ATL: HANNA - Remnants - Discussion

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Highteeld
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Re: ATL: EIGHT - Tropical Depression - Discussion

#661 Postby Highteeld » Thu Jul 23, 2020 7:52 pm

supercane4867 wrote:lol

https://i.imgur.com/J8xp44V.jpg


that could really confuse adt
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Re: ATL: EIGHT - Tropical Depression - Discussion

#662 Postby GCANE » Thu Jul 23, 2020 7:57 pm

supercane4867 wrote:lol

https://i.imgur.com/J8xp44V.jpg


A shrimp with a hole
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Re: ATL: EIGHT - Tropical Depression - Discussion

#663 Postby BYG Jacob » Thu Jul 23, 2020 7:57 pm

Transient feature, right? RIGHT!?
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Re: ATL: HANNA - Tropical Storm - Discussion

#664 Postby wxman57 » Thu Jul 23, 2020 7:58 pm

NDG wrote:
wxman57 wrote:Center is right next to a surface observation. Looks like pressure is about 1006mb. Winds, however, are still well below TS strength. This system looks so much better organized than "50kt" TS Gonzalo. I know the NHC doesn't like to indicate major fluctuations in intensity from advisory to advisory, but small storms are capable of massive swings in a short period of time. Not sure the plane will find TS winds this evening. However, the environment around it is much more favorable than the environment around Gonzalo.

http://wxman57.com/images/8g.JPG


You must have been typing this while the recon went through the CoC and found pressure down to around 1003mb :wink:


Yeah, saw that. That 1006.4 was about 23nm NE of the center. It was measured, though, not estimated. Pressure is lower, anyway. Still no TS winds, though.
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Re: ATL: EIGHT - Tropical Depression - Discussion

#665 Postby GCANE » Thu Jul 23, 2020 7:59 pm

IoT just opened up.
Starting to drink the EPAC juice.
Nothing down there to compete with.
Buckle up.

Image
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Re: ATL: EIGHT - Tropical Depression - Discussion

#666 Postby TROPICALCYCLONEALERT » Thu Jul 23, 2020 7:59 pm

GCANE wrote:
Kazmit wrote:
GCANE wrote:Clear evidence of eyewall building.
Large area of increasing helicity being detected slightly to the west.

https://i.imgur.com/RRswZvN.png

https://i.imgur.com/yToMfxU.gif

I've never heard of a tropical depression with an eyewall. :lol:



Clear evidence of eyewall building.

https://www.youtube.com/watch?v=1uB22YGvjE0



Press 'x' to doubt. I'd call it an eyewall if it was clearly rotating around a fixed center, and the storm had winds over, I don't know, 35 mph.
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Re: ATL: EIGHT - Tropical Depression - Discussion

#667 Postby NDG » Thu Jul 23, 2020 8:01 pm

First eyewall feature of a TD ever. :wink:

Image
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Re: ATL: EIGHT - Tropical Depression - Discussion

#668 Postby Highteeld » Thu Jul 23, 2020 8:01 pm

To think this is a TD, and Barry was a hurricane, haha

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: EIGHT - Tropical Depression - Discussion

#669 Postby TheStormExpert » Thu Jul 23, 2020 8:02 pm

Highteeld wrote:To think this is a TD, and Barry was a hurricane, haha

https://i.imgur.com/cxa1hLW.png

Barry was a half-cane. :lol:

Image
Last edited by TheStormExpert on Thu Jul 23, 2020 8:03 pm, edited 1 time in total.
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Re: ATL: HANNA - Tropical Storm - Discussion

#670 Postby NDG » Thu Jul 23, 2020 8:03 pm

wxman57 wrote:
NDG wrote:
wxman57 wrote:Center is right next to a surface observation. Looks like pressure is about 1006mb. Winds, however, are still well below TS strength. This system looks so much better organized than "50kt" TS Gonzalo. I know the NHC doesn't like to indicate major fluctuations in intensity from advisory to advisory, but small storms are capable of massive swings in a short period of time. Not sure the plane will find TS winds this evening. However, the environment around it is much more favorable than the environment around Gonzalo.

http://wxman57.com/images/8g.JPG


You must have been typing this while the recon went through the CoC and found pressure down to around 1003mb :wink:


Yeah, saw that. That 1006.4 was about 23nm NE of the center. It was measured, though, not estimated. Pressure is lower, anyway. Still no TS winds, though.


It wouldn't be long until winds catch up to that pressure drop, especially in the morning when deeper convection starts firing up.
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Re: ATL: EIGHT - Tropical Depression - Discussion

#671 Postby Highteeld » Thu Jul 23, 2020 8:06 pm

Pressure still falling
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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: EIGHT - Tropical Depression - Discussion

#672 Postby TheStormExpert » Thu Jul 23, 2020 8:06 pm

Fortunately this only has less than 48hrs. left over water.
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Re: ATL: EIGHT - Tropical Depression - Discussion

#673 Postby Steve » Thu Jul 23, 2020 8:08 pm

Though the "eye test" for tropical systems is mostly complete b.s. as relates to strength (trust the observations). 8 does look good. This looks to be the first of 3 or 4 pulses we can expect before landfall. It'll wane off a little when cloudtops warm, but this phase should help up the ante for the next one.
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Re: ATL: EIGHT - Tropical Depression - Discussion

#674 Postby supercane4867 » Thu Jul 23, 2020 8:09 pm

TheStormExpert wrote:
Highteeld wrote:To think this is a TD, and Barry was a hurricane, haha

https://i.imgur.com/cxa1hLW.png

Barry was a half-cane. :lol:

https://i.imgur.com/P3AHl69.jpg

That's not even half-a-shrimp but a uneatable shrimp tail.
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Re: ATL: EIGHT - Tropical Depression - Discussion

#675 Postby GCANE » Thu Jul 23, 2020 8:11 pm

1002.4 from 1002.8 mb
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Re: ATL: EIGHT - Tropical Depression - Discussion

#676 Postby ozonepete » Thu Jul 23, 2020 8:14 pm

TheStormExpert wrote:Fortunately this only has less than 48hrs. left over water.


But unfortunately that's enough time for an explosion. :(
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Re: ATL: EIGHT - Tropical Depression - Discussion

#677 Postby TexasSam » Thu Jul 23, 2020 8:14 pm

We haven't done it in a long time. Jump from T.D. to Hurricane.
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Re: ATL: EIGHT - Tropical Depression - Discussion

#678 Postby Aric Dunn » Thu Jul 23, 2020 8:19 pm

ozonepete wrote:
TheStormExpert wrote:Fortunately this only has less than 48hrs. left over water.


But unfortunately that's enough time for an explosion. :(


Yes ozonepete, and it seems to happen more often than not in this part of the Gulf.
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Re: ATL: EIGHT - Tropical Depression - Discussion

#679 Postby NDG » Thu Jul 23, 2020 8:19 pm

I just continue to be in love with its outflow. lol.

Image
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Re: ATL: EIGHT - Tropical Depression - Discussion

#680 Postby GCANE » Thu Jul 23, 2020 8:20 pm

Its going from a shrimp to a donut.
I am staying up for the vortex message.
Poppin a cold one, cranking CCR.

Image
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