When initially digging into the GREMLIN product (since I had never seen or worked with it before), I wanted to see how it looked in comparison to reflectivity products that I use daily. Loading a 4P with MRMS RALA in the top left, GREMLIN in the top right, and KTLX/KSRX base reflectivity in the bottom left and right, respectively, helped me visualize the differences. One thing I noticed is that the GREMLIN product had an odd jump in dBZ into Okfuskee County at 19:50Z Mon 19-May-25 that was not reflected by the base reflectivity products. This appears to be because GREMLIN’s view is from the top down rather than the top up, so it’s sampling more of the lightning in the anvil blowing off downstream to the north, causing an apparent downstream jump in reflectivity. I think this would be useful in anticipating where downstream convection is going to grow based on the lightning presence and anvil presentation on the satellite view with GREMLIN.

– millibar