A cut-off low is expected to meander in the open north Atlantic this weekend and early next week.GFS thermodynamic environment could support subtropical/tropical transition, given enough time. Tropopause is low at 300 hPa, but theta-e profile is tropical-like below that. pic.twitter.com/hdO0V2V5fZ
-- Levi Cowan (@TropicalTidbits) April 17, 2019