[OKDXA] Impending Ice Storm

[Kim Elmore]

Hi Coy,

Yes, it said 2"-3" for the Jan storm and 3" for the Dec storm. Wind 
is a terror for anythinh when ice comes down: the ice is deposited on 
wires and tubing with a crude airfoil shape and when that happens, 
the thing get really jiggy in the wind. I recall seeing large 
transmission lines galloping during an ice storm in the 70's -- to 
the extent that they arced between phases. Il ived in the dorms on 
campus at the time and watched from the 11th floor of Walker Tower. 
Luckily, OU generates its own power so, while much of Norman went 
dark, the lights stayed on everywhere on campus.

Ice storms have few, if any, redeeming qualities.

Kim, N5OP

At 09:39 AM 1/11/2007, you wrote:
>Kim,
>
>I think the wording below the pix tell how much ice was on the elements.
>The storm that took out the KT-34XA was not all that windy.  The 2nd ice
>storm had winds 45 to 50 mph.  That is what actually broke the T-12 in
>half.  I had it pointed into the wind but that didn't help.  It starting
>galloping, maybe undulating is a better word.  Anyway, it eventually broke
>in half and the front of the antenna went airborne over the top of the
>back part.  I watched it happen and was in tears.
>
>Coy
>--
>Coy Day, N5OK
>20685 SW 29
>Union City, OK 73090
>405-483-5632
>
>Kim Elmore wrote:
> > Yeah, I]m in the middle, too. I fear I'm going to see similar stuff
> > to your pictures here. I'm curious as to whether you had much wind
> > during the storm -- I don't recall much about that event, other than
> > we dodged the bullet in the Norman area. Also, any idea as to how
> > much ice it took to bring them down? I' assuming that they failed
> > well before the ice was over. I'm guessing that much over an inch or
> > so will do in my 40 m beam. The KLM may take a bit more -- maybe 1.5"
> > or so, before it fails. Should the wind blow much, I'll bet it'll
> > take less ice to destroy the antennas. And, I believe that we're
> > expecting some significant winds later in the event. Yee-haw.
> >
> > I hate ice: snow by the foot, or even sleet, I'll happily deal with,
> > but ice is bad for everything.
> >
> > Kim
> >
> > At 07:50 AM 1/11/2007, you wrote:
> >>Kim,
> >>
> >>Thanks a lot.  I live right in the middle of that corridor!  If you
> >>haven't seen them before take a look at
> >>http://www.westgulfdivision.org/wgddir.htm for pictures of what my 40m
> >>beam and KT-34XA looked like after an ice storm.
> >>
> >>Coy
> >>--
> >>Coy Day, N5OK
> >>20685 SW 29
> >>Union City, OK 73090
> >>405-483-5632
> >>
> >>Kim Elmore wrote:
> >> > Looks like the corridor along I-44, from Wichita Fall though Tulsa
> >> > will bear the brunt of the approaching storm, and it looks like it
> >> > will almost all be ice. Dang!  And I just got all my antennas up and
> >> > working just like I wanted. Hopefully, my ARRL Insurance will be in
> >> > effect by the time anything bad happens (I faxed the application and
> >> > payment yesterday). I've had my KLM KT-34A and Cushcraft 40CD2 for a
> >> > long time -- I'll miss sure them if they come down.
> >> >
> >> > As a non-DX related aside, I'm heading a project that examines
> >> > dual-polarization radar data and compares what that radar sees with
> >> > precipitation type. There's a web page for the project
> >> > (http://www.nssl.noaa.gov/projects/winter06/) linked off of the
> >> > National Severe Storms Laboratory home page. My project maintains an
> >> > on-line form on which the public can enter their observations of
> >> > precipitation type. Between snagging new ones, I'd appreciate some
> >> > observations of precipitation type from your QTH if your within
> >> > 90-100 mi of Norman.
> >> >
> >> > Stay warm!
> >> >
> >> > Kim Elmore, N5OP
> >> >
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> >> >
> >>
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