Just got through the tornado reports and one thing stuck out!
In a number of cases the sirens were knocked out and folks were NOT warned, and in reality sirens are only good for outside, unless you live under one!
Those that had weather warn radios were warned, if you do not have one get one!
We have a Recom http://www.reecominc.com
which I bought to go with us in the tear and at home, the one thing that separates itself from other weather warn radios is that it goes on standby after making a warning.