Welcome, that is a good question, there has been lots of coverage here in regards to that , some of their old frequencies have shifted to P25 Digital (non trunked) hence why you might here noise on the original channel than they have also moved to the JIWN trunked state wide radio system, I listen to both on my travels down the I5 to Portland so I get statewide coverage when I pass thru a different region,
At the very least you require a new generation of Digital trunking scanner ,
personal faves are Uniden BCD436/536 series or new Whistler TRX-1/2 , not sure about RS anymore.
either will do the job above & beyond, and open up more listening opportunities, especially in your state.
Up to you which one you choose, you must read up on what P25 is here and than what is trunking, and move forward from there.
At least this site is your one stop shop, you could buy used or new depending on budget but expect a steeper entry price point for digital, also both scanners include database from this website that has preloaded freq for what you want to hear. ie
lug in your zip and it preloads systems around your geographical area.
Good luck on your hunt for new scanner , exciting times they are.