Whether or not the low & mid-level vortex of #Henri stay aligned enough to move together (& feel deeper-layer steering) looks to be driving short-term track spread in the ECMWF EPS.
— Philippe Papin (@pppapin) August 19, 2021
A 350-km spread in 24-h forecast track solutions is remarkable. A cirital day in Henri's future. https://t.co/YcZHnOoguA pic.twitter.com/sDbbv0tBg0