Exemption 3585 allows 121 carriers (and perhaps others) to dispatch to destinations in certain cases with weather below minimums. What are the forecast weather minimums to be dispatched under exemption 3585? When is it required to have a second alternate listed on the release? What are the forecast weather requirements at the two alternates? What is the regulatory basis for this exemption?
Is it possible for airline pilots to communicate with dispatchers? If so, what methods do they use? A special radio channel?