2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1421 Postby Blown Away » Tue Jul 20, 2021 6:50 am

SFLcane wrote:All in all about 3 weeks before the switch flips.


Yes, you can feel it in the SFL air, it almost feels like late August/early September already, hint of La Nina conditions out there. It wouldn't surprise me if mid August things start popping.
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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1422 Postby NotSparta » Tue Jul 20, 2021 7:02 am

SFLcane wrote:EPS weeklies control with a classic late August active look. Just a matter of time folks!

https://i.postimg.cc/9FpcJNym/71-C02382-6531-4163-9-C89-C344-ADFACB81.jpg


My fall classes start the first day of that period, wouldn't be surprised if that's when the tropics really wake up :lol:
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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1423 Postby SFLcane » Tue Jul 20, 2021 7:04 am

Blown Away wrote:
SFLcane wrote:All in all about 3 weeks before the switch flips.


Yes, you can feel it in the SFL air, it almost feels like late August/early September already, hint of La Nina conditions out there. It wouldn't surprise me if mid August things start popping.


I expect the waves to start getting perky around August 10th or so. Maybe the pulse will speed up a little bit we'll see. We haven't really had an MDR storm before August 25th or so that lasted in quite a long time.
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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1424 Postby aspen » Tue Jul 20, 2021 7:23 am

SFLcane wrote:
Blown Away wrote:
SFLcane wrote:All in all about 3 weeks before the switch flips.


Yes, you can feel it in the SFL air, it almost feels like late August/early September already, hint of La Nina conditions out there. It wouldn't surprise me if mid August things start popping.


I expect the waves to start getting perky around August 10th or so. Maybe the pulse will speed up a little bit we'll see. We haven't really had an MDR storm before August 25th or so that lasted in quite a long time.

With the suppressive Kelvin Wave moving out within the next 10-14 days and the Euro showing exceptionally favorable VP anomalies for August 3rd-9th, I won’t be surprised if the Atlantic starts to come alive as early as the first week of August. Maybe another AEW system forms, or maybe there’s a strong wave that develops into something significant later. Plus, SSTs are currently favorable for development as East as around 40W as long as the ITCZ remains at a low latitude, and they could be favorable for genesis as north as 15N in the MDR (east of 60W) by early August. In my opinion, the stage seems set for at least one system forming from a tropical wave between when the suppressive CCKW leaves the basin and mid-August.
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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1425 Postby SFLcane » Tue Jul 20, 2021 7:58 am

aspen wrote:
SFLcane wrote:
Blown Away wrote:
Yes, you can feel it in the SFL air, it almost feels like late August/early September already, hint of La Nina conditions out there. It wouldn't surprise me if mid August things start popping.


I expect the waves to start getting perky around August 10th or so. Maybe the pulse will speed up a little bit we'll see. We haven't really had an MDR storm before August 25th or so that lasted in quite a long time.

With the suppressive Kelvin Wave moving out within the next 10-14 days and the Euro showing exceptionally favorable VP anomalies for August 3rd-9th, I won’t be surprised if the Atlantic starts to come alive as early as the first week of August. Maybe another AEW system forms, or maybe there’s a strong wave that develops into something significant later. Plus, SSTs are currently favorable for development as East as around 40W as long as the ITCZ remains at a low latitude, and they could be favorable for genesis as north as 15N in the MDR (east of 60W) by early August. In my opinion, the stage seems set for at least one system forming from a tropical wave between when the suppressive CCKW leaves the basin and mid-August.


Keep in mind that EPAC cell will impart some shear til it weakens. The Africa VP200 looks favorable so Waves might get going that first week of August.
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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1426 Postby cycloneye » Tue Jul 20, 2021 8:19 am

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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1427 Postby AutoPenalti » Tue Jul 20, 2021 8:42 am


Climo most likely.
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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1428 Postby cycloneye » Tue Jul 20, 2021 10:22 am

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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1429 Postby cycloneye » Tue Jul 20, 2021 11:00 am

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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1430 Postby SFLcane » Tue Jul 20, 2021 11:03 am



Yep! Enjoy the quiet times now. Sleeping giant waking up soon
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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1431 Postby toad strangler » Tue Jul 20, 2021 11:04 am



This is what I have been most worried about, A ripe Atlantic in August with perhaps ugly 500mb steering to produce possibly a track or two we haven't seen a quite awhile in the SW portion of the basin. :eek:
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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1432 Postby AlphaToOmega » Tue Jul 20, 2021 11:11 am

I feel like this August could rival the August of 2004. That is a very favorable VP anomaly pattern.
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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1433 Postby Category5Kaiju » Tue Jul 20, 2021 11:11 am

Yikes, while July may be extremely quiet, if that pattern from Ben Noll does verify, I could plausibly see us getting a very busy August and perhaps at least 5 NSs form during the month. Definitely a not so great sign for what's to come.
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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1434 Postby Category5Kaiju » Tue Jul 20, 2021 11:15 am

AlphaToOmega wrote:I feel like this August could rival the August of 2004. That is a very favorable VP anomaly pattern.


We had 7 NSs form that year in August. If this year does rival that with such a predicted favorable VP, we could theoretically reach the L or M storm by the month's end. Oof.
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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1435 Postby SFLcane » Tue Jul 20, 2021 11:23 am

toad strangler wrote:


This is what I have been most worried about, A ripe Atlantic in August with perhaps ugly 500mb steering to produce possibly a track or two we haven't seen a quite awhile in the SW portion of the basin. :eek:


Definitely! I could see a few tc’s tracking similar to Irma with the z500 being predicted by the models. Obviously lots of factors come into play
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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1436 Postby Category5Kaiju » Tue Jul 20, 2021 11:26 am

SFLcane wrote:
toad strangler wrote:


This is what I have been most worried about, A ripe Atlantic in August with perhaps ugly 500mb steering to produce possibly a track or two we haven't seen a quite awhile in the SW portion of the basin. :eek:


Definitely! I could see a few tc’s tracking similar to Irma with the z500 being predicted by the models. Obviously lots of factors come into play


Hopefully it does not happen of course, but I do think that with the predicted steering, low shear, etc., at some point during this season, I do personally think that there is a decent chance that there will be a major hurricane in the Strait of Florida like Irma, Donna, or the 1935 hurricane.
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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1437 Postby SFLcane » Tue Jul 20, 2021 11:45 am

But……

Image
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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1438 Postby AlphaToOmega » Tue Jul 20, 2021 11:45 am



I am pretty sure instability was below-average for a while, even in 2020.
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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1439 Postby aspen » Tue Jul 20, 2021 11:46 am


How does this compare to last August? I remember there was also talk about it being quite active, but then it behaved like a normal August with things only kicking off in the last week or two with Laura and Marco.
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Re: 2021 Indicators: SST's / SAL / MSLP / Shear / Steering / Instability / Sat Images

#1440 Postby cycloneye » Tue Jul 20, 2021 11:50 am

aspen wrote:

How does this compare to last August? I remember there was also talk about it being quite active, but then it behaved like a normal August with things only kicking off in the last week or two with Laura and Marco.


Unless someone posts archives about that, I may have to search Mr Nolls tweets of 2020.
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