WOAA47 NZKL 270732 ICE ACCRETION WARNING 600 THIS AFFECTS OCEAN AREA: SOUTHERN AT 270600UTC OVER WATERS NORTH OF ICE EDGE. IN AN AREA BOUNDED BY 71S 133W 69S 172E 65S 174E 63S 149W 71S 133W: HEAVY ICE ACCRETION. ICE ACCRETION AREA MOVING EAST 5KT. THIS WARNING CANCELS AND REPLACES WARNING 593.=