WSPF21 NTAA 100451 NTTT SIGMET A2 VALID 100500/100900 NTAA- NTTT TAHITI FIR/UIR EMBD TS FCST WI S1545 W15315 - S1400 W15400 - S1400 W15145 - S1545 W15100 - S1545 W15315 TOP FL400 MOV E 05KT NC=