ATL: DORIAN - Post-Tropical - Discussion

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eastcoastFL
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Re: ATL: DORIAN - Tropical Storm - Discussion

#261 Postby eastcoastFL » Sat Aug 24, 2019 11:34 pm

AutoPenalti wrote:I’m still on the no development train.


No development as in... further development ? It’s already a TS
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Re: ATL: DORIAN - Tropical Storm - Discussion

#262 Postby eastcoastFL » Sat Aug 24, 2019 11:37 pm

Stormi wrote:So basically it's harder for models to get a better grasp on smaller storms not simply due to their size, but because of possible fluctuations of intensity that can occur much faster than with larger storms? That would make sense along with less shear needed to RIP up a smaller storm vs a larger one. This is why I ask :wink:


Yah with these little storms they can hit warm waters and low shear and just blow up in intensity. At that same time they can hit a hostile environment and just go poof.
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Re: ATL: DORIAN - Tropical Storm - Discussion

#263 Postby tiger_deF » Sat Aug 24, 2019 11:38 pm

As of right now during Dmin it appears to be struggling, the already small area of cloud cover has decreased and the convection is very warm
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Re: ATL: DORIAN - Tropical Storm - Discussion

#264 Postby AutoPenalti » Sat Aug 24, 2019 11:45 pm

eastcoastFL wrote:
AutoPenalti wrote:I’m still on the no development train.


No development as in... further development ? It’s already a TS

No further development.
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Re: ATL: DORIAN - Tropical Storm - Discussion

#265 Postby abajan » Sun Aug 25, 2019 1:28 am

I don't know if it's just an illusion, but latest satellite imagery seems to indicate it's already made the predicted WNW turn.
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Re: ATL: DORIAN - Tropical Storm - Discussion

#266 Postby AtlanticWind » Sun Aug 25, 2019 1:37 am

abajan wrote:I don't know if it's just an illusion, but latest satellite imagery seems to indicate it's already made the predicted WNW turn.

Don't know if true WNW yet, but I agree it seems to be gaining lattitude
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Re: ATL: DORIAN - Tropical Storm - Discussion

#267 Postby Highteeld » Sun Aug 25, 2019 2:54 am

abajan wrote:I don't know if it's just an illusion, but latest satellite imagery seems to indicate it's already made the predicted WNW turn.



Image

05L DORIAN 190825 0600 10.9N 51.0W ATL 35 1008
05L DORIAN 190825 0000 10.8N 49.9W ATL 35 1008
05L DORIAN 190824 1800 10.6N 48.7W ATL 35 1008
05L DORIAN 190824 1200 10.4N 47.5W ATL 30 1010
05L DORIAN 190824 0600 10.3N 46.4W ATL 25 1011
05L DORIAN 190824 0000 10.2N 45.3W ATL 25 1012
05L DORIAN 190823 1800 10.0N 43.5W ATL 25 1012
05L DORIAN 190823 1200 9.8N 41.7W ATL 25 1012
05L DORIAN 190823 0600 9.6N 40.4W ATL 20 1012
05L DORIAN 190823 0000 9.5N 39.0W ATL 20 1009
05L DORIAN 190822 1800 9.5N 37.3W ATL 15 1009
05L DORIAN 190822 1200 9.5N 35.9W ATL 15 1009
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Re: ATL: DORIAN - Tropical Storm - Discussion

#268 Postby Kingarabian » Sun Aug 25, 2019 3:42 am

tolakram wrote:I believe it was Derek Ort's thesis that discussed how dry air is mainly an issue when shear is present. Shear is the main issue at the moment, if and when it lets up we'll see what happens.

Correct. Seen this on many occasions in the EPAC.
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Re: ATL: DORIAN - Tropical Storm - Discussion

#269 Postby Kingarabian » Sun Aug 25, 2019 3:50 am

A curved band formed in the past few hours and in regular cases would mean some sort of RI is in the cards. But due to the dry air, the convective band has a broken appearance.
Image

Still needs to chug out the dry air.
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Re: ATL: DORIAN - Tropical Storm - Discussion

#270 Postby TheStormExpert » Sun Aug 25, 2019 3:56 am

A slow but steady trend downward in the intensity forecast.
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Re: ATL: DORIAN - Tropical Storm - Discussion

#271 Postby Highteeld » Sun Aug 25, 2019 4:35 am

Just a bunch of blobs right now

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

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Re: ATL: DORIAN - Tropical Storm - Discussion

#272 Postby NDG » Sun Aug 25, 2019 6:32 am

Circulation is still healthy but still some slight easterly shear and some dry air intrusion from the east in the mid levels could be going against it at least at this moment.

Image
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Re: ATL: DORIAN - Tropical Storm - Discussion

#273 Postby SFLcane » Sun Aug 25, 2019 7:15 am

Let the back peddling begin.. On the next advisory they will probably just keep it as a TS.
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Re: ATL: DORIAN - Tropical Storm - Discussion

#274 Postby TheStormExpert » Sun Aug 25, 2019 7:16 am

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Re: ATL: DORIAN - Tropical Storm - Discussion

#275 Postby TheStormExpert » Sun Aug 25, 2019 7:24 am

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Re: ATL: DORIAN - Tropical Storm - Discussion

#276 Postby wxman57 » Sun Aug 25, 2019 7:29 am

Models are trending farther south with the track - into even stronger wind shear across the eastern Caribbean. I don't think it will survive for long past the Lesser Antilles. NHC will continue to lower the predicted intensity below hurricane strength today. May peak at 40-45 kts.
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Re: ATL: DORIAN - Tropical Storm - Discussion

#278 Postby wxman57 » Sun Aug 25, 2019 7:48 am

Big change in the new HWRF - peak wind 46 kts No more hurricane. I have it peaking at 49 kts and dissipating before reaching the DR.
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Re: ATL: DORIAN - Tropical Storm - Discussion

#279 Postby Highteeld » Sun Aug 25, 2019 8:12 am

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: DORIAN - Tropical Storm - Discussion

#280 Postby Aric Dunn » Sun Aug 25, 2019 8:26 am

Easterly shear will be slacking off later today and for a good 12 to 24 hours before the SW shear starts is when this will likely ramp up.
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