re: TS Jerry, TS Karen & More Areas to Watch - Peak Season

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Please put it in terms we can easily understand

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Tropical systems like to have their centers stacked vertically. Better for symmetry and organization. Sometimes though, especially when they are forming and weak, the low level spin isn't aligned with the mid-level. Typically thanks to shear pushing it away.

It's like having the oline not on the same page on a play, it's going to be messy.

The upper low is just something in front of it (westish) throwing wind at it opposed to the direction it's moving. If it stays there, the shear stays and it can never get very strong at all.