ATL: NANA - Remnants - Discussion

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Highteeld
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Re: ATL: NANA - Tropical Storm - Discussion

#321 Postby Highteeld » Tue Sep 01, 2020 12:08 pm

Image
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Very useful information on the Dvorak Technique --

https://severe.worldweather.wmo.int/TCF ... kBeven.pdf

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Re: ATL: NANA - Tropical Storm - Discussion

#322 Postby HurricaneEnzo » Tue Sep 01, 2020 12:11 pm

Whether it be because of missing flight data or 'upgrades' that need to be reverted it definitely seems like the models have take a significant step back this season. I tend to lean towards the former and not the latter. I will say these 'micro' storms like Nana have proven difficult to get a handle on in the past as well though.
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Re: ATL: NANA - Tropical Storm - Discussion

#323 Postby CrazyC83 » Tue Sep 01, 2020 12:12 pm

Next Recon is this evening?
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Re: ATL: NANA - Tropical Storm - Discussion

#324 Postby eastcoastFL » Tue Sep 01, 2020 12:13 pm

Nana intensity

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Re: ATL: NANA - Tropical Storm - Discussion

#325 Postby Extratropical94 » Tue Sep 01, 2020 12:15 pm

CrazyC83 wrote:Next Recon is this evening?


Yup, scheduled to depart at 3:30pm EDT
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Re: ATL: NANA - Tropical Storm - Discussion

#326 Postby Highteeld » Tue Sep 01, 2020 12:16 pm


I'm looking forward to 18z guidance with the input of an eyewall and TS winds.
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Very useful information on the Dvorak Technique --

https://severe.worldweather.wmo.int/TCF ... kBeven.pdf

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Re: ATL: NANA - Tropical Storm - Discussion

#327 Postby tropicwatch » Tue Sep 01, 2020 12:17 pm

Recon already headed to the hacienda. :cry:
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Re: ATL: NANA - Tropical Storm - Discussion

#328 Postby cheezyWXguy » Tue Sep 01, 2020 12:17 pm

Needs to refire some convection over the center is it’s going to keep strengthening like this. Cloud tops seem to be warming
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Re: ATL: NANA - Tropical Storm - Discussion

#329 Postby Aric Dunn » Tue Sep 01, 2020 12:18 pm

cheezyWXguy wrote:Needs to refire some convection over the center is it’s going to keep strengthening like this. Cloud tops seem to be warming


normal process.
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Re: ATL: NANA - Tropical Storm - Discussion

#330 Postby Aric Dunn » Tue Sep 01, 2020 12:19 pm

HWRF/HMON were dead on two days ago.

but being they were fed with incorrect ASCAT and other data they lost it.
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Re: ATL: NANA - Tropical Storm - Discussion

#331 Postby aspen » Tue Sep 01, 2020 12:21 pm

cheezyWXguy wrote:Needs to refire some convection over the center is it’s going to keep strengthening like this. Cloud tops seem to be warming

It is dmin right now. It’ll probably start firing more once it hits Dmax.
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Re: ATL: NANA - Tropical Storm - Discussion

#332 Postby Hypercane_Kyle » Tue Sep 01, 2020 12:31 pm

New VDM now shows the eye as closed.

F. Eye Character: Closed
G. Eye Shape & Diameter: Circular with a diameter of 6 nautical miles
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Re: ATL: NANA - Tropical Storm - Discussion

#333 Postby cheezyWXguy » Tue Sep 01, 2020 12:31 pm

aspen wrote:
cheezyWXguy wrote:Needs to refire some convection over the center is it’s going to keep strengthening like this. Cloud tops seem to be warming

It is dmin right now. It’ll probably start firing more once it hits Dmax.

Agreed, I think DMAX will be pretty generous to it tonight, I am just thinking it will probably level off for a bit until then. Hurricane seems like a lock at this point and I believe cat2 by landfall isn’t very far fetched if it capitalizes on DMAX tonight.
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Re: ATL: NANA - Tropical Storm - Discussion

#334 Postby ScottNAtlanta » Tue Sep 01, 2020 12:34 pm

Hypercane_Kyle wrote:New VDM now shows the eye as closed.

F. Eye Character: Closed
G. Eye Shape & Diameter: Circular with a diameter of 6 nautical miles


That is significant...it should start to really take off now. That is really small even for a small storm
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Re: ATL: NANA - Tropical Storm - Discussion

#335 Postby plasticup » Tue Sep 01, 2020 12:36 pm

Earliest 14th named storm ever, beating 2005's Hurricane Nate by 4 days.
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Re: ATL: NANA - Tropical Storm - Discussion

#336 Postby CrazyC83 » Tue Sep 01, 2020 12:37 pm

ScottNAtlanta wrote:
Hypercane_Kyle wrote:New VDM now shows the eye as closed.

F. Eye Character: Closed
G. Eye Shape & Diameter: Circular with a diameter of 6 nautical miles


That is significant...it should start to really take off now. That is really small even for a small storm


I think the next Recon flight may find a hurricane at this rate.
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Re: ATL: NANA - Tropical Storm - Discussion

#337 Postby chaser1 » Tue Sep 01, 2020 12:38 pm

ScottNAtlanta wrote:
Hypercane_Kyle wrote:New VDM now shows the eye as closed.

F. Eye Character: Closed
G. Eye Shape & Diameter: Circular with a diameter of 6 nautical miles


That is significant...it should start to really take off now. That is really small even for a small storm


For sure! Six mile wide eye? That could potentially deepen like a boss!
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Re: ATL: NANA - Tropical Storm - Discussion

#338 Postby CrazyC83 » Tue Sep 01, 2020 12:40 pm

chaser1 wrote:
ScottNAtlanta wrote:
Hypercane_Kyle wrote:New VDM now shows the eye as closed.



That is significant...it should start to really take off now. That is really small even for a small storm


For sure! Six mile wide eye? That could potentially deepen like a boss!


That's what I call the dreaded pinhole eye!
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Re: ATL: NANA - Tropical Storm - Discussion

#339 Postby CyclonicFury » Tue Sep 01, 2020 12:43 pm

Hard to believe there's a closed eye already. Nana still seems to be dealing with some easterly shear (which is rather unusual in the Caribbean) since the center is on the eastern edge of the convection, but once this shear relaxes, we could see some more pronounced intensification.
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Re: ATL: NANA - Tropical Storm - Discussion

#340 Postby GCANE » Tue Sep 01, 2020 12:48 pm

63 mm/hr rain rate.
Theta-e rapidly deepening to 382.
Should explode around sunset or later in evening.
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