Both the CFS & EPS are forecasting a Convectively Coupled Kelvin Wave (CCKW) to reach the NE Pac in early June. Fwiw, the CFSv2 is forecasting a Central America Monsoon Gyre to develop in association w/ this CCKW, which may lead to tropical cyclogenesis in the E Pac or Atlantic pic.twitter.com/51QZHi6SZq

— Eric Webb (@webberweather) May 17, 2020