My major point here is that there is more than one system available for warning the public about a hazard. Emergency managers need to be proficient in using all of them, 24/7, since disasters don't seem to always happen between 8 a.m. and 5 p.m. Monday through Friday.
Who is authorized, willing, trained and capable of issuing a warning to the public at 2 a.m. in the morning and do they have the tools and equipment needed to do so? Everyone needs to be able to answer these questions, and also, how many warning systems are you capable of employing?