GFS fcsting midlat zonal mean u to rapidly decelerate at 10 hPa and reverse at 1 hPa. The season of the topsy-tervy #polarvortex continues pic.twitter.com/FGZTti48Am— Hannah Attard (@HannahAttard) January 16, 2017
GFS fcsting midlat zonal mean u to rapidly decelerate at 10 hPa and reverse at 1 hPa. The season of the topsy-tervy #polarvortex continues pic.twitter.com/FGZTti48Am