WOAA47 NZKL 270733 ICE ACCRETION WARNING 601 THIS AFFECTS OCEAN AREA: SOUTHERN AT 270600UTC OVER WATERS EAST OF WESTERN BOUNDARY AND NORTH OF ICE EDGE. IN AN AREA BOUNDED BY 69S 156E 62S 157E 66S 172E 69S 174E 69S 156E: HEAVY ICE ACCRETION. ICE ACCRETION AREA MOVING EASTNORTHEAST 10KT. THIS WARNING CANCELS AND REPLACES WARNING 594.=