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They were going off near Old Harris & 278. Lots of bad storms (according to radar online) but no actual WARNING posted on any site. Just watches. Sometimes the alarms go off because the radar shows a "hook" which is often seen before a tornado forms. Its a pain & confuses people but better safe than sorry. Basically, my rule of thumb is to use the sirens as a "go look" alert. If they are going off, I look outside, listen for myself. I have lived through TONS of severe storms and a few tornadoes. Use your gut instincts...!