WAUS41 KKCI 122045 WA1Z BOSZ WA 122045 AIRMET ZULU UPDT 4 FOR ICE AND FRZLVL VALID UNTIL 130300 . AIRMET ICE...ME NH VT AND CSTL WTRS FROM 80NW PQI TO 40NE PQI TO 50SW YSJ TO 30ESE MPV TO YSC TO 80NW PQI MOD ICE BTN 080 AND FL180. CONDS DVLPG 00-03Z. CONDS CONTG BYD 03Z THRU 09Z. . OTLK VALID 0300-0900Z...ICE ME NH VT MA NY AND CSTL WTRS BOUNDED BY 70NW PQI-50NNE PQI-40WSW YSJ-160ESE ACK-20N PLB-YSC-70NW PQI MOD ICE BTN 080 AND FL180. CONDS CONTG THRU 09Z. . FRZLVL...RANGING FROM 065-155 ACRS AREA 080 ALG 50E YQB-20W HUL-40ESE HUL 120 ALG 50WSW YOW-50ENE SYR-110SE ACK-190SE ACK ....