ATL: DANNY - Remnants - Discussion

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Nederlander
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Re: Re:

#1221 Postby Nederlander » Fri Aug 21, 2015 4:21 pm

ozonepete wrote:
Siker wrote:
Thanks for the explanation, curious if a larger eye will cause Danny to expand in size some more.


I've never seen a correlation. I have occasionally seen storms that were increasing in size do ERCs but I have also seen a lot of storms doing ERCs that did not change size at all. If any of the METS here can add to that speak up guys.


From my understanding of ERC's there isn't really a correlation correct? In other words a TC may be expanding due to environmental factors during an ERC, but not BECAUSE of the ERC. Correct me if that's wrong.
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Re: ATL: DANNY - Hurricane- Discussion

#1222 Postby Sanibel » Fri Aug 21, 2015 4:26 pm

Off-Topic: A major hurricane is being predicted to hit the Hawaiian island of Kauai.
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Re: ATL: DANNY - Hurricane- Discussion

#1223 Postby NCSTORMMAN » Fri Aug 21, 2015 4:27 pm

Sanibel wrote:Off-Topic: A major hurricane is being predicted to hit the Hawaiian island of Kauai.


where is Hawaiian lol
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Re: ATL: DANNY - Hurricane- Discussion

#1224 Postby Brent » Fri Aug 21, 2015 4:35 pm

Sanibel wrote:Off-Topic: A major hurricane is being predicted to hit the Hawaiian island of Kauai.


viewtopic.php?f=59&t=117441
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Re: ATL: DANNY - Hurricane- Discussion

#1225 Postby bevgo » Fri Aug 21, 2015 4:37 pm

any chance Danny could make it to the gulf as an intact storm or remnats that could regenerate and be a threat?
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Re: ATL: DANNY - Hurricane- Discussion

#1226 Postby blp » Fri Aug 21, 2015 4:37 pm

I still do not see any signs shear is significantly affecting the system yet. I still see the outermost bands with a feathery appeareance. When the shear comes you will see those clouds get squashed in and blown off and it will slowly march toward the center. Right now it is in the sweat spot still for a nice outflow channel.
Last edited by blp on Fri Aug 21, 2015 4:39 pm, edited 2 times in total.
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#1227 Postby Dean4Storms » Fri Aug 21, 2015 4:38 pm

Danny looks to be moving North of it's 5pm forecast track. I think some of the models are missing to this point the deeper TC and the fact with a weakening Ridge to its North it is gaining more latitude than they have been predicting.
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Re: ATL: DANNY - Hurricane- Discussion

#1228 Postby Dean4Storms » Fri Aug 21, 2015 4:39 pm

bevgo wrote:any chance Danny could make it to the gulf as an intact storm or remnats that could regenerate and be a threat?



Last I looked the models had some pretty high SW Shear in the Gulf late next week, anything headed in there is in big trouble if that solution holds.
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Re: ATL: DANNY - Hurricane- Discussion

#1229 Postby Dean4Storms » Fri Aug 21, 2015 4:41 pm

http://www.ssd.noaa.gov/PS/TROP/floaters/04L/flash-vis-long.html

Turn on the forecast track and tell me if you see it moving north of the forecast track.

Also note the flattening look to the core clouds on the western side! Shear!
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Re: ATL: DANNY - Hurricane- Discussion

#1230 Postby HurriGuy » Fri Aug 21, 2015 4:44 pm

Look at that hot tower that fired up in the last visible frame. Thats a tall one.
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Re: ATL: DANNY - Hurricane- Discussion

#1231 Postby SouthFLTropics » Fri Aug 21, 2015 4:51 pm

HurriGuy wrote:Look at that hot tower that fired up in the last visible frame. Thats a tall one.


That's one heck of a hot tower and it shows up real good on IR as well.

