Our prayers to those also. Tornados in this part of the country at this time of the year is the riskiest time for them to occur.
Moore, OK is just south of OKC and is next to Norman, OK on I35.
OKC is the home of the FAA Academy and I have spent much time there for training.
The academy is a large complex and the first thing all students are taught when they began each class is the location of the many underground tunnels that are under the academy buildings and where the various entrances/stairways used to get into them are located.
Tornados are taken seriously here and with good reason.