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WPAC, Indian Ocean, and Southern Hemisphere Tropical Cyclones


1900hurricane
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Typhoon Koinu now is an 80kts typhoon as per JTWC advisory, so it getting up there into Cat-2 type strength. Most of the rest of the JTWC forecast is similar to what I posted yesterday. JTWC now has 105 knots before a likely landfall at southern Taiwan. It is always interesting to see the -90 C cloud tops for the West Pacific tropical storms/typhoons due to the high tropopause or just simply the high topped convection over those warm waters.

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Koinu looking absolutely nuts. It is maxing out at 105 knots now, but will weaken to 85 knots while it is east of Taiwan, and approach southern Taiwan. The landfall forecast has not changed much, except for a few miles. If you check the most recent HWRF, the model might not have been initialized correctly, and then the forecast is completely wrong for some awful reason.

 

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typhoon koinu.jpg

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  • 2 weeks later...
1 hour ago, Windspeed said:

A rare case of low shear over the NIO with the TC positioned perfectly under vast anticyclonic flow aloft. This may very well become a Category 4 on Sunday local time there. Expected to make landfall near the Yemen-Oman border and most likely major flooding for both countries.
b774e1aeedec47cb640478a55d91ce37.gif

Those cloud tops! Sign of things to come in the future. Hyper canes, when OHC crosses 200kj

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