000 WAHW31 PHFO 182022 WA0HI HNLS WA 182021 AMD AIRMET SIERRA UPDATE 4 FOR IFR VALID UNTIL 182200 . AIRMET IFR...KAUAI...UPDATE N THRU E SECTIONS. TEMPO CEILING BLW 010 AND/OR VIS BLW 3SM SHRA. COND CONT BEYOND 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...143-140.