####018000501#### WAHW31 PHFO 010633 WA0HI HNLS WA 010620 AMD AIRMET SIERRA UPDATE 1 FOR IFR VALID UNTIL 011000 . AIRMET MTN OBSC... BIG ISLAND UPOLU POINT TO CAPE KUMAKAHI TO SOUTH CAPE. TEMPO MTN OBSC ABV 030 EXP DUE TO CLD AND SHRA. COND END BY 1000Z. =HNLT WA 010400 AIRMET TANGO FOR TURB VALID UNTIL 011000 . NO SIGNIFICANT TURB EXP. =HNLZ WA 010400 AIRMET ZULU FOR ICE AND FZLVL VALID UNTIL 011000 . NO SIGNIFICANT ICE EXP. . FZLVL...160 PHLI SLOPING TO 130 PHTO.