Note that Hara Arena is the former home of the Dayton Hamvention. Lots of memories in that old building!
(Source: WHIO via Eric McFadden)
[…]Hara Arena suffered extensive damage when tornadoes and severe storms moved through Monday night.
Drone footage shows the roof and side of the structure blown off in several places.
Click here to view drone footage of the damage to Hara Arena.
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Sympathies to all affected. I am from Australia where tornados are rare. We have cyclones (hurricanes) instead.
I would be interested to know what radio warnings are provided for tornados.
Do they occur at night?
I ask these questions because there is an Emergency Warning System as part of the Digital Radio Mondiale standard. What it does is that it wakes the radio if necessary, switches it to the warning data stream, and changes channel if required, increases the volume and you hear the announcement complete with warning siren. In addition the colour screen on the radio shows you a map of the affected area and there is also Journaline which gives indexed detailed warnings on what to do.(Multiple languages are also possible). Pictures can also be shown. In addition DRM can transmit the latitude and longitude of four points to define the affected area so that only radios within that area activated. Normal programming can continue for everyone else because speech quality audio only required 6 kbit/s using the xHE-AAC sound compression algorithm.
What happens in the USA now with emergency warnings?
Here in the US we have weather radios (and many VHF scanners too) with a specially coded squelch system listening for SAME codes.
See https://www.nws.noaa.gov/directives/sym/pd01017012curr.pdf
It has examples in the appendix of a tornado warning. Yes, the weather radio has to be powered up.
This system has been around a lot longer than DRM radios have been available. I suspect that DRM has probably leapfrogged over some of the shortcomings of the US system, but they’re both effective. Also, most phones here in the US will wake up and give warnings in the event of severe weather.
Looks exactly the same as I recall from 14 years years ago.
Initial damage assessment shows the place is worth more now than before the tornado.
Some people said they will miss the ‘geyser style’ toilet seats. Hams are a funny bunch.
I’m talking about the abandoned building only. Better for it to be remembered as being destroyed by natural disaster than a wrecking ball.
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My heart goes out to all the area residents. I was there last week for the Hamvention. Fortunately, reports so far do not mention any fatalities. Hope to be back soon.