JOINT BASE LEWIS-MCCHORD, Wash. -- Joint Base Lewis-McChord will conduct day and nighttime training with 60, 81 and 120 mm mortars from 12 a.m., Aug. 18, through 11:59 p.m., Aug. 22.The local community can expect to hear increased levels of activity during the daytime and nighttime hours, and it can extend beyond the posted times due to training requirements.Public queries or comments about noise may be directed to #JBLM Public Affairs through