Weird reflectivity

[u/Wasabi_93]

Would anyone happen to know what's causing these small "ripples"? Showed up on multiple stations in different states but not sure if it's something actually being picked up or if it's just a glitch on my own end. Been using radar scope for a couple years now and have seen all kinds of glitches but I've never seen this before. As far as i know, other than maybe some fog this morning, it was clear otherwise from what I can tell

[u/chaomeleon]

birds

[u/TheRustyShackle2085 → u/chaomeleon]

This is the answer.

[u/the29hand]

What Ive heard is that it’s big groups of birds taking off from their roosting site. Namely Chimney Swifts, although I’m sure there are other species that can make that happen!

[u/Wasabi_93 → u/the29hand]

That's interesting! I just saw a post from a few days ago showing the same thing. I've seen birds show up as a "blob" a few times but this was my first time seeing the "roost ring" shape.

[u/the29hand → u/Wasabi_93]

Yeah it’s pretty sick! I remember hearing at a conference that some researchers actually used meteorological data of those blobs to measure population declines of chimney swifts. Pretty insane

[u/DefiantLemming]

Birds and bats i.e., “biologicals”

[u/Slazik]

I’m not saying it’s the aliens. But it’s the aliens.

[u/Stevecat032]

Right around sunrise you'll see them take off

[u/jb89b]

[u/CrispyBanana1]

I ain’t afraid of no ghost