ATL: ETA - Post-Tropical - Discussion

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Re: ATL: ETA - Hurricane - Discussion

#2161 Postby SconnieCane » Mon Nov 02, 2020 10:35 pm

For those who missed...further intensification into a Cat. 5 and re-intensification into a tropical storm after re-emergence both explicitly forecast on the new advisory. :double:
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Re: ATL: ETA - Hurricane - Discussion

#2162 Postby aspen » Mon Nov 02, 2020 10:35 pm

Probably 135 kt/922 mbar based on this pass.
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Re: ATL: ETA - Hurricane - Discussion

#2163 Postby ElectricStorm » Mon Nov 02, 2020 10:36 pm

SconnieCane wrote:For those who missed...further intensification into a Cat. 5 and re-intensification into a tropical storm after re-emergence both explicitly forecast on the new advisory. :double:

It's not very often NHC explicitly shows a Cat 5 forecast...
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Re: ATL: ETA - Hurricane - Discussion

#2164 Postby Blinhart » Mon Nov 02, 2020 10:36 pm

aspen wrote:Probably 135 kt/922 mbar based on this pass.


I don't know about the wind speed of 135 knots but the pressure has to be lower than 922.
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Re: ATL: ETA - Hurricane - Discussion

#2165 Postby SouthDadeFish » Mon Nov 02, 2020 10:36 pm

One has to wonder if the very slow forward motion will lead to upwelling issues at some point.
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Re: ATL: ETA - Hurricane - Discussion

#2166 Postby aspen » Mon Nov 02, 2020 10:38 pm

Blinhart wrote:
aspen wrote:Probably 135 kt/922 mbar based on this pass.


I don't know about the wind speed of 135 knots but the pressure has to be lower than 922.

There was an unflagged SFMR reading close to 135 kt.
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Re: ATL: ETA - Hurricane - Discussion

#2167 Postby Kazmit » Mon Nov 02, 2020 10:40 pm

This thread absolutely died after that first pass :lol:
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Re: ATL: ETA - Hurricane - Discussion

#2168 Postby ClarCari » Mon Nov 02, 2020 10:40 pm

Neither planes have reported for 20+ minutes. Dual transmissions issues?
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Re: ATL: ETA - Hurricane - Discussion

#2169 Postby Owasso » Mon Nov 02, 2020 10:45 pm

Image
A gust?
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Re: ATL: ETA - Hurricane - Discussion

#2170 Postby ElectricStorm » Mon Nov 02, 2020 10:46 pm


Likely a gust but GEEZ :eek: :eek:
Although it is pretty consistent with the wind a little higher up so we'll see.
Last edited by ElectricStorm on Mon Nov 02, 2020 10:47 pm, edited 1 time in total.
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Re: ATL: ETA - Hurricane - Discussion

#2171 Postby Hypercane_Kyle » Mon Nov 02, 2020 10:46 pm

Image
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Re: ATL: ETA - Hurricane - Discussion

#2172 Postby aspen » Mon Nov 02, 2020 10:46 pm


Oh wow....special advisory coming? That could be enough to upgrade to a Cat 5 (not a high end 5, just a normal 5).
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Re: ATL: ETA - Hurricane - Discussion

#2173 Postby NDG » Mon Nov 02, 2020 10:47 pm

Dropsonde measured 155 knots at the surface.

940mb (27.76 inHg) Surface (Sea Level) 25.8°C (78.4°F) 25.1°C (77°F) 135° (from the SE) 155 knots (178 mph)
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Re: ATL: ETA - Hurricane - Discussion

#2174 Postby Iceresistance » Mon Nov 02, 2020 10:47 pm

Hypercane_Kyle wrote:Image

That is a undoubted CAT 5.
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Re: ATL: ETA - Hurricane - Discussion

#2175 Postby ClarCari » Mon Nov 02, 2020 10:48 pm

Iceresistance wrote:
Hypercane_Kyle wrote:https://i.imgur.com/Fa6Nx91.png

That is a undoubted CAT 5.

Not quite yetttt but with more sampling this will def be a Cat.5 pretty quick.
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Re: ATL: ETA - Hurricane - Discussion

#2176 Postby Hypercane_Kyle » Mon Nov 02, 2020 10:48 pm

155 knots was a gust, but the average wind over the lowest 150 meters of the sounding was 154 knots. Good case for Cat 5, IMO.
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Re: ATL: ETA - Hurricane - Discussion

#2177 Postby Owasso » Mon Nov 02, 2020 10:48 pm

Last edited by Owasso on Mon Nov 02, 2020 10:48 pm, edited 1 time in total.
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Re: ATL: ETA - Hurricane - Discussion

#2178 Postby ElectricStorm » Mon Nov 02, 2020 10:48 pm

Iceresistance wrote:
Hypercane_Kyle wrote:https://i.imgur.com/Fa6Nx91.png

That is a undoubted CAT 5.

A lot of times dropsondes are gusts but it's pretty much a certainty this will be a Cat 5 now/soon.
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Re: ATL: ETA - Hurricane - Discussion

#2179 Postby Iceresistance » Mon Nov 02, 2020 10:49 pm

It looks like the Tropical Tidbits Recon site has crashed!
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Re: ATL: ETA - Hurricane - Discussion

#2180 Postby Chris90 » Mon Nov 02, 2020 10:49 pm

These eyewall drops remind me of Dorian. Strongest winds seem concentrated in the lowest layer of the eyewall, so SFMR exceeding flight level would make sense.
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