ATL: TEDDY - Post-Tropical - Discussion

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Re: ATL: TEDDY - Hurricane - Discussion

#801 Postby dukeblue219 » Mon Sep 21, 2020 9:49 pm

Teddy is back to 100mph at 11pm.
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Re: ATL: TEDDY - Hurricane - Discussion

#802 Postby PavelGaborik10 » Mon Sep 21, 2020 11:17 pm

Teddy is looking extremely impressive right now.

What a monster.

Are there anymore flights scheduled anytime soon?
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Re: ATL: TEDDY - Hurricane - Discussion

#803 Postby ElectricStorm » Mon Sep 21, 2020 11:23 pm

Racing away from Bermuda
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Re: ATL: TEDDY - Hurricane - Discussion

#804 Postby ClarCari » Mon Sep 21, 2020 11:32 pm

PavelGaborik10 wrote:Teddy is looking extremely impressive right now.

What a monster.

Are there anymore flights scheduled anytime soon?

Tomorrow morning!
Looks like the last flight.
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Re: ATL: TEDDY - Hurricane - Discussion

#805 Postby Chris90 » Tue Sep 22, 2020 12:15 am

Honestly surprised they're still doing recon flights on a storm in this position that is starting to transition. Teddy is clearly still a powerhouse though. 105kt FL and 65kt SFMR seems fairly good to me though for a storm that is transitioning. He's been one of the most interesting storms to watch this year.
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Re: ATL: TEDDY - Hurricane - Discussion

#806 Postby supercane4867 » Tue Sep 22, 2020 6:25 am

Image
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Re: ATL: TEDDY - Hurricane - Discussion

#807 Postby aspen » Tue Sep 22, 2020 6:40 am


Teddy’s cloud field is so big, I might be able to see the outer bands here in far western Connecticut.

TS-force winds extend out to a maximum of 345 miles according to the NHC, so the wind diameter of Teddy is nearly 700 miles across!
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Re: ATL: TEDDY - Hurricane - Discussion

#808 Postby aspen » Tue Sep 22, 2020 8:26 am

Recon is finding extrapolated pressures in the mid 940s!
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Re: ATL: TEDDY - Hurricane - Discussion

#809 Postby us89 » Tue Sep 22, 2020 8:27 am

Starting to look extratropical to me, with not much in the way of deep convection near the center.
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Re: ATL: TEDDY - Hurricane - Discussion

#810 Postby SconnieCane » Tue Sep 22, 2020 8:30 am

us89 wrote:Starting to look extratropical to me, with not much in the way of deep convection near the center.


Very Sandy-like, enormous post-tropical cyclone with the pressure of a solid Category 3 hurricane. Fortunately for the U.S., occurring several hundred miles to the east.
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Re: ATL: TEDDY - Hurricane - Discussion

#811 Postby gfsperpendicular » Tue Sep 22, 2020 8:35 am

Fairly steep pressure gradient too despite the extratropical appearance.
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Re: ATL: TEDDY - Hurricane - Discussion

#812 Postby JRD » Tue Sep 22, 2020 9:07 am

Surface maps of the Ocean Prediction Center find a warm front and a cold front. The warm front seems connected to the center or at least close to it, while the cold front seems merely embedded in the circulation. Possibly it has to do with the formation of a warm seclusion. Cyclone phase analysis shows Teddy as being an asymmetric deeply warm-cored cyclone. Windy and other wind maps find a low wind speed near the center, despite Teddy's increasingly extratropical nature.
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Re: ATL: TEDDY - Hurricane - Discussion

#813 Postby BigB0882 » Tue Sep 22, 2020 9:59 am

aspen wrote:

Teddy’s cloud field is so big, I might be able to see the outer bands here in far western Connecticut.

TS-force winds extend out to a maximum of 345 miles according to the NHC, so the wind diameter of Teddy is nearly 700 miles across!


Well, that is not exactly how that works. The TS winds may extend out 345 miles from the center but that doesn't mean it does so in a perfect circle. That 345 miles may only be in the NE quadrant, while winds on the SW quadrant may only extend out 50 miles. Just as an example. Some storms are more uniform than others, though. I haven't paid close attention to Teddy to know if his wind field is consistent in all quadrants.
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Re: ATL: TEDDY - Hurricane - Discussion

#814 Postby aspen » Tue Sep 22, 2020 10:04 am

BigB0882 wrote:
aspen wrote:

Teddy’s cloud field is so big, I might be able to see the outer bands here in far western Connecticut.

