WOAA47 NZKL 050613 ICE ACCRETION WARNING 083 THIS AFFECTS OCEAN AREA: SOUTHERN AT 050600UTC OVER WATERS NORTH OF ICE EDGE. IN AN AREA BOUNDED BY 68S 180 67S 166W 73S 159W 73S 175E 68S 180: HEAVY ICE ACCRETION. ICE ACCRETION AREA MOVING EAST 5KT. THIS WARNING CANCELS AND REPLACES WARNING 078.=