000 WAHW31 PHFO 181533 WA0HI HNLS WA 181600 AIRMET SIERRA UPDATE 2 FOR IFR VALID UNTIL 182200 . AIRMET MTN OBSC...BIG ISLAND UPOLU POINT TO VOLCANO. MTN TEMPO OBSC ABV 025 DUE TO CLOUD AND SHRA. COND END BY 2200Z. =HNLT WA 181600 AIRMET TANGO UPDATE 2 FOR TURB VALID UNTIL 182200 . NO SIGNIFICANT TURB EXP. =HNLZ WA 181600 AIRMET ZULU UPDATE 2 FOR ICE AND FZLVL VALID UNTIL 182200 . NO SIGNIFICANT ICE EXP. . FZLVL...156 PHLI SLOPING TO 149 PHTO.