WAUS41 KKCI 172045 WA1S BOSS WA 172045 AIRMET SIERRA UPDT 4 FOR IFR AND MTN OBSCN VALID UNTIL 180300 . NO SGFNT IFR EXP OUTSIDE OF CNVTV ACT. . AIRMET MTN OBSCN...WV VA NC SC GA FROM EKN TO 50SW CSN TO CLT TO ATL TO GQO TO HMV TO 50S HNN TO EKN MTNS OBSC BY CLDS/PCPN/BR. CONDS CONTG BYD 03Z THRU 09Z. . OTLK VALID 0300-0900Z AREA 1...IFR WV MD VA BOUNDED BY 30N EKN-40NW CSN-30N LYH-20E PSK-50W GSO-30NNW SPA- 50WSW HMV-20SW BKW-30N EKN CIG BLW 010/VIS BLW 3SM BR/FG. CONDS DVLPG 06-09Z. CONDS CONTG THRU 09Z. . AREA 2...IFR ME NH VT NY AND CSTL WTRS BOUNDED BY 80SSE YQB-20SE MLT-50SE HUL-110SSW YSJ-20ENE ENE-40E ALB-50SW MPV-60NNW MPV-80SSE YQB CIG BLW 010/VIS BLW 3SM BR/FG. CONDS DVLPG 03-06Z. CONDS CONTG THRU 09Z. . AREA 3...MTN OBSCN NY PA WV MD VA NC SC GA BOUNDED BY JHW-40WSW HNK-HAR-20N CSN-CLT-40SE ODF-ATL-GQO-HMV- HNN-JHW MTNS OBSC BY CLDS/BR. CONDS CONTG THRU 09Z. . AREA 4...MTN OBSCN ME NH VT MA NY BOUNDED BY 70NW PQI-MLT-CON-30E ALB-30N HNK-SYR-MSS-70NNE MPV- 70NW PQI MTNS OBSC BY CLDS/BR/FG. CONDS DVLPG 06-09Z. CONDS CONTG THRU 09Z. ....