^I'd argue that we entered decadal patterns starting in the 1980s.. especially with regards to the NAO/AO. It's actually been a 50-year positive cycle, and now we've seen the PNA negative since 1998, but that can happen with cold over Montana and the Upper Midwest. I just don't think you should use recent trends as a baseline for global warming.. there is some decadal flux, just like how the 60s/70s were colder/better patterns for snow.