ATL: DELTA - Post-Tropical - Discussion

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GCANE
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Re: ATL: DELTA - Tropical Storm - Discussion

#581 Postby GCANE » Mon Oct 05, 2020 5:48 pm

LSU2001 wrote:By nail do you mean enhance the chances of RI or decrease the chance of RI?

Enhance it.
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Re: ATL: DELTA - Tropical Storm - Discussion

#582 Postby Blinhart » Mon Oct 05, 2020 5:50 pm

Hasn't it already classified as RI?? If not how much more would it have to go up to be considered RI? and what would it take for ERI?
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Re: ATL: DELTA - Tropical Storm - Discussion

#583 Postby GCANE » Mon Oct 05, 2020 5:56 pm

Big cold pool at 550mb to the west of Delta.
This indicates high lapse rate and therefore lift.
The infeed of high TPW air being injected into Delta from Gamma is hitting this creating the enhanced convection.
Big old Carnot heat engine is firing on all cylinders.

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Re: ATL: DELTA - Tropical Storm - Discussion

#584 Postby Keldeo1997 » Mon Oct 05, 2020 6:00 pm

Image

:double:
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Re: ATL: DELTA - Tropical Storm - Discussion

#585 Postby edu2703 » Mon Oct 05, 2020 6:02 pm

976.3 extrapoled
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Re: ATL: DELTA - Tropical Storm - Discussion

#586 Postby drezee » Mon Oct 05, 2020 6:02 pm

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Re: ATL: DELTA - Tropical Storm - Discussion

#587 Postby supercane4867 » Mon Oct 05, 2020 6:05 pm

18z HWRF is showing a 935mb Yucatan landfall but even that maybe too conservative for peak intensity. Simu IR suggests T7.0+

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Re: ATL: DELTA - Tropical Storm - Discussion

#588 Postby aspen » Mon Oct 05, 2020 6:05 pm

Not nearly as much of a pressure drop as last time, but this pass might be enough for Delta to be upgraded to a hurricane.
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Re: ATL: DELTA - Tropical Storm - Discussion

#589 Postby Hammy » Mon Oct 05, 2020 6:07 pm

Anybody else getting Wilma vibes?
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Re: ATL: DELTA - Tropical Storm - Discussion

#590 Postby supercane4867 » Mon Oct 05, 2020 6:09 pm

Hammy wrote:Anybody else getting Wilma vibes?

We have been getting it all day today...
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Re: ATL: DELTA - Tropical Storm - Discussion

#591 Postby Aric Dunn » Mon Oct 05, 2020 6:10 pm

Image
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Re: ATL: DELTA - Tropical Storm - Discussion

#592 Postby ElectricStorm » Mon Oct 05, 2020 6:11 pm

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Re: ATL: DELTA - Tropical Storm - Discussion

#593 Postby shiny-pebble » Mon Oct 05, 2020 6:12 pm

aspen wrote:Not nearly as much of a pressure drop as last time, but this pass might be enough for Delta to be upgraded to a hurricane.

I would imagine it's trying to mix winds down. Very very low pressure for a TS/C1. We might not see huge pressure drops for the next few hours like we did this evening.
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Re: ATL: DELTA - Tropical Storm - Discussion

#594 Postby Keldeo1997 » Mon Oct 05, 2020 6:12 pm

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Re: ATL: DELTA - Tropical Storm - Discussion

#595 Postby Fancy1001 » Mon Oct 05, 2020 6:13 pm

supercane4867 wrote:
Hammy wrote:Anybody else getting Wilma vibes?

We have been getting it all day today...

I think I was the first to say it.
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Re: ATL: DELTA - Tropical Storm - Discussion

#596 Postby aspen » Mon Oct 05, 2020 6:14 pm

985.6 to 973.6 mbar extrapolated between 19:38z and 22:56z yields a mean intensification rate of 2.8 mb/hr, which could get back up to ~4 mbar/hr as the eyewall further solidifies. This rate of intensification is fast enough for Delta to be in the mid to low 940s by 7am tomorrow morning.
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Re: ATL: DELTA - Tropical Storm - Discussion

#597 Postby GCANE » Mon Oct 05, 2020 6:18 pm

Satellite radar 1.5 hrs ago

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Re: ATL: DELTA - Tropical Storm - Discussion

#598 Postby EquusStorm » Mon Oct 05, 2020 6:19 pm

It's rare that it can be said category five is actually a distinct possibility, but this may be one of those cases IF the eyewall completely closes off and it keeps deepening for 36 hours or so... ridiculous to think this thing was only named overnight
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Re: ATL: DELTA - Tropical Storm - Discussion

#599 Postby GCANE » Mon Oct 05, 2020 6:20 pm

Feeder band going to town too now.
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Re: ATL: DELTA - Tropical Storm - Discussion

#600 Postby Hypercane_Kyle » Mon Oct 05, 2020 6:21 pm

New VDM confirms a closed eyewall with Delta. Pressure down to 981 mb.
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