There are quite a few scattered throughout Texarkana, Arkansas, including one at Texarkana AR FD 3, one by Northern Hills Baptist Church, and one on the north side of Texarkana High School that indirectly replaced a Thunderbolt. Benton Louisiana also has a 508.
Most towns in south Texas have sirens that they use for tornadoes, such as Goliad, Refugio, Agua Dulce, Robstown, Kingsville... But not Corpus Christi. The only sirens in the entire CC city limits are electronic sirens used for refinery alarms. Considering the city's size and climate, I would've gue...
I've never caught a K5HLB, but I have video'd two 3rd Gen K5HLA horns on UP 7929 and 2590, as well as one on what I think was UP 2752 that sounds like a K5LLA.