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Audinos (October 13, 2008 at 4:24 pm)
The siren you're hearing is an STH-10 that is not visible in the video. In the 1950's, sirens had three signals: "fire," which was usually three long blasts to call volunteers, "alert," which was a 3-5 minute steady blast to warn of an impending attack, and "attack," a 3-5 minute rising-falling signal that an attack (i.e. nuclear missile) was happening. Most Midwestern communities use a steady "alert" tone for tornado warning, as do Pacific coastal communities for a tsunami warning.
campanilefreak (October 13, 2008 at 2:38 pm)
I see. Thanks! Are you saying that the Midwest uses the wail in this video (rising-falling), or that the Midwest uses the prolonged tone.Do you know what model the siren in this video is?
Audinos (October 13, 2008 at 2:21 pm)
On the Pacific coast, most sirens sound a tsunami warning of a prolonged, steady tone. In the Midwest, most (but not all) communities use this for a tornado warning. This comes from the days when a rising-falling siren (attack) was reserved for civil defence use. As in many parts of Europe, the fire signal was traditionally three or four long, slow blasts, but today it can be anything.
campanilefreak (October 13, 2008 at 1:49 pm)
I'm not saying that Minnesota has tsunamis. This is the impression a Seaside, OR page gave me on their sirens: the siren wail that slides from a low pitch to a high pitch and holds that high note, then slides back down again is (I think) officially a tsunami siren wail, while a fire siren slides back and forth three or four times before sliding back to its original pitch. There isn't a separate call for tornados or floods.
Audinos (October 13, 2008 at 6:38 am)
Do they have many tsunamis in Minnesota? There are a lot of lakes there :)
teseesendemylffonxD (October 6, 2008 at 2:21 pm)
I like this song :)
Frailfurballl (October 4, 2008 at 11:47 pm)
sounds like an air raid siren.
campanilefreak (October 3, 2008 at 3:16 am)
The ones in Minnesota must be tsunami siren calls (not always used for tsunamis). This is the sound that is officially called a tsunami warning. The sound this siren makes is a fire warning.
juterman (September 24, 2008 at 1:02 am)
it's not running?
timisin1234 (August 29, 2008 at 8:18 pm)
the ones in minnesota have a solid sound and rotate. unlike these ones that fade from highto low pitch |
