Yes, Alaska has a system very close to Washington State's AHAB system which is basically a chain of Modulator sirens alongside the coastlines.

Thanks for the locations yall! Just got them in.

Umatilla in Oregon had a lot of failures with it's Whelen system during 1994-2001. Post-2001, they had some ghost-activations but that's about it.

On a school field trip to great falls, I spotted some roof-mounted DSAs all across this area near Great Falls. https://www.google.com/maps/@38.9774555,-77.1939512,3a,15y,210.54h,92.05t/data=!3m7!1e1!3m5!1swnOF3uM4e0-uhypodB7yRg!2e0!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3F...

Added, thanks.

Thanks! I am a Virginia native so I gotta represent one way or another ey?

Bridgewater's siren is still extant. Here's Dec 2022 street view of the siren. https://www.google.com/maps/@38.383905,-78.9735424,3a,29.1y,11.82h,105.48t/data=!3m7!1e1!3m5!1sAF1QipMd6t7tjnAxmQhXFxcm14-RzVluN5AHx4_mQm55!2e10!3e11!7i5376!8i2688 I'm pretty sure google maps shifted the location of the p...

Since I am pretty brainy on it's topic, Trojan NPP had the most unique NPP system. It was diverse with Federal Signal sirens until 1984 and 1987 when PGE trickled in some Whelens into the mix. After both of the purchases and installs, the final siren count was brought up from 186 to 191. The sirens ...

Yeah I was about to say. TMI decommissioned back in September of 2019.

During the CSEPP program in Umatilla, their system was tripped on many various occasions, the most notorious occurring on Dec 31, 1999 IIRC.