RMM MJO amplitude is approaching 4.0 sigma, virtually record territory for phase 6! When the MJO was initialized in phase 5 several days ago & as expected from Kim et al (2014), the EPS underestimated the intensity of this MJO event in the WP while the GFS was practically spot on pic.twitter.com/7jIzonB5Ai

— Eric Webb (@webberweather) January 31, 2018