Test of Emergency broadcast system in N Virgina 12/30 2 a.m.-4:10 a.m

Steve Mullin (31 Dec 2023)
"Test of Emergency broadcast system in N Virgina 12/30 2 a.m.-4:10 a.m"

Why in the middle of the night and for 2 hours? That's definitely not normal. She mentions 12/31/23 = 123 123 Is it a warning of some kind?

https://www.tiktok.com/t/ZT8CYgAkv/

Steve M