The dying thunderbolt will NEVER be REMOVED, No idea what happened to the Hampton 2001-SRN I'd check with the city, The fedelcode you'd need to contact the city of grand island.
Also speaking of Nebraska's sirens, In my hometown, Norfolk Nebraska they had a 2T22 and a superbanshee, September 7th came BVPS removed both the next day they came into my possession i gave the 2T22 core away the superbanshee remains in my possession and will for a while.
The 2T22 has been replaced with the SuperBanshee in Norfolk, a new location has been added at 42.030198, -97.485978 all sites have 2001-130's now, Oh also i own the 2T22 and SuperBanshee .