SFT
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Re: ATL: DANNY - Hurricane- Discussion

#1232 Postby blp » Fri Aug 21, 2015 4:52 pm

I think the tricky part is that the system is moving at only 10mph and not fast enough to catch the shear line which is also retreating west. Once the ridge establishes itself and storm moves due west with increased forward speed will you see it get hammered. NHC says that should happen tomorrow or tomorrow night. So probably another 12 to 24hrs before it gets impacted.
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NCSTORMMAN

#1233 Postby NCSTORMMAN » Fri Aug 21, 2015 4:55 pm

This is about to take off again. Thought it was shear affecting it but it looks like Ozonepete may be right.
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Re: ATL: DANNY - Hurricane- Discussion

#1234 Postby bevgo » Fri Aug 21, 2015 4:55 pm

Dang! I keep trying to get into chat and cannot! I can see it but for some reason I am not able to post anything in chat. I am not sure why. Cannot do it on main computer or my Kindle.
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Re: ATL: DANNY - Hurricane- Discussion

#1235 Postby SouthFLTropics » Fri Aug 21, 2015 4:57 pm

Looking at the last few frames of the satellite it appears to be moving more north of west. As someone mentioned already, I believe it's going to miss the next forecast point.

SFT
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Re: ATL: DANNY - Hurricane- Discussion

#1236 Postby Steve » Fri Aug 21, 2015 4:59 pm

bevgo wrote:any chance Danny could make it to the gulf as an intact storm or remnats that could regenerate and be a threat?


It's possible. If you look at the EC ensembles at 850mb the energy sort of splits with some remnant energy looking like it ends up stretched out near the upper tx coast feeding into an onshore flow. GFS at 500 drives a deep and narrow trough in the south. It keeps it there for a while, possibly too long. Then it flattens the pattern and goes to an even deeper trough whose isobars almost connect with the Pacific. Not sure if it's not resolving an upper level low, if it's accurate or if its overdoing a trough in the east too early (particularly since its an El Niño year) or if it senses possible surface low pressure. I was hoping the WPAC would give some hints but there are mixed signals with a recurve (trough in the east a week later) followed by a recurve with a bend back toward Asia which argues somewhat for a building ridge a few days later. But with the CPAC Storm liable to get entrained into the westerlies and get its moisture into the North American pattern sooner, that resulting trough could be Great Lakes centered initially. That says moisture ahead of it and probably more into the se of there if there isn't massive swly flow in front of Danny's remnants to just turn them up and out.

In other words, you are going to have to watch the regional and global patterns evolve over the next few days before knowing if anyone in the U.S. is going to get rain out of the remnants. It should be clear when Danny or its remnant wave are at the big islands around Monday. <--- not much help, but there are a lot of things going on around the globe that could complicate the 7-10 day pattern, and too many for any high percentage guesses this early.
Last edited by Steve on Fri Aug 21, 2015 5:10 pm, edited 2 times in total.
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Re: ATL: DANNY - Hurricane- Discussion

#1237 Postby NCSTORMMAN » Fri Aug 21, 2015 5:00 pm

SouthFLTropics wrote:Looking at the last few frames of the satellite it appears to be moving more north of west. As someone mentioned already, I believe it's going to miss the next forecast point.

SFT



It is no missing the forecast point. Going NW instead of WNW. You can follow the eye and the convection around it and see that. Overlaying the forecast path on top of it shows it is already north of where it should be.
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Re: ATL: DANNY - Hurricane- Discussion

#1238 Postby SouthFLTropics » Fri Aug 21, 2015 5:01 pm

NCSTORMMAN wrote:
SouthFLTropics wrote:Looking at the last few frames of the satellite it appears to be moving more north of west. As someone mentioned already, I believe it's going to miss the next forecast point.

SFT



It is no missing the forecast point. Going NW instead of WNW. You can follow the eye and the convection around it and see that. Overlaying the forecast path on top of it shows it is already north of where it should be.


I agree 110%...Tonight's 00Z GFS and Euro runs might be interesting.
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#1239 Postby ScottNAtlanta » Fri Aug 21, 2015 5:08 pm

Was just looking at CIMSS site and earlier it looks like Danny was just about at his Max potential intensity (MSLP) for the area he was crossing...I wouldn't think that happens very often at all
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#1240 Postby AutoPenalti » Fri Aug 21, 2015 5:10 pm

Convection firing again.
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