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re: Hurricane Nate - Moving Inland - Hurricane Season Over?

Posted on 10/5/17 at 7:33 am to
Posted by Duke
Dillon, CO
Member since Jan 2008
36439 posts
Posted on 10/5/17 at 7:33 am to
HWRF has a 970 mb into NOLA, but that model is typically on the strong side.

HMON should be rolling out soon.
Posted by 9Fiddy
19th Hole
Member since Jan 2007
66475 posts
Posted on 10/5/17 at 7:37 am to
Welp looks like I’m gonna be the OTs Jom Cantore. Reporting Sunday live from Gulf Shores in a beach condo. I just hope they have a blue shed I can put ratchet straps on.
Posted by 50_Tiger
Arlington TX
Member since Jan 2016
42982 posts
Posted on 10/5/17 at 7:38 am to
quote:

HMON should be rolling out soon


Gonna be like 930mb jk.

This one has me a little nervous.

Could be Harvey repeat all over again on one end of the spectrum in terms of preparation time.

Or it can be a little shite system that annoys weekend plans.

I am hoping for the latter.
Posted by tke857
Member since Jan 2012
12195 posts
Posted on 10/5/17 at 7:40 am to
HMON gonna be like 899 lmao....

HMON also had Harvey going swinging back into Mexico....so yeah
Posted by 50_Tiger
Arlington TX
Member since Jan 2016
42982 posts
Posted on 10/5/17 at 7:43 am to
Man what was the lowest HMON had Harvey and Irma? I swear one run had it like 864mb or some crazy low mb rating.

And to be fair, the only reason I am nervous for this is because New Orleans will flood and we already have little prep time for the metro area.
Posted by Motorboat
At the camp
Member since Oct 2007
23931 posts
Posted on 10/5/17 at 7:44 am to
quote:

guess I'm going to the camp after work to start prepping



shite, we are going to the camp for a tournament that was postponed from Cindy. Should be interesting.
Posted by deltaland
Member since Mar 2011
100548 posts
Posted on 10/5/17 at 7:46 am to
quote:

Medic isn’t there a bunch of dry air in the gulf?



Currently yes but the north half of this tropical wave near south Florida is tracking west ahead of Nate and is going to kick the dry air west to Mexico and drag moisture behind it.

Conditions for Nate will be favorable to strengthen until it nears the northern gulf and interacts with some shear
Posted by tke857
Member since Jan 2012
12195 posts
Posted on 10/5/17 at 7:46 am to
quote:

And to be fair, the only reason I am nervous for this is because New Orleans will flood and we already have little prep time for the metro area.



To be fair from a municipal standpoint there is no reason for that city not to be prepared for a large rain event. Now from a private citizen standpoint I get it.
Posted by deltaland
Member since Mar 2011
100548 posts
Posted on 10/5/17 at 7:47 am to
quote:

decide to sleep and the Euro pulls that shite!


Yea the GFS regained some credibility it seems
Posted by Duke
Dillon, CO
Member since Jan 2008
36439 posts
Posted on 10/5/17 at 7:48 am to
HMON had a 854 mb or something close with Irma. Which smashes the 870 mb world record.

Might be a good idea for you NOLa baws to make a supply run now. That cone shifts west again next advisory and has a hurricane right into NOLA the run will be on.
This post was edited on 10/5/17 at 7:50 am
Posted by CypressTrout10
Louisiana
Member since Jun 2016
3122 posts
Posted on 10/5/17 at 7:49 am to
Am I the only one that sees GFS has nothing forming?

And EURO has a tropical storm at best forming

But NHC says hurricane? Based on what??
Posted by rds dc
Member since Jun 2008
21041 posts
Posted on 10/5/17 at 7:49 am to
quote:

So, unlike Irma, the upper levels are setup for this system to possibly come in as far west as Louisiana. Irma pretty much always had the western advance shutoff by upper flow out of the SW across the Gulf. This go around we could see a big upper high sitting over the Gulf providing a low shear environment and the potential for a system to get farther west. As always, there is an ULL to watch and the track of this feature could make or break things down the road. If it moves out just right then it provides outflow for a developing system but, if it doesn't, then it shears the system. The 12z Euro and 18z GFS both seem to favor short term movement that favors development.

