I live on O'ahu and was holding my phone when the emergency alert came in at 8:07am. I yelled "Oh my God!" and ran to show my wife the message. I've run through this scenario a few times in my head before and I knew every minute was critical -- so I went into action mode immediately. I told my two kids to get dressed
now because we were leaving in exactly 1 minute. The reason we were leaving is our house is single-wall wood construction with no sealed windows and no HVAC, which is pretty much the least ideal shelter possible in a nuclear fallout scenario.
The four of us were in the car on the road at ~8:09 and inside the local LDS (Mormon) Church 0.9 miles away at 8:12am. The church building is the nearest concrete structure with sealed windows and interior rooms that I knew I could gain access to. Unfortunately it doesn't have a basement, but very few structures in Hawaii do.
Thankfully, the doors were already open as there was a family inside doing some cleaning. We were the first to arrive and at least a dozen other families showed in the next 10 minutes. We all hunkered in the gym, some crying, some praying, most just in shock. The first glimmer of hope came when I read the first report of the it being a false alarm on Twitter at around 8:23am.
The whole incident was absolutely terrifying and I'm very upset that it even happened. But, we learned some valuable lessons and I'm satisfied with how my family responded to the incident. Overall, my plan was good and was executed about as flawlessly as possible. I realize we need to add a "bug-out bag" of essential items (e.g. medications, cell phone charger, hand-crank radio) that we can grab as we head out.
It most definitely helped that I had considered this scenario before and knew exactly what steps I would take. The one good takeaway is that this event has sparked many similar conversations state-wide (and beyond) of what to do in these situations. Here's hoping these plans never have to be executed again...