ATL: IRMA - Models
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Re: ATL: IRMA - Models
Last edited by Steve on Sun Sep 03, 2017 7:10 pm, edited 1 time in total.
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Re: ATL: IRMA - Models
Really?? Here is the graphic of where it ends

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Re: ATL: IRMA - Models
Happy Pelican wrote:meriland29 wrote:I have a question regarding GFS and there intensity forecasts. Goes GFS tend to 'way' over or under do the intensity forecast of hurricanes (historically)?
I believe the GFS usually over intensifies storms and even more so since it was upgraded.
Hmm, I just bring it up cause the models intensity peaks at like the 870's very close to NC. I don't remember how GFS presumed Harvey would intensify either..
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Re: ATL: IRMA - Models
otowntiger wrote:Alyono wrote:HMON has the 850mb level about 20m above the surface
pressure drops to 858mb
Lol! No way!
I think this is worth saving.


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Re: ATL: IRMA - Models
18z HWRF position at 120 hrs is 0.7 deg latitude south of 12z position at 126 hrs. Long about the same.
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Re: ATL: IRMA - Models
WeatherEmperor wrote:
Really?? Here is the graphic of where it ends
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21.99 not 19.9! My bad. I'll fix it.
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- SouthDadeFish
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Re: ATL: IRMA - Models
I'm curious to see how the 00Z HWRF changes (if at all) since it will have the P3 recon radar data ingested into the initialization.
Last edited by SouthDadeFish on Sun Sep 03, 2017 7:10 pm, edited 1 time in total.
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Re: RE: Re: ATL: IRMA - Models
The cape wind profilers would give us some great data if it came ashore in cocoaSteve wrote:gatorcane wrote:18Z NAVGEM shifts slightly west but still offshore SE Florida as it moves north:
I've got it coming in WNW but gradually bending to NW. This would imply a Florida hit around Cocoa or so if it verified. Tough place to hit from the SE or ESE. Speed it up since it's not all filled in yet.
https://www.tropicaltidbits.com/analysi ... 0&ypos=200
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Re: ATL: IRMA - Models
Also, HWRF-P has now completed it's 18Z run.
You may not want to run it if you live in the Bahamas or South Florida.
https://www.tropicaltidbits.com/analysi ... s=0&ypos=0
It's still showing the momentum issue. There's no easy way to stop a runaway freight train, and the bigger and faster something is, the harder it is for that object to stop. I'm not putting any weight behind the 18Z HWRF-P. It's just a model. But it's a bad scenario one for sure.
You may not want to run it if you live in the Bahamas or South Florida.
https://www.tropicaltidbits.com/analysi ... s=0&ypos=0
It's still showing the momentum issue. There's no easy way to stop a runaway freight train, and the bigger and faster something is, the harder it is for that object to stop. I'm not putting any weight behind the 18Z HWRF-P. It's just a model. But it's a bad scenario one for sure.
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Re: ATL: IRMA - Models
Extratropical94 wrote:otowntiger wrote:Alyono wrote:HMON has the 850mb level about 20m above the surface
pressure drops to 858mb
Lol! No way!
I think this is worth saving.
[i mg]https://i.imgur.com/eaXSzcP.png[/img]
[i mg]https://i.imgur.com/KJBCSjY.png[/img]
And the max wind...205kt!!!

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Re: ATL: IRMA - Models
Extratropical94 wrote:otowntiger wrote:Alyono wrote:HMON has the 850mb level about 20m above the surface
pressure drops to 858mb
Lol! No way!
I think this is worth saving.
they need a new color for 235 mph winds
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The posts in this forum are NOT official forecasts and should not be used as such. For official information, please refer to the NHC and NWS products.
Gulf Coast: Opal '95 Georges '98 / So Fla: Katrina '05 Wilma '05 Irma '17
Re: ATL: IRMA - Models
I should go without saying 860 won't verify. Even west PAC typhoon Tip wasn't that low. I doubt the Atlantic will ever beat pacific record for that. Of course if anything even close to 870 occurred in Atlantic out side of carribean or gulf it would be enough to make me think we have gone off the climate change deep end.
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Re: ATL: IRMA - Models
Could you imagine those winds hitting Miami! That would be the end of South Florida.
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- gatorcane
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Re: ATL: IRMA - Models
Hurricane Donna 1960 and hurricane David 1979 come to mind looking at the latest models.




Last edited by gatorcane on Sun Sep 03, 2017 7:19 pm, edited 1 time in total.
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- nativefloridian
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Re: ATL: IRMA - Models
Steve wrote:Also, HWRF-P has now completed it's 18Z run.
You may not want to run it if you live in the Bahamas or South Florida.
https://www.tropicaltidbits.com/analysi ... s=0&ypos=0
Well I went against your advice because curiosity won....so here's all I can say


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Re: ATL: IRMA - Models
hohnywx wrote:Extratropical94 wrote:otowntiger wrote: Lol! No way!
I think this is worth saving.
[i mg]https://i.imgur.com/eaXSzcP.png[/img]
[i mg]https://i.imgur.com/KJBCSjY.png[/img]
And the max wind...205kt!!!
Yeah i was looking @ that yesterday i suspect it maybe also showing upperlevel wind speed
@10 metres
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Re: ATL: IRMA - Models
Why are some of these models so extreme, and will reality get even close? I feel like the US should be preparing for the worse natural disaster in US history.
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- CourierPR
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Re: ATL: IRMA - Models
gatorcane wrote:Hurricane Donna 1960 and hurricane David 1979 come to mind looking at the latest models.
https://s26.postimg.org/vac83yz61/track.gif
A recent tweet by Met. Bryan Norcross at TWC stated that it is increasingly likely that preps will be needed for Florida.
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Re: ATL: IRMA - Models
HurricaneFrances04 wrote:No comment.
I've seen this many times before. History reminds me that this has a feel of an earlier (i.e. further east) turn. Long time trackers will understand what I mean.
Last edited by sma10 on Sun Sep 03, 2017 7:24 pm, edited 2 times in total.
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