Hurricane Ida

[crimsone]

10 minutes ago, Wiltshire_snow_lover said:

going to make it to cat 5...

Possible, but an extra 12 MpH in sustained winds in the time she has left is a big ask, especially as she approaches shallower waters. I stand ready to eat my hat on that, mind you. Stranger things have happened.

In any case, unless there's a clear case for it (ie, it's obvious), I'm not sure it'd be worth calling it for cat 5 now, and perhaps they'd leave it for the post season review to decide anything marginal. All it'd do is scare the poor sods either stupid enough or unfortunate enough to no longer be able to get out of there.

As is always the case, some people are about to experience hell, whether they let themselves in for it or simply didn't have a choice.

[Wiltshire_snow_lover]

So how high is new orleans new levys? 

[Ryukai]

On 29/08/2021 at 11:42, Wiltshire_snow_lover said:

So how high is new orleans new levys? 

According to a quick search, between 18 and 30 foot, but also there's a news article (2019) in the scientific american about how the new ones have been sinking due to ground subsidence.  Which would make them vulnerable within 4 years time...  For some reason I doubt they would have had a cat4 verging on a cat5 in mind when writing it up...

After a $14-Billion Upgrade, New Orleans' Levees Are Sinking

WWW.SCIENTIFICAMERICAN.COM

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Sea-level rise and ground subsidence will render the flood barriers inadequate in just four years

 

[summer blizzard]

Now at 935mb, she is a monster. 150KT at 928mb so a little above the surface.

[AderynCoch]

935mb now according to reconnaissance. That's a huge drop since the last update.

 

Edited August 29, 2021 by AderynCoch

[cowdog]

2 recon planes deploying Dropsonde's now so will get constant measurements at least for the next few hours.

[cowdog]

new update - officially bordering on Cat 5 with 150mph winds

Hurricane Ida Update Statement

WWW.NHC.NOAA.GOV

 

Edited August 29, 2021 by cowdog

[crimsone]

Really hoping that sonde measuring 936 mb was in error. Holy crap that's a big drop.

 

[Wiltshire_snow_lover]

 

[emmett garland]

This is astonishing as only on wednesday this aws a tropical disturbance south of Cuba

[AderynCoch]

With regard to landfall Ida is going to hit the same area as Betsy in 1965, which caused significant levee breaches and flooding in New Orleans (Katrina was much worse though). Ida is already stronger than Betsy.

New Orleans was on the weaker side of Katrina but the unprecedented storm surge to the east was enough to overwhelm Lake Pontchartrain and cause a catastrophe. The city will be on the stronger side of Ida and should experience stronger winds but hopefully the newer levee system will do its job.

Then there's the coast itself (Grand Isle and around) which could become permanently altered.

Edited August 29, 2021 by AderynCoch

[crimsone]

They actually extrapolated 932.6mb in HDOB half an hour ago. 

I can't even.

[The PIT]

If Ida doesn't get you tornado's may do a warning just been issued.

[karyo]

Just crazy development!

[Howie]

https://twitter.com/WxAtlantic/status/1431940570625282052?s=19 just not good

[The PIT]

Cat 5 a definite possibility now.

[matty40s]

 

Edited August 29, 2021 by matty40s

[crimsone]

OK. My stomach is actually twisting right now. I might be sick. I was bad before, but holy crap.

 

[Ryukai]

Whelp, Ida's a record breaker now.

 

[matty40s]

511LA| LA Traffic | Trip Planner | Road Conditions

511LA.ORG

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Provides up to the minute traffic and transit information for Louisiana. View the real time traffic map with travel times, traffic accident details, traffic cameras and other road conditions...

How long some of these keep broadcasting is anyone's guess. Daylight dawn's on Louisianas worst day.

[matty40s]

 

[Robbie Garrett]

 

[matty40s]

You have to question the sanity of someone who is staying in Grand Isle through this.

John Humphress2 svrweather.com is chasing an impressive storm live on SevereStudios. Watch Live:

WWW.SEVERESTUDIOS.COM

 

[icykev]

On 29/08/2021 at 12:59, matty40s said:

You have to question the sanity of someone who is staying in Grand Isle through this.

John Humphress2 svrweather.com is chasing an impressive storm live on SevereStudios. Watch Live:

WWW.SEVERESTUDIOS.COM

 

Can't see that lot being there in a few hours

Got to be off your head trying to stay there with whats coming

[crimsone]

Mission 14 into Ida - the flight out of Texas - just extrapolated 928.1 mb in HDOBs