEN MOVING EAST 20KT.