WOAA47 NZKL 120712 ICE ACCRETION WARNING 270 THIS AFFECTS OCEAN AREA: SOUTHERN AT 120600UTC OVER WATERS NORTH OF ICE EDGE. IN AN AREA BOUNDED BY 63S 160E 66S 178E 65S 171W 64S 156W 68S 150W 68S 160E 63S 160E: HEAVY ICE ACCRETION. ICE ACCRETION AREA SLOW MOVING. THIS WARNING CANCELS AND REPLACES WARNING 266.=