WOAA47 NZKL 301214 ICE ACCRETION WARNING 451 THIS AFFECTS OCEAN AREA: SOUTHERN AT 301200UTC OVER WATERS NORTH OF ICE EDGE. IN AN AREA BOUNDED BY 69S 131W 67S 179E 63S 179E 58S 150W 69S 131W: HEAVY ICE ACCRETION. ICE ACCRETION AREA MOVING EAST 20KT. THIS WARNING CANCELS AND REPLACES WARNING 446.=