In 48hrs, the ULL is over the Yucatan and moving west as Nate moves north. This provides outflow for the system but different timing over either feature could result in shear and slower development.



As Nate moves north the ULL is forecast to slide west and allow for a high to develop over the Gulf. This would provide a low shear environment and favorable outflow allowing the system to strengthen. The 18z HWRF seems to be picking up on the potential for this favorable setup.



Then beyond that, things get really tricky with an approaching mid level trough. Faster movement and shear increases just before landfall but slower movement could actually aid intensification just at landfall. The speed of Nate or the trough will play a huge role in determining what we see at landfall.



So things are moving along pretty much as expected. The orientation of the ULL is slightly different and Nate is bit farther west but shear should decrease as Nate moves north towards the Yucatan. The GFS has been pretty consistent with this forecast. The top image above is the 1st image in the sequence below:



There are still some questions as to how fast Nate can organize and how much in interacts with the Yucatan. The 12z SHIPS shows too chances for RI, so there are still a lot of questions to be answered with regard to intensity. The lull in the middle is when the system would be dealing with the Yucatan.





Posted by Duke
Dillon, CO
Member since Jan 2008
36439 posts
Posted on 10/5/17 at 7:51 am to
quote:

But NHC says hurricane? Based on what??



Based on conditions ahead of it and both major models are doing some weird stuff with Nate pre Yucatan that doesn't make a ton of sense.

Plus better to expect a Cat 1 and get a TD than the other way around. And rds showing the SHIPS has some higher end probabilites still on the books.
This post was edited on 10/5/17 at 7:53 am
Posted by tgrbaitn08
Member since Dec 2007
148031 posts
Posted on 10/5/17 at 7:53 am to
quote:


Might be a good idea for you NOLa baws to make a supply run now. T


I ain’t even scared. I’m leaving town this afternoon and won’t be home till Sunday or if the forcast changes for the worse I’ll come home Saturday afternoon
Posted by Motorboat
At the camp
Member since Oct 2007
23931 posts
Posted on 10/5/17 at 7:54 am to
what about the cold front approaching from the west? No one is mentioning this anymore.
Posted by 50_Tiger
Arlington TX
Member since Jan 2016
42982 posts
Posted on 10/5/17 at 7:55 am to
quote:


what about the cold front approaching from the west? No one is mentioning this anymore.




Doesn't come in fast enough it seems. But that's the reason for the NE track after landfall.
Posted by Duke
Dillon, CO
Member since Jan 2008
36439 posts
Posted on 10/5/17 at 7:56 am to
quote:


I ain’t even scared


Ain't about fear, it's about getting in before you have to wait in lines for shite. I'm about to get my grocery shopping on. Not because I'm expecting Gustav, but because it'll be a zoo when the cone shifts west again.
Posted by 50_Tiger
Arlington TX
Member since Jan 2016
42982 posts
Posted on 10/5/17 at 7:56 am to
Pretty much a ~50% chance of RI kinda sucks.

Posted by deltaland
Member since Mar 2011
100548 posts
Posted on 10/5/17 at 7:57 am to
quote:

both major models are doing some weird stuff with Nate pre Yucatan that doesn't make a ton of sense.


This. Most favorable area for strengthening is in the deep warm water between Central America and the yucatan. Should have low shear and I expect it to hit hurricane status before the yucatan.

Then the question is does the yucatan weaken it or does it go just east and continue to develop
Posted by rds dc
Member since Jun 2008
21041 posts
Posted on 10/5/17 at 7:58 am to
quote:

what about the cold front approaching from the west? No one is mentioning this anymore.


It is running about 24hrs behind what the models were showing earlier in the week.
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