WOAA47 NZKL 251257 ICE ACCRETION WARNING 585 THIS AFFECTS OCEAN AREA: SOUTHERN AT 251200UTC OVER WATERS NORTH OF ICE EDGE. IN AN AREA BOUNDED BY 68S 160E 61S 160E 64S 158W 67S 152W 68S 160E: HEAVY ICE ACCRETION. ICE ACCRETION AREA SLOW MOVING. THIS WARNING CANCELS AND REPLACES WARNING 579.