The CFSv2 is having a difficult time in predicting how things will evolve after the highly anticipated "Sudden Stratospheric Warming Event"; Will the stratospheric warmth linger for weeks after? Or will we see immediate cooling take place as suggested by yesterday's 18Z cycle? pic.twitter.com/ioEGcAg8UZ

— Mike Ventrice (@MJVentrice) February 9, 2018