In the northern latitudes warmer than average SST can be a sign of subsidence in the atmosphere, ala high pressure. Ahead of the warm water there is increased troughing which you can see occurring in the Pacific NW, but after it moves far enough south and east there should be enhanced marine heat wave activity. I would expect coastal areas to have much higher than average temperatures starting around the solstice. Subsidence from developing La Nina should mean a suppressed subtropical jet stream with less of a low level moisture component. I think the theme this year could be: marine heatwaves, subsequently enhanced heatwaves inland due to less of a cooling component from the ocean, chaotic monsoon.
Understanding the ‘times’ we are in now there is most likely going to be a lightning event of epic proportions in August/September across the west into Canada, I do not think any of this can be changed at this point.