2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#582 Postby toad strangler » Sat Jun 17, 2023 8:24 am



1951 was nearly all open Atlantic recurves sans one true Caribbean Cruiser and near another CC that pooped out. So ya, bring on 1951!
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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#583 Postby WiscoWx02 » Sat Jun 17, 2023 11:10 am

toad strangler wrote:


1951 was nearly all open Atlantic recurves sans one true Caribbean Cruiser and near another CC that pooped out. So ya, bring on 1951!


I’m hoping for an active recurve season and an early one, Midwest looks dead this summer weather wise so it’ll be nice to have something else interesting to fall back on.
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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#584 Postby SFLcane » Sat Jun 17, 2023 2:48 pm

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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#585 Postby JetFuel_SE » Sat Jun 17, 2023 3:37 pm

toad strangler wrote:


1951 was nearly all open Atlantic recurves sans one true Caribbean Cruiser and near another CC that pooped out. So ya, bring on 1951!

Shows how even if recurves are favored during the season, timing is key.
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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#586 Postby Category5Kaiju » Sat Jun 17, 2023 11:53 pm

Wow, this is very interesting. It looks like the El Nino has been, in a way, stripped of its magical Pacific-boosting and Atlantic-destroying powers thanks to several other rather unfavorable factors.

 https://twitter.com/webberweather/status/1670189160869822465


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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#588 Postby ChrisH-UK » Sun Jun 18, 2023 4:33 am

The typical set up for an El Nino is a warm Pacific and a cool Atlantic with a large temperature difference. What we have at the moment is a hot Atlantic and a warm pacific even though the Pacific is in a El Nino that temperature gradient between the two is more like a neutral year abet a hot one.
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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#589 Postby aspen » Sun Jun 18, 2023 5:35 am

Category5Kaiju wrote:Wow, this is very interesting. It looks like the El Nino has been, in a way, stripped of its magical Pacific-boosting and Atlantic-destroying powers thanks to several other rather unfavorable factors.

https://twitter.com/webberweather/status/1670189160869822465

Seems like we could still get high Atlantic shear though, as Webb mentions the westerlies being able to migrate back south and dump anomalous shear into the basin.
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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#590 Postby weeniepatrol » Sun Jun 18, 2023 6:59 am

Trailing wave behind AL92 looks pretty good. Decent surface convergence into it, for now

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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#591 Postby NDG » Sun Jun 18, 2023 11:14 am

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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#592 Postby LarryWx » Sun Jun 18, 2023 12:43 pm



I remember the very dry AEWs last season that lasted for nearly the entire July and August. They started soon after one of the most impressive June AEWs, the one that later became Bonnie.
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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#593 Postby Cpv17 » Sun Jun 18, 2023 7:15 pm

What’s up with the cooling lately? Increased trades?
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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#594 Postby NDG » Mon Jun 19, 2023 8:01 am

Cpv17 wrote:What’s up with the cooling lately? Increased trades?


Yes but still at record warm levels for this time of the year, and as long as the SSTs from the Azores down to off the NW coast of Africa stay very warm the MDR is not going to cool down much every time we get a surge of easterly winds because the waters coming down to the MDR are warmer than average already.

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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#596 Postby cycloneye » Mon Jun 19, 2023 8:36 am

This fellow knows a lot about all of this.

 https://twitter.com/TylerJStanfield/status/1670786021989003270


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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#597 Postby Hypercane_Kyle » Mon Jun 19, 2023 8:59 am

IMHO, the extraordinarily active June we're having in the MDR is likely a harbinger for a hyperactive Cape Verde season, unless shear ticks up.
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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#598 Postby aspen » Mon Jun 19, 2023 9:28 am

Hypercane_Kyle wrote:IMHO, the extraordinarily active June we're having in the MDR is likely a harbinger for a hyperactive Cape Verde season, unless shear ticks up.

I’m still skeptical. The last two seasons have seen hyped-up early season MDR activity that immediately preceded long periods of hostile conditions and zero TC activity. 2021 had Hurricane Elsa before shutting off for a month. 2022 had the overhyped Bonnie, which ended up being too far south to amount to anything close to the aggressive GFS and Euro outputs, before going on an unprecedented two month slumber as a result of that crazy NW Atl marine heatwave. It’s totally possible that activity once again shuts off for a while starting in early July. Maybe the negative El Niño conditions are able to establish themselves far quicker than currently expected.
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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#599 Postby Kingarabian » Mon Jun 19, 2023 9:30 am

A big part of the El Nino = slow Atlantic season reasoning is the EPAC, as an active EPAC would create strong sinking motion over the Atlantic. If it becomes active then the Atlantic will slow down. Right now that's not the case.
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Re: 2023 Indicators (SST, SAL, MSLP, Wind shear, Steering, Instability) and Day 16+ Models

#600 Postby IsabelaWeather » Mon Jun 19, 2023 9:33 am

aspen wrote:
Hypercane_Kyle wrote:IMHO, the extraordinarily active June we're having in the MDR is likely a harbinger for a hyperactive Cape Verde season, unless shear ticks up.

I’m still skeptical. The last two seasons have seen hyped-up early season MDR activity that immediately preceded long periods of hostile conditions and zero TC activity. 2021 had Hurricane Elsa before shutting off for a month. 2022 had the overhyped Bonnie, which ended up being too far south to amount to anything close to the aggressive GFS and Euro outputs, before going on an unprecedented two month slumber as a result of that crazy NW Atl marine heatwave. It’s totally possible that activity once again shuts off for a while starting in early July. Maybe the negative El Niño conditions are able to establish themselves far quicker than currently expected.


I don't think it's fair to talk about Bonnie as a failure, had it not struck SA then it likely would have performed much better.
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