ATL: GERT - Post-Tropical - Discussion

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Re: ATL: INVEST 99L - Models

#301 Postby AtlanticWind » Fri Aug 04, 2017 12:01 am

Torgo wrote:After 240 hours, GFS goes to low resolution. That is why the pressure shot up.

You're right ,Forgot that
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Re: ATL: INVEST 99L - Models

#302 Postby BobHarlem » Fri Aug 04, 2017 12:02 am

600dm ridge is insane, if that holds no way this doesn't hit the US somewhere.
Last edited by BobHarlem on Fri Aug 04, 2017 12:03 am, edited 1 time in total.
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Re: ATL: INVEST 99L - Models

#303 Postby AutoPenalti » Fri Aug 04, 2017 12:02 am

Starting to see that leftward trend...
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Re: ATL: INVEST 99L - Models

#304 Postby Steve » Fri Aug 04, 2017 12:03 am

Torgo wrote:After 240 hours, GFS goes to low resolution. That is why the pressure shot up.


Yeah that's right. I forgot that was the point where it expanded. GFS paints a bad scenario 10 days out. You don't see that every day from a global.
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Re: ATL: INVEST 99L - Discussion

#305 Postby AtlanticWind » Fri Aug 04, 2017 12:04 am

http://www.ssd.noaa.gov/goes/east/tatl/h5-loop-rb.html

Some signs of organizing this morning.
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Re: ATL: INVEST 99L - Discussion

#306 Postby LarryWx » Fri Aug 04, 2017 12:22 am

floridasun78 wrote:so killer sal waiting for 99l look like sal still alive!!!!!!!!!!!!!!!!


We could always hope, FL, we can always hope. :) Actually, though. SAL can be a mixed blessing for us/FL because it can keep TCs weak and thus allow them a higher chance to get to near the SE CONUS.
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Re: ATL: INVEST 99L - Models

#307 Postby SFLcane » Fri Aug 04, 2017 12:42 am

Image
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Re: ATL: INVEST 99L - Models

#308 Postby chaser1 » Fri Aug 04, 2017 1:05 am

:double: Bad, bad, bad moon rising.
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Re: ATL: INVEST 99L - Models

#309 Postby Siker » Fri Aug 04, 2017 1:17 am

Euro weaker than last run. It fails to merge the competing vorts in as clean a fashion as the GFS; it seems like some issues arise from the fact that the eastern one remains dominant without fully absorbing its competitor to the south.

It's also got the nice dry air, of coure.
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Re: ATL: INVEST 99L - Models

#310 Postby USTropics » Fri Aug 04, 2017 1:18 am

00z ECMWF at 96 hours continues to show a much weaker system compared to the 00z GFS:

Image

Image
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Re: ATL: INVEST 99L - Models

#311 Postby SFLcane » Fri Aug 04, 2017 1:21 am

GFS will probably cave in the morning lol :roll:
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Re: ATL: INVEST 99L - Models

#312 Postby wxmann_91 » Fri Aug 04, 2017 1:23 am

The GFS will might continue to show this for 1-2 more days before caving. To be honest, it might be better (from a forecasting perspective) to ignore its solution until it does.
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Re: ATL: INVEST 99L - Models

#313 Postby bamajammer4eva » Fri Aug 04, 2017 1:31 am

This is the new kinder gentler GFS which has been much more conservative so far. Meanwhile the Euro has missed developing systems. Maybe something will happen in between the 2 and a weak TD fizzles over Hispaniola.
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Re: ATL: INVEST 99L - Models

#314 Postby AtlanticWind » Fri Aug 04, 2017 1:54 am

One thing I am still noticing is that the GFS is developing the low out in front near 27/28 West. The Euro seems to be
focus on the 22west area initially. Could explain the big difference in results possibly.

Looking at the satellite pics the GFS may possibly be on to something.
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Re: ATL: INVEST 99L - Models

#315 Postby beoumont » Fri Aug 04, 2017 2:20 am

chaser1 wrote::double: Bad, bad, bad moon rising.


Literally.



Link: https://youtu.be/Ii8KYjERURg
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Re: ATL: INVEST 99L - Models

#316 Postby Hammy » Fri Aug 04, 2017 2:28 am

wxmann_91 wrote:The GFS will might continue to show this for 1-2 more days before caving. To be honest, it might be better (from a forecasting perspective) to ignore its solution until it does.


I've essentially been ignoring the GFS runs for anything other than entertainment--it'll probably handle it better if and when a depression finally forms.
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Re: ATL: INVEST 99L - Discussion

#317 Postby ouragans » Fri Aug 04, 2017 2:34 am

Tropical Weather Outlook
NWS National Hurricane Center Miami FL
200 AM EDT Fri Aug 4 2017

For the North Atlantic...Caribbean Sea and the Gulf of Mexico:

1. A large and complex area of disturbed weather, associated with a
broad low pressure system, extends from about 400 miles south of
the Cabo Verde Islands to about 600 miles southwest of the Cabo
Verde Islands. Environmental conditions are forecast to be
conducive for gradual consolidation and development, and a tropical
depression is likely to form by early next week over the eastern or
central tropical Atlantic Ocean. This system is forecast to move
toward the west or west-northwest at 10 to 15 mph for the
next several days.
* Formation chance through 48 hours...medium...40 percent.
* Formation chance through 5 days...high...80 percent.
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Re: ATL: INVEST 99L - Models

#318 Postby northjaxpro » Fri Aug 04, 2017 2:40 am

SFLcane wrote:Image


WOW. Needless to say, Heaven forbid seeing something like this monster being shown right near your back yard?

This is down right frightening to say the least!! Completely hope this does not come anything close to verifying like this run is showing.
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NEVER, EVER SAY NEVER in the tropics and weather in general, and most importantly, with life itself!!

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Re: ATL: INVEST 99L - Models

#319 Postby Alyono » Fri Aug 04, 2017 3:04 am

northjaxpro wrote:
SFLcane wrote:Image


WOW. Needless to say, Heaven forbid seeing something like this monster being shown right near your back yard?

This is down right frightening to say the least!! Completely hope this does not come anything close to verifying like this run is showing.


we saw that in real life less than a year ago
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Re: ATL: INVEST 99L - Models

#320 Postby northjaxpro » Fri Aug 04, 2017 4:23 am

:uarrow: Yeah of course, which was just way too close for anyone's sanity here in Northeast Florida concerning Matthew. That is why Heaven forbid this from coming anywhere near coming to manifest please!! It was extremely nerve wrecking living through that scare here last October for 100% sure I can attest to that!!
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