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Robert,

>Why did you even bother to write?  Sounds like you've already
>judged my project as impossible.  What good did your government
>agency the NOAA system for Orlando Florida in Spring 97?
>They did not have a warning system in place.  How many died?

I think you're misunderstanding my point. I would be delighted to see some
unique way other than Doppler radar to "detect" tornadoes and/or tornadic
signatures. However, in my opinion, without placing remote sensing equipment
every few hundred feet (wind/pressure), I do not think that your proposal can
be achieved. More importantly, my writings are my opinions only, and not
necessarily those of my colleagues or the NWS. The government and private
sectors must work together, not separately, if we're to quickly advance
tornado research. Regarding your case, I'm not in Florida, and have no idea
which event you're talking about...but keep in mind that "my" government
agency is also "your" government agency. I'm also sure that you're extremely
qualified in what you do, but keep in mind that my opinions come from a
meteorological perspective, not an electronics one.

Now, regarding the changes in barometric pressure near a tornado, the most
rapid change in pressure occurs very close to the core of the tornado (much
like a hurricane), resulting in the destructive winds caused by it. Someone
from Project VORTEX or other studies may have some real numerical data for
you, and the only data I have on station follows in the next paragraph. Keep
in mind that a tornado's winds are directly related to the pressure
gradient...so that a weaker tornado would have a much higher ambient
barometric pressure. Therefore, doing some quick number crunching, it would
appear to me that one would have to be within several thousand feet maximum of
a tornado, to record enough of a pressure drop to signify the onset of a
tornado. At that distance, a warning detection device would leave to no time
to react before the onset of damage.

"On December 14, 1971, a tornado which began to the immediate southwest of
Republic, cut a swath through the city of Republic, and moved directly
northeast to pass over WSO SGF at 1125 PM CST. The entire terminal building
received considerable damage. The gust recorder reached past the maximum of
100 knots. One cup was blown from the anemometer even though the anemometer
was about 1000 ft from the center of the tornado path. The barograph dipped
abruptly to a station pressure of 27.52 inches(sea level 28.83")."

Sincerely,
Evan

P.S. With a college degree, I sure hope you'd spell it correctly.

Robert Miller wrote:

> ----- Original Message -----
> From: "Evan Bookbinder" <Evan.Bookbinder@noaa.gov>
> To: <stargazr@alltel.net>
> Sent: Tuesday, August 14, 2001 8:41 AM
> Subject: Tornado Warning Device
>
> > Robert,
> >
> > You're not serious are you? Unlike lightning, which has a distinct
> > electromagnetic field, or smoke/radon/carbon monoxide which omit unique
> > properties that can be detected by a sensor...there is no way to "detect
> > or sense" a tornado, especially one that has yet to develop. If this
> > were true, we would have 100% verification statistics on tornado
> > warnings. There is much unknown about the formation of tornadoes, and
> > since most tornadoes have winds < 100 mph, your attempt is not much more
> > than a wasted effort. Even the roar of a tornado cannot always be heard,
> > and usually it's too late by then.
> >
> > The best early warning device is a NOAA weather radio or an Internet
> > warning device that can alert people when a tornado warning is issued by
> > the National Weather Service. These are small and cheap enough to go
> > into people's homes, and many own them already. There are projects
> > underway to fund free radios to those who cannot otherwise afford these
> > devices (especially in mobile homes).
> >
> > Anyways, back to the point at hand, while a great venture and idea, it
> > simply cannot be done at this given stage of understanding the science
> > behind tornadoes. You're probably the 20th person to come up with this
> > idea since I've been a member of this newsgroup, so this definitely
> > isn't something new.
> >
> > Have a good one.
> >
> > -Evan
> >
> > Evan Bookbinder
> > Meteorologist
> > NWS Springfield, MO
> >
> >
> >
> Why did you even bother to write?  Sounds like you've already
> judged my project as impossible.  What good did your government
> agency the NOAA system for Orlando Florida in Spring 97?
> They did not have a warning system in place.  How many died?
> Do not think the private sector can not come up a practical and
> workable system.
>
> My design may not be perfect but it will not be so difficult as you
> seem to think.  Without going into detail for obvious reasons.  I have
> a serious design that will save lives.
>
> What I need to know is the barometric signature of a near miss to
> direct hit of a tornado.   If you can't or wont help me go back to
> you ivory tower on high.
>
> Robert Miller
>
> P.S.
> If I sound to harsh I'm sorry, but do you know how many times I've
> had a collage educated government employee tell me something can
> not be done?
>
> P.S.S.
> I also have a collage degree in electronics and digital circuits!  If I
> can't
> do something I'm smart enough to figure that out for myself.  Thank-you!

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