Now you see it... now you don't.
— Dr Simon Lee (@SimonLeeWx) March 1, 2022
Not an SSW, but the mid-stratospheric zonal-mean polar night jet is almost eradicated in the next 7 days as part of the vortex splits off. Forecasts continue to suggest this will be a short-lived event with recovery swiftly following. pic.twitter.com/PjyBywGwQt