WAUS42 KKCI 122045 WA2S MIAS WA 122045 AIRMET SIERRA UPDT 3 FOR IFR AND MTN OBSCN VALID UNTIL 130300 . NO SGFNT IFR EXP OUTSIDE OF CNVTV ACT. . AIRMET MTN OBSCN...NC SC GA FROM CLT TO IRQ TO ATL TO GQO TO CLT MTNS OCNL OBSC BY CLDS/PCPN/BR/FG. CONDS DVLPG 00-03Z. CONDS CONTG BYD 03Z THRU 09Z. . OTLK VALID 0300-0900Z...IFR SC GA FL AND CSTL WTRS BOUNDED BY LGC-SAV-CRG-20SSE OMN-CTY-50SW PZD-LGC CIG BLW 010/VIS BLW 3SM PCPN/BR/FG. CONDS DVLPG 06-09Z. CONDS CONTG THRU 09Z. ....