The extratropical transition of Fiona is well underway, with its remaining CDO resembling Pac-Man.

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The latest (12Z) HWRF and HMON runs show an absolutely RIDICULOUSLY intense post-tropical hurricane hitting on Saturday at 6 AM.
914 mbar? That would be the strongest landfalling extratropical storm anywhere in the WORLD.

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is developing a signature on satellite that looks peculiarly akin to a sting jet found in some extratropical cyclones. A region of subsidence / descending air is present on the southwestern side of the LLC (blue) which is a hallmark of these features. Interesting.

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An extratropical cyclone taking shape in the South Atlantic.

Yesterday's view via GOES-East: https://t.co/pmt6sIBk2v.

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20W (#MINDULLE) WARNING NR 014

WARNING POSITION:
25.18:00Z --- NEAR 18.5N 137.0E
MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT
WIND RADII VALID OVER OPEN WATER ONLY
BECOMING

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台風14号がtropicalってたのが消滅、爆散extratropicalになったからワンチャンいけると思ってるヤツがここにいいます。

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has become an strong extratropical cyclone.
Beautiful!!
is very lucky to couple with upper level trough and becomes a powerful bomb.

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Now that is extratropical, we can look back on its lifecycle from disturbance to tropical storm to extratropical system. This loop shows 5-minute Band 13 (infrared) imagery because Arthur remained within the CONUS ABI sector the entire time.

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On the Maine coast, a “nor’easter” is a storm of exceptional violence and duration. It is a macro-scale extratropical cyclone in the western North Atlantic ocean. 🏛 Northeaster by Winslow Homer 1895-1901 📖📲 https://t.co/vrbxHNWLvQ

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