000 WAHW31 PHFO 221453 WA0HI HNLS WA 221600 AIRMET SIERRA UPDATE 2 FOR IFR VALID UNTIL 222200 . AIRMET MTN OBSC...BIG ISLAND...CANCELED CONDS HAVE IMPROVED. =HNLT WA 221600 AIRMET TANGO UPDATE 2 FOR TURB VALID UNTIL 222200 . AIRMET TURB...HI...CANCELED CONDS HAVE IMPROVED. =HNLZ WA 221600 AIRMET ZULU UPDATE 2 FOR ICE AND FZLVL VALID UNTIL 222200 . NO SIGNIFICANT ICE EXP. . FZLVL...151-155.