Airbubba is very right.. a not close to ground GA can get nasty..and the most probable scenario...+ 6 hours flight in a cockpit designed for 1,5..night, bad weather may be some icing.. and probably already tired and stressed out crew. I wonder why they did to go to their alternate...well I know the answer... Start getting used to this events in low cost non unionized or partially unionized airlines squeezing life out of their crew ..