MD83 - one observation which applies to all types: IF your performance dept has (as req'd) surveyed the SID for safety up to either return or en-route MSA - many don't - then you may need to follow any published emergency route. If as is common, their care for you and your pax and crew ends at 1500'AAL clean then you had better have an idea of what may lie between 1500 and MSA in terms of cumulo-granitus.