WPAC: CHANTHU - Post-Tropical

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cheezyWXguy
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Re: WPAC: CHANTHU - Typhoon

#341 Postby cheezyWXguy » Sat Sep 11, 2021 8:43 am

Structure appears to be quickly improving upon approach to Taiwan.
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Re: WPAC: CHANTHU - Typhoon

#342 Postby SconnieCane » Sat Sep 11, 2021 4:56 pm

Iceresistance wrote:I don't know what is going on with Chanthu (Kiko), but the typhoon is RAPIDLY weakening right now . . .

Northerly Wind Shear combined with Dry Air?

https://s9.gifyu.com/images/83391493.gif


Looked like the eye kept moving north while the system's overall envelope stalled. Don't know if I've ever seen anything quite like that before.
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Re: WPAC: CHANTHU - Typhoon

#343 Postby Hayabusa » Sat Sep 11, 2021 5:09 pm

Looks good again
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Re: WPAC: CHANTHU - Typhoon

#344 Postby sikkar » Sat Sep 11, 2021 7:04 pm

Man Taiwan has the luck of the devil to have avoided a direct hit like that. As for the Batanes they're still getting hammered by the trailing bands specially Itbayat.
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Re: WPAC: CHANTHU - Typhoon

#345 Postby doomhaMwx » Sat Sep 11, 2021 8:10 pm

The current organization/intensification might be being aided by the topography of Taiwan combined with the TC's poleward motion just offshore.

 https://twitter.com/YouStormorg/status/1436812267585097728


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Re: WPAC: CHANTHU - Typhoon

#346 Postby Yellow Evan » Sat Sep 11, 2021 8:16 pm

----- Current Analysis -----
Date : 12 SEP 2021 Time : 001000 UTC
Lat : 23:54:35 N Lon : 122:21:36 E


CI# /Pressure/ Vmax
5.7 / 948.6mb/107.2kt


Final T# Adj T# Raw T#
5.7 5.6 5.6

Estimated radius of max. wind based on IR : 13 km

Center Temp : -7.7C Cloud Region Temp : -68.4C

Scene Type : EYE

Subtropical Adjustment : OFF

Extratropical Adjustment : OFF
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Re: WPAC: CHANTHU - Typhoon

#347 Postby Yellow Evan » Sat Sep 11, 2021 8:20 pm

Image

T6.5. Probably 125 is the most reasonable estimate.
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Re: WPAC: CHANTHU - Typhoon

#348 Postby aspen » Sat Sep 11, 2021 8:25 pm

Yellow Evan wrote:https://cdn.discordapp.com/attachments/733552978572869632/886420093960085544/image0.jpg

T6.5. Probably 125 is the most reasonable estimate.

What a strange looking storm — and what a close call for Taiwan. It’s just a few dozen miles from a 120-130 kt landfall near Tapei.
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Re: WPAC: CHANTHU - Typhoon

#349 Postby mrbagyo » Sat Sep 11, 2021 9:37 pm

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Re: WPAC: CHANTHU - Typhoon

#350 Postby NotoSans » Sat Sep 11, 2021 10:34 pm

It’s precisely because it won’t make landfall over Taiwan that it can intensify. If Chanthu drifts west, dry air from the Central Mountain Range will be wrapped into the core before landfall. This effect is more significant on small TCs. Nepartak’s central pressure rises from 910mb (recorded by NTU buoy) to 940mb (recorded by Taiwan AWS) at landfall.
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Re: WPAC: CHANTHU - Typhoon

#351 Postby mrbagyo » Sat Sep 11, 2021 10:35 pm

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Last edited by mrbagyo on Sun Sep 12, 2021 9:57 am, edited 4 times in total.
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Re: WPAC: CHANTHU - Typhoon

#352 Postby Hayabusa » Sat Sep 11, 2021 11:06 pm

Taiwan dodges another direct typhoon hit, interesting, isn't this the longest typhoon drought for them?
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Re: WPAC: CHANTHU - Typhoon

#353 Postby doomhaMwx » Sun Sep 12, 2021 2:41 am

Very close call for Taiwan. The eye passed just ~30km (and eyewall just ~20km) from the country's northeastern tip. The drought of typhoon-strength landfall there that started in 2018 is remarkably long for such a typhoon-prone location!

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Re: WPAC: CHANTHU - Typhoon

#354 Postby 1900hurricane » Sun Sep 12, 2021 12:36 pm

Didn't go through obs for Taiwan, but looks like Chanthu brought a maximum gust of 88 kt with a minimum pressure of 989.4 mb to Yonaguni as the system passed a good deal to the west of the island.
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Re: WPAC: CHANTHU - Typhoon

#355 Postby Sciencerocks » Sun Sep 12, 2021 1:35 pm

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Re: WPAC: CHANTHU - Typhoon

#356 Postby underthwx » Sun Sep 12, 2021 1:38 pm



Looks like a powerful cyclone...thanks again for your help with information on Conson....and Kiko.....my fiancee also has family located in Batanes province as well....I'm concerned about their well being....can you provide any information about the impacts in that area?....thankyou so much for any information
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Re: WPAC: CHANTHU - Typhoon

#357 Postby sikkar » Sun Sep 12, 2021 4:39 pm

Chinese radar in play.
http://en.weather.com.cn/radar/
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Re: WPAC: CHANTHU - Typhoon

#358 Postby sikkar » Sun Sep 12, 2021 6:45 pm

Making the left turn now.
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Re: WPAC: CHANTHU - Typhoon

#359 Postby mrbagyo » Mon Sep 13, 2021 12:47 am

sikkar wrote:Chinese radar in play.
http://en.weather.com.cn/radar/


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Last edited by mrbagyo on Mon Sep 13, 2021 6:20 am, edited 5 times in total.
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Re: WPAC: CHANTHU - Typhoon

#360 Postby Sciencerocks » Mon Sep 13, 2021 1:45 am

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