ATL: IDA - Remnants - Discussion

[tolakram]

Looks like the eyewall has reached the coast.

saved image

[StormPyrate]

What are the new levees made of. If dirt, and they overtop without a working spillway to divert the erosive effects of the water, then they will most likely experience damage. I don't want to say fail, but it's not a good thing to have happen. Hopefully they aren't dirt.

Some are still earthen, but the storm gates and walls were expanded.
This will be a good test.
I am praying for a complete success

[JPmia]

Won’t load. Tried for the the past 45 minutes.

I watching it now !!!

I see hurricane force pixels

Yeah that webcam is giving quite a show right now.

[birddogsc]

That Grand Isle camera is intense. Surge plus waves and wind pounding those houses. I pray for a miracle for those that stayed.

[KBBOCA]

 https://twitter.com/ClarkEvansWx/status/1432005775061393421

[HurryKane]

Ive marked the area effected by this Levee failure for anyone who wants to know where it is



https://imgur.com/a/7fzTwvW

https://imgur.com/a/7fzTwvW

https://imgur.com/a/7fzTwvW

Levee overtopping is NOT a levee failure. Levee failure is when the structure itself fails. Overtopping simply means the surge got higher than the levee itself.

Its not really relevant...if the water is overtopping it doesnt stop until it reach equilibrium on the otherside

This is a very rural area anyway and most people evacuated

It’s an important distinction for lots of reasons.

[jlauderdal]

Grand Isle under water with people trapped on roof. Businesses already destroyed by surge. US1 from Port Lourchon to Grand Isle under water.

https://twitter.com/R_I_C_H_E_S/status/ ... 9908803589

That was very predictable for Grand Isle, hopefully, those people survive but its not a sure bet, its all about the surge, always has been in hurricanes.

[KBBOCA]

Lakeshore Drive, New Orleans

 https://twitter.com/GregNordstrom/status/1432005084565708813

[SEASON_CANCELED]

What are the new levees made of. If dirt, and they overtop without a working spillway to divert the erosive effects of the water, then they will most likely experience damage. I don't want to say fail, but it's not a good thing to have happen. Hopefully they aren't dirt.

Some are still earthen, but the storm gates and walls were expanded.
This will be a good test.
I am praying for a complete success

Here is some imagines of the upgrades.

They sunk steel ballasts into the levee's facing lake Ponchatrain...they did about 25 miles of this and fixed the Industrial canal that broke.

To my knowledge that was the only upgrade so far. The pumps are planned to be upgraded in the next few years

you can see these upgrades on google streetview / google maps

https://imgur.com/a/dYqEJeP

[Zonacane]

https://twitter.com/ClarkEvansWx/status/1432005775061393421?s=20

The NHC is the best cyclone forecasting agency in the world, we should all be eternally grateful.

[EquusStorm]

Grand Isle about to go in that moat of sorts, going to be a close call with the eastern inner eyewall

[AlabamaDave]

Going to be a very close call if Grand Isle will avoid the inner eyewall. Either way it is going to be really bad for them.

Looks like the western end, at least, will get it.

[hohnywx]

If anyone here has the Snapchat app, the map section zoomed into the landfall area provides lots of raw videos from various locations, updated in real time.

Just checked - wow. People posting videos way south of New Orleans. Crazy.

[SconnieCane]

Mix of air-and-water-borne debris flying past that Grand Isle cam on TWC.

[SEASON_CANCELED]

Reposting again for those having problems with Severe Storm site

Here is a mirror of 2 storm chasers

https://www.youtube.com/watch?v=vcbk3NcScRM

[hohnywx]

Grand Isle Police Chief on with TWC now...said this is the worst storm he has ever seen. 15 residents who made their way over to the PD are hunkered down with them in their building.

[kevin]

Recon is flying around in the eye to get the lowest reading, just got 930.1 mbar (extrapolated).

[jhpigott]

Whoa. 146mph

https://mobile.twitter.com/macedo_weath ... 1619760130

[KBBOCA]

Weather Channel talking live with some official in a reinforced police building in Grand Isle. Says 11 folks took shelter there.

[MBryant]

Just a meager request. Can we stop the post game comments until after the game is over? I really don't care if New Orleans is spared or not. People are going to be affected and people outside of Sin City are important too.