As I sit at my computer desk the town tsunami alert is going off as it always does on the last Friday of the month. The alarm is a single note going up and down the scale. The all-clear signal is their version of Big Ben playing the hours. This is something set up just a few years ago and although it's never been used for any alert, it gives those who need it some kind of assurance. Does anyone else have some kind of alert that your "founding fathers" have tested regularly? What is it called?