KIMA would have KEPR as option #1, KOMO as option #2, and I assume KATU as option #3. But with WA and OR under the threat of worse times to come, perhaps they could feed into KBOI-TV in Boise?
KNDO's sisters are KHQ and KULR.
KAPP would have KXLY as the #1 standby and possibly as far away as WISC for further options.
Could newscasts start to unite for a region if things get very dire? Ala United Broadcasters of New Orleans post-Katrina, but with 4 stations in two states sharing the newscast? I could see personalities from KING, KGW, KREM and KTVB banding up for a 3-state newscast ala the old NWCN.