The track forecast of #Henri is strongly related to the short-term intensity of the storm. This is related to vortex depth & if low + mid-level vortex remain aligned enough to move in tandem.

Shear strong enough that separation has increased between the LLV and MLV on microwave. pic.twitter.com/8N7RmgO1Tr

— Philippe Papin (@pppapin) August 19, 2021