Weaker ECMWF run this afternoon for #91L likely due to a much larger upper-level low compared to what forecasts were showing a couple days ago. This will impart more southerly shear on the system for longer, causing it to struggle until it moves further NW. pic.twitter.com/mPgM9W2Zd4

— Andy Hazelton (@AndyHazelton) August 29, 2022