An amplified jet-stream pattern has produced an unusual doldrum off the West Coast that’s persisted for most of the past 18…

“An amplified jet-stream pattern has produced an unusual doldrum off the West Coast that’s persisted for most of the past 18 months. Daniel Swain, a Stanford University meteorologist, has called it the “Ridiculously Resilient Ridge” — weather patterns just aren’t supposed to last this long.”

Eric Holthaus, ‘The point of no return: climate change nightmares are already here’ (2015)