IF this is the real storm track (highly uncertain), what it's doing right there is going asea to pick up steam, --- err, water vapor -- before blowing back inland to energetically dump even more water on it's NW edge. Yay.
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The width of this warning cone is the equivalent of 100 meteorologists and a bunch of computers shrugging:
https://www.nhc.noaa.gov/refresh/graphics_at4+shtml/094141.shtml?cone#contents
/nosanitize
