WOAA47 NZKL 280738 ICE ACCRETION WARNING 622 THIS AFFECTS OCEAN AREA: SOUTHERN AT 280600UTC OVER WATERS NORTH OF ICE EDGE. IN AN AREA BOUNDED BY 69S 147W 68S 164E 64S 176E 63S 166W 69S 147W: HEAVY ICE ACCRETION. ICE ACCRETION AREA MOVING EAST 20KT. THIS WARNING CANCELS AND REPLACES WARNING 617.=