000 WAUS43 KKCI 241445 WA3S CHIS WA 241445 AIRMET SIERRA UPDT 4 FOR IFR AND MTN OBSCN VALID UNTIL 242100 . NO SGFNT IFR EXP OUTSIDE OF CNVTV ACT. . AIRMET MTN OBSCN...KY TN FROM HNN TO HMV TO GQO TO 50WNW VXV TO 60ENE LOZ TO HNN MTNS OBSC BY CLDS/PCPN/BR. CONDS ENDG BY 18Z. ....