674 WSNZ21 NZKL 221213 NZZC SIGMET 50 VALID 221219/221619 NZKL- NZZC NEW ZEALAND FIR SEV MTW FCST WI S4510 E17210 - S4330 E17000 - S4100 E17350 - S4120 E17450 - S3830 E17700 - S4040 E17750 - S4510 E17210 FL250/340 STNR NC=  691 WSNZ21 NZKL 221214 NZZC SIGMET 51 VALID 221219/221228 NZKL- NZZC NEW ZEALAND FIR CNL SIGMET 33 220828/221228=  713 WSNZ21 NZKL 221220 NZZC SIGMET 52 VALID 221220/221330 NZKL- NZZC NEW ZEALAND FIR CNL SIGMET 38 220930/221330=