WOAA47 NZKL 171850 ICE ACCRETION WARNING 299 THIS AFFECTS OCEAN AREA: SOUTHERN AT 171800UTC OVER WATERS EAST OF WESTERN BOUNDARY AND NORTH OF ICE EDGE. IN AN AREA BOUNDED BY 59S 160E 60S 170E 64S 173E 62S 160E 59S 160E: HEAVY ICE ACCRETION DEVELOPING NEXT 6 HOURS. ICE ACCRETION AREA THEN MOVING EASTSOUTHEAST 10KT. THIS WARNING CANCELS AND REPLACES WARNING 294.=