In your home, not your shelter, you want a SAME-coded NOAA weather radio and a working scanner covering your local LE/fire/emergency management frequencies. With those working, you'll be aware of a threat long before it emerges. Once the call goes out for weather spotters you can either do like I do...go to work...or else just stay close the the radio and computer monitoring the radar. By not heading to the shelter until it's really necessary, all you really need down there is a good bottle of scotch and a big bag of potato chips. If you had the good sense to place your shelter at the SW corner of your house you probably don't have to worry about the house collapsing onto you either. Simplicity rules...

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Rick, W0FG
CTR2 68-72