ATL: JOSEPHINE - Remnants - Discussion

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xironman
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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#621 Postby xironman » Sat Aug 15, 2020 7:10 am

Looks a bit south and west of where it was expected. Right at the edge of the convection. Hard to see it hitting 19.6N by 11.
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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#622 Postby GCANE » Sat Aug 15, 2020 7:13 am

Possible CoC just west of the tower.

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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#623 Postby TropicalAnalystwx13 » Sat Aug 15, 2020 7:13 am

Recon finds Josephine very much struggling this morning as expected. The low-level circulation is on the very edge of convective activity, and the extrapolated pressure is up about 5mb to 1009mb versus the flight yesterday afternoon. The environment only becomes more hostile over the next 24 hours.

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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#624 Postby wx98 » Sat Aug 15, 2020 7:16 am

Looking pretty weak so far per recon. Let’s see if they find any wind to the east.
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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#625 Postby xironman » Sat Aug 15, 2020 7:30 am

wx98 wrote:Looking pretty weak so far per recon. Let’s see if they find any wind to the east.


You'd have to figure that the best winds would be under that convection. Definitely looks like it hit a wall of shear, but the further south it stays the better off it is.
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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#626 Postby GCANE » Sat Aug 15, 2020 7:38 am

Apparently, its the 355K PV Streamer that is the current problem.
We'll see how this holds up.
Could look bad this afternoon.

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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#627 Postby aspen » Sat Aug 15, 2020 7:44 am

If the CMC, ICON, and UKMET are right, Josephine could reform and become stronger in the central Atlantic. The 00z ICON even gets it to Cat 1 status next week. All we have to do is wait and put up with this mess of a storm, and hopefully it’ll become a more interesting fish system down the road.
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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#628 Postby aspen » Sat Aug 15, 2020 8:04 am

Recon is finding 40 kt SFMR readings, so it was a good call to maintain the 12z best track intensity at 40 kt.
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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#629 Postby GCANE » Sat Aug 15, 2020 8:09 am

All SFMR & rain-rate readings are being flagged.
However, there are 46 knot flight-level winds at 925 mb that are in the clear.
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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#630 Postby GCANE » Sat Aug 15, 2020 8:20 am

Strong, refiring tower with gravity waves north of the main convection.
If it holds together, it may try and cutoff the PV Streamer.
Main convection has a good moist boundary-layer infeed.
That was a good drop by recon.

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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#631 Postby GCANE » Sat Aug 15, 2020 8:22 am

One in-the-clear 30-sec-avg SFMR at 35 knots.
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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#632 Postby Jr0d » Sat Aug 15, 2020 8:25 am

Doubt it will maintain storm status today, I expect to really start to fall apart throughout the day...doubtful the remnants will do anything, but some of the less realiable hint at regeneration down the road.

Now lets watch that blob coming off Africa!
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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#633 Postby GCANE » Sat Aug 15, 2020 8:29 am

Now seeing some ice in the cirrus from the strat-cumulus clouds pushing away from the tower.
Looks like it may try and take out the PV Streamer.
Stay tuned.

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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#634 Postby GCANE » Sat Aug 15, 2020 8:43 am

47 knot in-the-clear flight-level close to the center.
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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#635 Postby GCANE » Sat Aug 15, 2020 8:45 am

Looks like the center is reforming, maybe more under the convection.
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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#636 Postby GCANE » Sat Aug 15, 2020 8:48 am

Yup, PV streamer is weakening.
I thought it would take longer.
See if this holds up.

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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#637 Postby GCANE » Sat Aug 15, 2020 8:55 am

Measured 1007mb at 17 knots FL.
Definitely strengthening.
See some improvement on the PVS impingement using UL WV.
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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#638 Postby Aric Dunn » Sat Aug 15, 2020 8:57 am

Poor models, hopefully they figure out what the problem is this year.. because i feel like we have back tracked 20 years in model reliability this year..
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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#639 Postby GCANE » Sat Aug 15, 2020 9:06 am

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Re: ATL: JOSEPHINE - Tropical Storm - Discussion

#640 Postby abajan » Sat Aug 15, 2020 9:07 am

GCANE wrote:Now seeing some ice in the cirrus from the strat-cumulus clouds pushing away from the tower.
Looks like it may try and take out the PV Streamer.
Stay tuned.

https://i.imgur.com/6ABE0aJ.png

Were/Are you an MD who's accustomed to viewing and interpreting x-rays? I'm seeing nada. :lol:
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