[NLRS] Weird MSP Radar plot. What is this?

[Andrew Flowers]

John,

That's weird....I don't claim to be any kind of a  weather expert, but
this map has piqued my curiosity.  I wonder if it is some sort of
reflection close to the dome.  It looks like a pretty good hyperbola with
the center pointing right at the radar site.   I notice that all of the
reflection is within the "cone of silence" around the radar and nothing
outside.  It may be something that isn't really there. Of couse, I can't
explain the slow motion over the last hour!

If it is a natural phenomenon, it could be a turbulant boundry along a
front--same thing that one sometimes sees along the rain-cooled outflow
of big storms.  It seems to be moving at a reasonable speed for a frontal
boundry, but I don't see anything that would suggest this on the surface
plots.  I may have missed something.  I'm just as curious as you are.

I wish you and all the other NLRS folks in the Minneapolis area the best
if the world does end in the next few minutes though.  Looks like I got
home just in time ;)

Andy K0SM/EN10rt

hill195@mchsi.com wrote:

> If you get this in time please look at the loop of the MSP radar plot
> and tell me what is this phonemenon. I've never seen anything like
> it.
>
> http://www.crh.noaa.gov/radar/loop/DS.p19r0/si.kmpx.shtml
>
> 73, John, K0PW
>
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