TS-force winds extend out to a maximum of 345 miles according to the NHC, so the wind diameter of Teddy is nearly 700 miles across!


Well, that is not exactly how that works. The TS winds may extend out 345 miles from the center but that doesn't mean it does so in a perfect circle. That 345 miles may only be in the NE quadrant, while winds on the SW quadrant may only extend out 50 miles. Just as an example. Some storms are more uniform than others, though. I haven't paid close attention to Teddy to know if his wind field is consistent in all quadrants.

It’s pretty close to symmetrical as of 11am. It’s still uneven (360 nmi NE and 270 nmi SW) and has a diameter of 630 nmi, or 725 miles.
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Re: ATL: TEDDY - Hurricane - Discussion

#815 Postby gfsperpendicular » Tue Sep 22, 2020 10:05 am

BigB0882 wrote:
aspen wrote:

Teddy’s cloud field is so big, I might be able to see the outer bands here in far western Connecticut.

TS-force winds extend out to a maximum of 345 miles according to the NHC, so the wind diameter of Teddy is nearly 700 miles across!


Well, that is not exactly how that works. The TS winds may extend out 345 miles from the center but that doesn't mean it does so in a perfect circle. That 345 miles may only be in the NE quadrant, while winds on the SW quadrant may only extend out 50 miles. Just as an example. Some storms are more uniform than others, though. I haven't paid close attention to Teddy to know if his wind field is consistent in all quadrants.


Here are the TS wind radii. So about 630 miles.
34 KT.......360NE 330SE 270SW 300NW.
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Re: ATL: TEDDY - Hurricane - Discussion

#816 Postby us89 » Tue Sep 22, 2020 10:07 am

Looks like a textbook Shapiro-Keyser extratropical cyclone after cold-frontal fracture.

Current satellite imagery of Teddy:

Image

And compare that to this EUMeTrain graphic:

Image
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Re: ATL: TEDDY - Hurricane - Discussion

#817 Postby aspen » Tue Sep 22, 2020 10:12 am

gfsperpendicular wrote:
BigB0882 wrote:
aspen wrote:Teddy’s cloud field is so big, I might be able to see the outer bands here in far western Connecticut.

TS-force winds extend out to a maximum of 345 miles according to the NHC, so the wind diameter of Teddy is nearly 700 miles across!


Well, that is not exactly how that works. The TS winds may extend out 345 miles from the center but that doesn't mean it does so in a perfect circle. That 345 miles may only be in the NE quadrant, while winds on the SW quadrant may only extend out 50 miles. Just as an example. Some storms are more uniform than others, though. I haven't paid close attention to Teddy to know if his wind field is consistent in all quadrants.


Here are the TS wind radii. So about 630 miles.
34 KT.......360NE 330SE 270SW 300NW.

Those are in nautical miles. The NHC says the maximum wind radius is 415 miles. Converted to nmi, it’s 360.
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Re: ATL: TEDDY - Hurricane - Discussion

#818 Postby gfsperpendicular » Tue Sep 22, 2020 10:17 am

aspen wrote:
gfsperpendicular wrote:
BigB0882 wrote:
Well, that is not exactly how that works. The TS winds may extend out 345 miles from the center but that doesn't mean it does so in a perfect circle. That 345 miles may only be in the NE quadrant, while winds on the SW quadrant may only extend out 50 miles. Just as an example. Some storms are more uniform than others, though. I haven't paid close attention to Teddy to know if his wind field is consistent in all quadrants.


Here are the TS wind radii. So about 630 miles.
34 KT.......360NE 330SE 270SW 300NW.

Those are in nautical miles. The NHC says the maximum wind radius is 415 miles. Converted to nmi, it’s 360.


Yeah, I know. Should've been more clear I guess. Also lol we posted pretty much the same thing at the same time
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Re: ATL: TEDDY - Hurricane - Discussion

#819 Postby OuterBanker » Tue Sep 22, 2020 11:11 am

Wow coc east of New York. Feeder band in Cuba.
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Re: ATL: TEDDY - Hurricane - Discussion

#820 Postby plasticup » Tue Sep 22, 2020 12:40 pm

Spanning 30 degrees of latitude

Image
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