WOAA47 NZKL 190634 ICE ACCRETION WARNING 434 THIS AFFECTS OCEAN AREA: SOUTHERN AT 190600UTC OVER WATERS NORTH OF ICE EDGE. IN AN AREA BOUNDED BY 63S 165W 63S 145W 69S 139W 68S 174W 66S 175W 63S 165W: HEAVY ICE ACCRETION. ICE ACCRETION AREA MOVING EAST 5KT. THIS WARNING CANCELS AND REPLACES WARNING 430.=