Severe weather week continues. Many regions still use a time-tested mechanism to warn residents of twisters. Following the May 22nd, 2011 tornado that leveled Joplin, Missouri, city officials reviewed their storm-siren system to determine a best practice use. Upon hearing the siren, residents were confused as to when to take cover and when the “all clear” was activated. The solution was the elimination of the second blast with siren testing confined to the first and third monthly Mondays. In addition, when activated for storm alerts, a siren’s tone remains steady for three minutes. As noted in a previous column, year’s ago, sirens alerted residents in Baton Rouge. One of the last was located on Government Street near Independence Park.