ATL: HANNA - Remnants - Discussion

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Re: ATL: HANNA - Tropical Storm - Discussion

#1161 Postby Aric Dunn » Fri Jul 24, 2020 8:27 pm

Kazmit wrote:A monster in the making. Someone get an aircraft carrier out there so recon can refuel and stay there all night. :lol:


They Probably should be doing continuous flights at this point..
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Re: ATL: HANNA - Tropical Storm - Discussion

#1162 Postby Hammy » Fri Jul 24, 2020 8:27 pm

Aric Dunn wrote:
Kazmit wrote:A monster in the making. Someone get an aircraft carrier out there so recon can refuel and stay there all night. :lol:


They Probably should be doing continuous flights at this point..


When's the next flight, 8am?
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Re: ATL: HANNA - Tropical Storm - Discussion

#1163 Postby Aric Dunn » Fri Jul 24, 2020 8:28 pm

Its a hurricane..
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Re: ATL: HANNA - Tropical Storm - Discussion

#1164 Postby NDG » Fri Jul 24, 2020 8:28 pm

There she goes!

012230 2736N 09407W 8416 01533 0026 +183 //// 123061 062 044 011 01
012300 2734N 09408W 8416 01530 0022 +184 //// 123060 062 044 010 01
012330 2732N 09409W 8416 01525 0023 +178 //// 123064 066 044 012 01
012400 2731N 09410W 8411 01527 0019 +176 //// 127071 072 045 019 01
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Re: ATL: HANNA - Tropical Storm - Discussion

#1165 Postby gatorcane » Fri Jul 24, 2020 8:28 pm

Convection looks to be shrinking to me again on the NW side. Might be some dry air it is taking in, not a lot but enough to keep any RI from happening:

https://www.tropicaltidbits.com/sat/sat ... product=ir
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Re: ATL: HANNA - Tropical Storm - Discussion

#1166 Postby Hammy » Fri Jul 24, 2020 8:29 pm

NDG wrote:There she goes!

012230 2736N 09407W 8416 01533 0026 +183 //// 123061 062 044 011 01
012300 2734N 09408W 8416 01530 0022 +184 //// 123060 062 044 010 01
012330 2732N 09409W 8416 01525 0023 +178 //// 123064 066 044 012 01
012400 2731N 09410W 8411 01527 0019 +176 //// 127071 072 045 019 01


Surface winds aren't quite there yet.
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Re: ATL: HANNA - Tropical Storm - Discussion

#1167 Postby Highteeld » Fri Jul 24, 2020 8:29 pm

FL winds are well over hurricane force, that's interesting
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Re: ATL: HANNA - Tropical Storm - Discussion

#1168 Postby Aric Dunn » Fri Jul 24, 2020 8:30 pm

NDG wrote:There she goes!

012230 2736N 09407W 8416 01533 0026 +183 //// 123061 062 044 011 01
012300 2734N 09408W 8416 01530 0022 +184 //// 123060 062 044 010 01
012330 2732N 09409W 8416 01525 0023 +178 //// 123064 066 044 012 01
012400 2731N 09410W 8411 01527 0019 +176 //// 127071 072 045 019 01


and that is not even in the eyewall yet or in the deepest convection..
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Re: ATL: HANNA - Tropical Storm - Discussion

#1169 Postby tropicwatch » Fri Jul 24, 2020 8:30 pm

Looks like the first significant storm of the season brewing.
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Re: ATL: HANNA - Tropical Storm - Discussion

#1170 Postby Aric Dunn » Fri Jul 24, 2020 8:31 pm

the EYE is definitely clearing out on satellite now.
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Re: ATL: HANNA - Tropical Storm - Discussion

#1171 Postby NDG » Fri Jul 24, 2020 8:31 pm

Hammy wrote:
NDG wrote:There she goes!

012230 2736N 09407W 8416 01533 0026 +183 //// 123061 062 044 011 01
012300 2734N 09408W 8416 01530 0022 +184 //// 123060 062 044 010 01
012330 2732N 09409W 8416 01525 0023 +178 //// 123064 066 044 012 01
012400 2731N 09410W 8411 01527 0019 +176 //// 127071 072 045 019 01


Surface winds aren't quite there yet.


My point is earlier today the highest flight level winds were in the mid 40s if memory serves me correct, not up to at least 72 knots, that's a nice increase
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Re: ATL: HANNA - Tropical Storm - Discussion

#1172 Postby northjaxpro » Fri Jul 24, 2020 8:31 pm

Not quite a cane yet, but she is getting very close. Maybe by 11 p.m.
Last edited by northjaxpro on Fri Jul 24, 2020 8:32 pm, edited 1 time in total.
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Re: ATL: HANNA - Tropical Storm - Discussion

#1173 Postby CrazyC83 » Fri Jul 24, 2020 8:31 pm

Based on current data blending the SFMR, FL winds and surface data, 55 kt seems a good estimate - but more data could increase that.
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Re: ATL: HANNA - Tropical Storm - Discussion

#1174 Postby Highteeld » Fri Jul 24, 2020 8:32 pm

One thing i have noticed is that the strongest sfmr data point doesn't always correspond to the strongest FL wind data point (strongest SFMR will happen closer to the eye compared to FL winds)... wonder if that's due to the stadium effect (IE the strongest winds aren't vertically aligned)
Last edited by Highteeld on Fri Jul 24, 2020 8:32 pm, edited 1 time in total.
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https://severe.worldweather.wmo.int/TCF ... kBeven.pdf

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Re: ATL: HANNA - Tropical Storm - Discussion

#1175 Postby wx98 » Fri Jul 24, 2020 8:32 pm

This next set from recon will be telling...
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Re: ATL: HANNA - Tropical Storm - Discussion

#1176 Postby HurricaneEdouard » Fri Jul 24, 2020 8:32 pm

Aric Dunn wrote:surface ob.. now 995 mb and gusting 40mph winds !

we might be sub 990 already.

those meso vorts in the eye wall are a sure sign..

Which surface ob is that (link/copy+paste if possible)? :D Lowest (extrap) surface pressures I've seen from this pass is 1001 mb (nowhere near the eyewall yet, though).

39 knots from a dropsonde at 1:18Z. 72 knot FL winds, 45 knot SFMR at 1:24. So far, a blend would be around 55 to 60 knots... but this next recon ob is going to be very, very interesting. Let's see if surface catches up to FL!
Last edited by HurricaneEdouard on Fri Jul 24, 2020 8:36 pm, edited 2 times in total.
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Re: ATL: HANNA - Tropical Storm - Discussion

#1177 Postby aspen » Fri Jul 24, 2020 8:32 pm

72 kt FL winds!
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Re: ATL: HANNA - Tropical Storm - Discussion

#1178 Postby Hammy » Fri Jul 24, 2020 8:33 pm

Small dry slot to the west seems like it's filling back in.
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Re: ATL: HANNA - Tropical Storm - Discussion

#1179 Postby NDG » Fri Jul 24, 2020 8:33 pm

gatorcane wrote:Convection looks to be shrinking to me again on the NW side. Might be some dry air it is taking in, not a lot but enough to keep any RI from happening:

https://www.tropicaltidbits.com/sat/sat ... product=ir


You don't give up, don't you. :wink:
RI may not happen but both GFS, HWRF and Euro continue to show strengthening until landfall.
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Re: ATL: HANNA - Tropical Storm - Discussion

#1180 Postby Aric Dunn » Fri Jul 24, 2020 8:33 pm

Still have to sample the remainder of the everything.. it will likely be upgraded.
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