WVPF21 NTAA 190218 NTTT SIGMET B1 VALID 190220/190230 NTAA- NTTT TAHITI FIR/UIR VA ADVISORY TEST MSG NUMBER 2025/05 RECEIVED FM VAAC NZKL VA ERUPTION MT TONGARIRO / NGAURUHOE PSN S3909 E17538 VA CLD FCST WI S1245 W12900 - S1215 W12915 - S1215 W12845 - S1245 W12900 SFC/FL010 WKN FCST AT 0230Z NO VA EXP=