Don't store hard refs to an area which can cause race condtions
Instead, get our area only when we need it
The following runtime has occured 4426 time(s).
runtime error: Cannot read null.atmosalm
proc name: update icon (/obj/machinery/airalarm/update_icon)
source file: airalarm.dm,535
usr: null
src: the alarm (/obj/machinery/airalarm)
265b8d2d20