WOAA47 NZKL 061856 ICE ACCRETION WARNING 143 THIS AFFECTS OCEAN AREA: SOUTHERN AT 061800UTC OVER WATERS NORTH OF ICE EDGE. IN AN AREA BOUNDED BY 66S 120W 66S 171W 61S 161W 60S 144W 66S 120W: HEAVY ICE ACCRETION. ICE ACCRETION AREA MOVING EAST 20KT. THIS WARNING CANCELS AND REPLACES WARNING 137.