WOAA47 NZKL 231314 ICE ACCRETION WARNING 488 THIS AFFECTS OCEAN AREA: SOUTHERN AT 231200UTC OVER WATERS NORTH OF ICE EDGE. IN AN AREA BOUNDED BY 63S 171W 66S 173W 64S 167E 62S 170E 63S 171W: HEAVY ICE ACCRETION EASING NEXT 6-12 HOURS. ICE ACCRETION AREA SLOW MOVING.