ATL: ARTHUR - Models

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Syx6sic
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Re: ATL: ARTHUR - Models

#201 Postby Syx6sic » Wed Jul 02, 2014 8:18 pm

ronjon wrote:Norfolk Virginia might experience hurricane force wind gusts if 18z HWRF verifies.


Finally maybe some action my way lol
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Re: ATL: ARTHUR - Models

#202 Postby meriland23 » Wed Jul 02, 2014 8:31 pm

ronjon wrote:Norfolk Virginia might experience hurricane force wind gusts if 18z HWRF verifies.


It really depends on how reliable HWRF is in terms of track. That being said, HWRF has consistently been on this same track (more west than most other models) and now the higher ups are starting to bend westward in the track (GFS,EURO).
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#203 Postby gatorcane » Wed Jul 02, 2014 8:35 pm

The HWRF hasn't been too great with this system in my opinion. Best bet - as with any system - is a blend of the GFS and ECMWF solutions.
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#204 Postby NDG » Wed Jul 02, 2014 9:14 pm

Has anybody mentioned that 0z early model runs trended westward again? NHC forecast track now is on the right of the guidance.
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Re: ATL: ARTHUR - Models

#205 Postby Duddy » Wed Jul 02, 2014 9:30 pm

http://t.co/wAGftA4kVU

What is HRRR? It's 0z run shows a track much more west of NHC track.
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Re: ATL: ARTHUR - Models

#206 Postby TheStormExpert » Wed Jul 02, 2014 9:42 pm

Duddy wrote:http://t.co/wAGftA4kVU

What is HRRR? It's 0z run shows a track much more west of NHC track.

I don't see how this is possible when Arthur now looks more ragged and slightly pathetic compared to several hours ago. If this was to happen it would have to get its act together FAST!!
Image
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#207 Postby brunota2003 » Wed Jul 02, 2014 11:18 pm

Wow...if the HWRF verified, the hurricane would literally go right over my old house.

For those that don't know, the HRRR is the High Resolution Rapid Refresh model. It runs every hour...I believe it was supposed to be the replacement for the RUC, if I remember right?
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Re: ATL: ARTHUR - Models

#208 Postby tolakram » Wed Jul 02, 2014 11:33 pm

The HWRF hasn't verified since, when, 2005?
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Re: ATL: ARTHUR - Models

#209 Postby Duddy » Wed Jul 02, 2014 11:38 pm

tolakram wrote:The HWRF hasn't verified since, when, 2005?


In regards to track, intensity or both? :crazyeyes:
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Re: ATL: ARTHUR - Models

#210 Postby tolakram » Wed Jul 02, 2014 11:40 pm

Duddy wrote:
tolakram wrote:The HWRF hasn't verified since, when, 2005?


In regards to track, intensity or both? :crazyeyes:


Both. It's had a horrendous track record with both intensity and track.
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Re: ATL: ARTHUR - Models

#211 Postby galaxy401 » Thu Jul 03, 2014 12:20 am

tolakram wrote:
Duddy wrote:
tolakram wrote:The HWRF hasn't verified since, when, 2005?


In regards to track, intensity or both? :crazyeyes:


Both. It's had a horrendous track record with both intensity and track.


Yeah I've noticed the HWRF always over exaggerates storms the past few seasons. Have they ever predicted a storm correctly?
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Re: ATL: ARTHUR - Models

#212 Postby ncweatherwizard » Thu Jul 03, 2014 1:05 am

Duddy wrote:http://t.co/wAGftA4kVU

What is HRRR? It's 0z run shows a track much more west of NHC track.


LOL at the HRRR reflectivity field. Not saying it couldn't happen, but it's pretty unlikely.

HRRR initializes a 3D reflectivity field that is itself derived from radar data that goes through assimilation into the 13km Rapid Refresh. So a lot of things happen to the actual radar data before the model even gets started. The 0-hour representation of the storm is much more impressive than its actual presentation tonight.

HRRR is WRF at 3km resolution run on a large domain for just 12 hours. My experience is that WRF, when initialized with a deep pressure minimum, wraps convection around that minimum pretty quickly. Having a dense network of observations to assimilate at initialization would probably help yield a more realistic TC structure, IMO.
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Re: ATL: ARTHUR - Models

#213 Postby tolakram » Thu Jul 03, 2014 1:05 am

0Z Euro running.

30 hours - 976mb very close to Hatteras. Looks like it might be just miles east of Buxton at the closest point.
36 hours - 971mb
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Re: ATL: ARTHUR - Models

#214 Postby supercane4867 » Thu Jul 03, 2014 1:12 am

00z GFDL deepens Arthur into a 125mph full blown major hurricane east of Cape Hatteras

Likely overdone as it always does...
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#215 Postby Alyono » Thu Jul 03, 2014 1:14 am

EC 967 mb at closest approach. Just checked full model output
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Re: ATL: ARTHUR - Models

#216 Postby meriland23 » Thu Jul 03, 2014 1:16 am

supercane4867 wrote:00z GFDL deepens Arthur into a 125mph full blown major hurricane east of Cape Hatteras

Likely overdone as it always does...


That would be crazy! Let's hope HWRF is overdoing its prediction there. CAT 3+ is no bueno
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Re: ATL: ARTHUR - Models

#217 Postby Jevo » Thu Jul 03, 2014 8:10 am

It's time to call it the day when the GFDL agrees with the big boys...

06z GFDL +24

Image
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#218 Postby stormcruisin » Thu Jul 03, 2014 8:48 am

Image


Image

GFS is a shore hugger.
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Re: ATL: ARTHUR - Models

#219 Postby BigA » Thu Jul 03, 2014 10:51 am

As stormcruisin pointed out above, the 12Z GFS takes Arthur a lot closer to the coast. Close enough to really ruin the celebrations on the 4th with rain and gusty winds. It also looks to take Arthur a bit closer to southeastern New England. Especially as Arthur will be a transitioning system at the time, with much of it's heavy precipitation on its western side, southeastern New England could be in for a great deal of heavy reain.
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#220 Postby Jevo » Thu Jul 03, 2014 10:52 am

12z GFS +12

Image

12z GFS +18

Image
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