Wild Green Blob Shown On Radar in KY | Weather
So a meteorologist friend of mine pointed out a very interesting phenomenon taking place just outside of Louisville earlier tonight. If you look above you will notice that on conventional nexrad radar you can see a "green blog" that was moving from the northwest towards the southeast. In the past we as meteorologists would figure it was just rain, but with totally clear skies there was no way it was just rain.
Well, the national weather service in Louisville, KY just went through the same upgrade that we did last year.. they are now Dual Pol radar which is a radar that captures the particles in the air on the horizontal and vertical axis. What this does is lets us compare the height and width of the particle... If the vertical is shorter than the horizontal, then it is a raindrop that as it falls has the shape of a Hershey's kiss since the bottom is encountering wind resistance. If it is the same in both directions, or very close to it, it is a pellet of sleet or hail. if it very different it is then something of unknown origin like debris in a tornado, of bats....
I will save the full explanation for another date, but by using a product in the new Dual Pol called ZDR we are able to tell that this green blob is a biological return!! It is a flock of birds flying south for the winter LOL!!! Isn't that wild that we can now tell this from this new upgrade??
Remember I am always tracking the weather on my facebook page, come join the 8000+ fans that get all kinds of weather and other stuff: MIKE'S FACEBOOK PAGE.