IMO the sounding of a siren for an all clear is pointless. It is contradictory. What happens when the initial warning is issued and they blow the sirens for 3 minutes and then 10 minutes later they blow them again (the storm hasn't hit yet) and people mistake that for the all-clear? Like has been brought up 100,000 times in the past, the tornado siren is technically meant for those who are outdoors and away from a tv or radio. Unless you live within a close proximity of the siren, who would actually hear the warning siren let alone the all clear. Especially if you are huddle in the basement in an interior room. I know at my house I live 3 blocks north and 4 blocks east of the nearest siren and I can't even hear it (and my room is upstairs next to an outside wall facing the siren). Peoples' all clear should come from the NWR/media/radio stations. I.E - "The tornado warning for XXXXX County has been cancelled/allowed to expire." IMO that is the only all clear the general public needs.
Technically each home has the capability to have its' OWN personal tornado siren.....its called a NOAA WEATHER RADIO.
http://www.essortment.com/all/tornadossiren_rntb.htm this article posted above lost my interest...... They are trying to argue a tornado siren will wake you over the roar of an oncoming tornado. The only way that will happen is if you sleep with the windows open and you are within a few blocks of the tornado siren. We should be seeing less articles on the wonders of outdoor sirens and more articles on the wonder of what a NWR can do.
In THIS article
http://www.wsws.org/articles/2008/feb2008/torn-f13.shtml ......
""""Discussing the lack of warning sirens in the state, Alabama Governor Bob Riley added, “Can the state afford to put sirens all over the state of Alabama right now? We can’t without a tremendous amount of federal assistance.”"""""You don't need them. It may costs thousands of dollars to have a network of outdoor sirens, when that same allotment of funds could have bought the entire population of that state a cheap weather radio. You have a hell of a lot better chance, hearing a loud siren going off in your bedroom than you do one that is miles away.
http://www.jsonline.com/news/milwaukee/29581894.html In the final article posted it opens as:
""""""More than 10,000 residents in southwest Milwaukee County would not hear an outdoor warning siren if a tornado swept through the region.The 51 tornado sirens in place do not fully cover all of the county's residents, a Journal Sentinel mapping analysis found. These sirens are sometimes the only warning that a deadly funnel cloud is fast approaching.""""""Again..... why waste money on coverage of tornado sirens? Media needs to continue to promote and push for weather radios. Most fire departments hand out free smoke detectors to those in need, why not start handing out cheap battery powered WX radios. This whole article is crying for change for more coverage in sirens......EXCEPT for the bottom (Sirens called archaic) I wish I had read this far before using the smoke detector reference.....
"""""""What is the best means of warning people and the most cost-effective ways of warning people? Weather radios are so cost-effective and inexpensive they should be as standard in the home as a smoke detector," Maack said."""""" <------Now lets continue to run with this idea.