Storms like Beryl are interesting to me because even though the storm has tropical structure it is also being fueled by baroclinic features. In the below water vapor image, I outlined a subtropical jet stream that is feeding the storm from the SW and strong northerly flow that is contributing to the "spin" on the west side of the system.
|TS Beryl is a hybrid that is powered by oceanic heat and|
baroclinic processes. She is close to hurricane strength.
Source: Univ of Wisconsin SSEC.
The question is: Will Beryl be The Lady or the Tiger?.