WOAA47 NZKL 290021 ICE ACCRETION WARNING 417 THIS AFFECTS OCEAN AREA: SOUTHERN AT 290000UTC OVER WATERS NORTH OF ICE EDGE. IN AN AREA BOUNDED BY 68S 158W 66S 162E 60S 162E 62S 166W 68S 158W: HEAVY ICE ACCRETION. ICE ACCRETION AREA MOVING EASTNORTHEAST 10KT. THIS WARNING CANCELS AND REPLACES WARNING 412.=