SXCN33 CWEG 181411 CYSC~ SIGWX ALERT: LOW VSBY for SHERBROOKE ARPT (ATI/AU5). weg-qo SPECI CYSC 181408Z AUTO 25015G26KT 3/8SM SN BKN016 BKN021 BKN026 M16/M21 A2981 RMK SLP118