The Hawaii Governor did a Facebook live event on 24 July 2017 with the emergency preparedness head and they discussed the threat to Hawaii from North Korea missile launch.
Part 1: https://www.facebook.com/HawaiiARRL/?ref=bookmarks
Part 2: https://www.facebook.com/HawaiiARRL/?ref=bookmarks
On 1 Aug 2017 the State will test a new siren warning system that goes back to the cold war era.
State officials now recommend your disaster supply kit last for at least 14 days
Publications from Hawaii Emergency Management Agency