Perhaps it is not the kind of day-15 GFS forecast to get anyone excited, but today's 00Z run showed 100 hPa 60°N U-winds exceeding 30 m/s! Zonal winds above 30 m/s are very rare & would be a record for the time of year. In relative terms, it's as extreme as a big-time major SSW🌬️ pic.twitter.com/2Oa9MLrdMy

— Dr Simon Lee (@SimonLeeWx) February 5, 2022