WWNZ40 NZKL 181845 GALE WARNING 423 THIS AFFECTS OCEAN AREAS: FORTIES AND SOUTHERN AT 181800UTC OVER WATERS NORTH OF ICE EDGE. IN A BELT 300 NAUTICAL MILES WIDE CENTRED ON A LINE 62S 172E 60S 177E 58S 176W: SOUTHWEST 35KT. GALE AREA MOVING NORTHEAST 20KT. THIS WARNING CANCELS AND REPLACES WARNING 417.