WOAA47 NZKL 211911 ICE ACCRETION WARNING 430 THIS AFFECTS OCEAN AREA: SOUTHERN AT 211800UTC OVER WATERS NORTH OF ICE EDGE. IN AN AREA BOUNDED BY 66S 162E 64S 161E 61S 166W 60S 152W 67S 156W 66S 162E: HEAVY ICE ACCRETION. ICE ACCRETION AREA MOVING EAST 15KT. THIS WARNING CANCELS AND REPLACES WARNING 423.=