ATL: FRED - Models

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Blown Away
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Re: ATL: 94L - Models

#141 Postby Blown Away » Mon Aug 09, 2021 1:15 pm

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12z EURO 120 Hours... Vorticity much better (Still TD/TS at best) than previous runs as it skims N of Hispaniola...
Last edited by Blown Away on Mon Aug 09, 2021 1:26 pm, edited 2 times in total.
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Re: ATL: 94L - Models

#142 Postby BobHarlem » Mon Aug 09, 2021 1:16 pm

Hypercane_Kyle wrote:12z HWRF keeps the system a tropical cyclone, but very weak. Getting absolutely slammed with shear in the Bahamas.

End of the run it seems to make a fairly quick ramp up as the shear abates just on the western side of the Bahamas approaching S. Fl. This one is going to drive people crazy if it does that.
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Re: ATL: 94L - Models

#143 Postby Blown Away » Mon Aug 09, 2021 1:30 pm

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12z EURO 72-144 Hours... Conditions seem to improve as 94L approaches SFL and begins to turn NW...
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Re: ATL: 94L - Models

#144 Postby SFLcane » Mon Aug 09, 2021 1:30 pm

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Last edited by SFLcane on Mon Aug 09, 2021 1:31 pm, edited 1 time in total.
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Re: ATL: 94L - Models

#145 Postby Hypercane_Kyle » Mon Aug 09, 2021 1:31 pm

BobHarlem wrote:
Hypercane_Kyle wrote:12z HWRF keeps the system a tropical cyclone, but very weak. Getting absolutely slammed with shear in the Bahamas.

End of the run it seems to make a fairly quick ramp up as the shear abates just on the western side of the Bahamas approaching S. Fl. This one is going to drive people crazy if it does that.


Yeah, hits SFL as a 60 knot TS.
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Re: ATL: 94L - Models

#146 Postby AutoPenalti » Mon Aug 09, 2021 1:32 pm

Another game of inches here.
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Model Runs Cheat Sheet:
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ECMWF (1:45 AM/PM)

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Re: ATL: 94L - Models

#147 Postby Blown Away » Mon Aug 09, 2021 1:36 pm



Models sniffing better conditions near SFL...
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Re: ATL: 94L - Models

#148 Postby AutoPenalti » Mon Aug 09, 2021 1:37 pm

Blown Away wrote:


Models sniffing better conditions near SFL...

MJO is crossing right now so models will likely start responding to that.
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Model Runs Cheat Sheet:
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Re: ATL: 94L - Models

#149 Postby Blown Away » Mon Aug 09, 2021 1:37 pm

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12z EURO... Misses Hispaniola and vorticity gets better as 94L approaches and passes through SFL...
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Re: ATL: 94L - Models

#150 Postby Ubuntwo » Mon Aug 09, 2021 1:41 pm

euro bottoms out at 1002 mb before landfall on the Big Bend. lots of flip flopping yet to come...
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Re: ATL: 94L - Models

#151 Postby Blown Away » Mon Aug 09, 2021 1:43 pm

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12z HWRF
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Re: ATL: 94L - Models

#152 Postby AtlanticWind » Mon Aug 09, 2021 1:55 pm

Just dont completely trust the models on intensity 5 days out.
Hwrf shows this starting to intensify right before coming ashore in S Fla
Euro shows the same thing.
If the shear forecasts are a little off , Future (possible) Fred will have very warm waters
to fuel it.
Still somewhat concerned if this avoids much land interaction and stays over water North
of the Greater Antilles.
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Re: ATL: 94L - Models

#153 Postby BobHarlem » Mon Aug 09, 2021 2:00 pm

AtlanticWind wrote:Just dont completely trust the models on intensity 5 days out.
Hwrf shows this starting to intensify right before coming ashore in S Fla
Euro shows the same thing.
If the shear forecasts are a little off , Future (possible) Fred will have very warm waters
to fuel it.
Still somewhat concerned if this avoids much land interaction and stays over water North
of the Greater Antilles.

CMC, Euro and HRWF all show the last minute ramp up and S. Fl landfall. The GFS does not, but all agree it'll be fairly weak through most of the Bahamas except toward the end. It's going to be a close call if land interaction with the islands is minimal.
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Re: ATL: 94L - Models

#154 Postby AtlanticWind » Mon Aug 09, 2021 2:03 pm

Blown Away wrote:https://i.imgur.com/tgacvFy.gif

12z HWRF

Drops 13 MB in a very short time .That must mean much better conditions right before landfall in S Fla.
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Re: ATL: 94L - Models

#155 Postby SFLcane » Mon Aug 09, 2021 2:05 pm

AtlanticWind wrote:
Blown Away wrote:https://i.imgur.com/tgacvFy.gif

12z HWRF

Drops 13 MB in a very short time .That must mean much better conditions right before landfall in S Fla.



It will be interesting to see the hwrf tonight to see if that trend continues. Tomorrow is key with aircraft data.
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Re: ATL: 94L - Models

#156 Postby Blown Away » Mon Aug 09, 2021 2:22 pm

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18z Guidance... N shift with models moving towards N Coast of Hispaniola... Modest strengthening possible after @75W...
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Re: ATL: 94L - Models

#157 Postby Category5Kaiju » Mon Aug 09, 2021 2:28 pm

Imho, with 94L, the worst case scenario would be a robust tropical storm striking South Florida. Not sure about the other extremes, nothing or a minimal hurricane, but we’ll have to see how the dry air and shear behave.
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Re: ATL: 94L - Models

#158 Postby ColdMiser123 » Mon Aug 09, 2021 2:33 pm

There is a lot of spread with the EPS in intensity, the additional uncertainty includes any kind of potential island land interaction going forward, as well as what side of Florida 94L could end up on down the road.
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Re: ATL: 94L - Models

#159 Postby AutoPenalti » Mon Aug 09, 2021 3:10 pm

The intensity jump seems just a tad bit unrealistic only because it requires it to be vertically stacked before approaching the Gulf stream.
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Model Runs Cheat Sheet:
GFS (5:30 AM/PM, 11:30 AM/PM)
HWRF, GFDL, UKMET, NAVGEM (6:30-8:00 AM/PM, 12:30-2:00 AM/PM)
ECMWF (1:45 AM/PM)

TCVN
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Re: ATL: 94L - Models

#160 Postby NDG » Mon Aug 09, 2021 3:10 pm

Just a reminder that systems that have a rubust MLC tend to fare better when tracking over Hispaniola, they redevelop a LLC quicker than systems that don't.
Last edited by NDG on Mon Aug 09, 2021 3:32 pm, edited 1 time in total.
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