000 WAHW31 PHFO 191528 WA0HI HNLS WA 191600 AIRMET SIERRA UPDATE 4 FOR IFR VALID UNTIL 192200 . AIRMET MTN OBSC...KAUAI OAHU MOLOKAI AND MAUI N THRU E SECTIONS. MTN TEMPO OBSC ABV 020 DUE TO CLD AND SHRA. COND ENDING BY 1800Z. =HNLT WA 191600 AIRMET TANGO UPDATE 2 FOR TURB VALID UNTIL 192200 . NO SIGNIFICANT TURB EXP. =HNLZ WA 191600 AIRMET ZULU UPDATE 2 FOR ICE AND FZLVL VALID UNTIL 192200 . NO SIGNIFICANT ICE EXP. . FZLVL...138 PHLI SLOPING TO 144 PHTO.