'They are estimated to cause around $2.5 billion in damage every year in the U.S., with a single straight line wind storm causing an estimated $11 billion in damage in the Midwest in 2020.'

Some people just aren't getting how expensive extreme weather has become. And the very large increase in structural design and construction required to build 'resiiency'. As an extreme example, the typical above ground tornado shelter, built to FEMA standards, is $1000/sf.

https://www.newsweek.com/straight-line-wind-gusts-getting-more-powerful-1840295

On Fri, 3 Nov 2023 09:13:21 -0700 (PDT), Fred Bloggs
<bloggs.fredbloggs.fred@gmail.com> wrote:

>'They are estimated to cause around $2.5 billion in damage every year in the U.S., with a single straight line wind storm causing an estimated $11 billion in damage in the Midwest in 2020.'
>
>Some people just aren't getting how expensive extreme weather has become. And the very large increase in structural design and construction required to build 'resiiency'. As an extreme example, the typical above ground tornado shelter, built to FEMA standards, is $1000/sf.
>
>https://www.newsweek.com/straight-line-wind-gusts-getting-more-powerful-1840295

The tornado death rate has been declining since 1925.

https://inside.nssl.noaa.gov/nsslnews/2009/03/us-annual-tornado-death-tolls-1875-present/

It's now about 0.2 PPM/year in the USA. A $100K shelter values a human
life at $500 billion, $100 billion each for a family of five, assuming
they get into their shelter in time, which isn't especially likely.

On Saturday, November 4, 2023 at 10:45:43 AM UTC+11, john larkin wrote:
> On Fri, 3 Nov 2023 09:13:21 -0700 (PDT), Fred Bloggs
> <bloggs.fred...@gmail.com> wrote:
>
> >'They are estimated to cause around $2.5 billion in damage every year in the U.S., with a single straight line wind storm causing an estimated $11 billion in damage in the Midwest in 2020.'
> >
> >Some people just aren't getting how expensive extreme weather has become.. And the very large increase in structural design and construction required to build 'resiiency'. As an extreme example, the typical above ground tornado shelter, built to FEMA standards, is $1000/sf.
> >
> >https://www.newsweek.com/straight-line-wind-gusts-getting-more-powerful-1840295
> The tornado death rate has been declining since 1925.

Radio broadcast warning became possible around 1925, which probably save a few lives.

Weather radar - when it came into use - could pick up tornadoes earlier and from further away than visual observation.
>
> https://inside.nssl.noaa.gov/nsslnews/2009/03/us-annual-tornado-death-tolls-1875-present/
>
> It's now about 0.2 PPM/year in the USA. A $100K shelter values a human life at $500 billion, $100 billion each for a family of five, assuming they get into their shelter in time, which isn't especially likely.

Early warnings, broadcast direct to mobile phones in the affected area, could let people get into their shelters earlier.

--
Bill Sloman, Sydney