Major Hurricane Ida

[NavarreDon]

https://www.fox10tv.com/news/2-dead-after-road-collapse-in-george-county-miss/article_4ea38026-0a42-11ec-8928-eb8dfc3a59f5.html

Hearing this was caused by excessive rainfall from Ida.

.

[eyewall]

 

[jac_not_in_dc]

 

[dan11295]

https://storms.ngs.noaa.gov/storms/ida/index.html#18/29.35812/-90.25239

NOAA has some aerial imagery up, mainly along major access roads.

Things clearly visible: Flooding in Jean Lafitte. Structural damage from wind along Route 1 NW of Grand Isle Through Great Meadow-Galiano- Cut off Etc. 

[Windspeed]

https://storms.ngs.noaa.gov/storms/ida/index.html#18/29.35812/-90.25239
NOAA has some aerial imagery up, mainly along major access roads.
Things clearly visible: Flooding in Jean Lafitte. Structural damage from wind along Route 1 NW of Grand Isle Through Great Meadow-Galiano- Cut off Etc. 

Smith is now breaking these down so it may be a little more convenient for some via Twitter.

[Windspeed]

Ida may end up remembered as much for its extensive widespread flooding over the central Appalachians and Mid-Atlantic region as its impacts on the Gulf Coast here in the coming days. The mesoscale models are pumping out some insanely high totals over a large region. Oh, and look here, me posting the NAM in a tropical thread; whereby, inland flooding from baroclinic influences upon a surface low and frontogenesis, which is more within its wheelhouse of intended usage. The HRRR is showing much the same as is the RAP. Hope these are just being way overdone. Otherwise, Ida isn't done with the news cycles anytime soon.

[Jim Marusak]

thinking river-problem-wise, here's where I am seeing the most potential river flooding flooding problems, given the latest ensembles and latest op runs.

 

• Susquehanna River - south of Bloomsburg/Sunbury gauge-points.
• Delaware River - near/south of Allentown/Bethlehem/Easton
• Lehigh River - All points south of Francis Walter Dam
• Schuykill river - full length
• all north/central NJ river systems away from the Delaware Basin
• Potomac River - all points downstream from Cumberland Md, including DC.

this doesn't include local creeks and streams, where local heavy rainfalls will make things more problematic, for shorter times, as well as urban street flooding.

[ncforecaster89]

On 8/29/2021 at 9:33 PM, jojo762 said:

This is that dude who's stream everybody had to, very unfortunately, listen to earlier.

As a veteran storm chaser and one who was stranded in Mexico Beach (because I lost my car to the surge by placing myself within 400 yards of the GOM and in the RFQ of the inner-eyewall of hurricane Michael), I have very little sympathy for chasers who intentionally get too close and THEN, except others to risk their own lives to help/save them!

When I made the aforementioned similar/foolish decision, I accepted responsibility for my actions and dealt with the consequences (which weren’t fun).   

I could be wrong, but there seems to be too many chasers trying to one-up the others and their corresponding attention-seeking, selfie-centered attitude has been leading to more of these situations.  Unfortunately, I expect we’ll continue to see this occur on a more regular basis, as the years go by.

To avoid any misinterpretations, I want to clarify that my issue isn’t that they chose to get that close, but rather, the expectation that someone should help them…that would require someone else to endanger their own lives in the process.  
 

P.S. Mods, please move this post to banter if you feel it belongs there, instead.  

[Maestrobjwa]

5 hours ago, Windspeed said:

Ida may end up remembered as much for its extensive widespread flooding over the central Appalachians and Mid-Atlantic region as its impacts on the Gulf Coast here in the coming days. The mesoscale models are pumping out some insanely high totals over a large region. Oh, and look here, me posting the NAM in a tropical thread; whereby, inland flooding from baroclinic influences upon a surface low and frontogenesis, which is more within its wheelhouse of intended usage. The HRRR is showing much the same as is the RAP. Hope these are just being way overdone. Otherwise, Ida isn't done with the news cycles anytime soon.

Question: why did the precip max setup inland instead of more in the I-95 corridor? Does it have something to do with elevation? Or is it just the storm track?

[Chinook]

from NWS-WPC storm summaries.  web page:    https://www.wpc.ncep.noaa.gov/discussions/nfdscc4.html

Quote

...Selected preliminary Peak Wind gusts in miles per hour earlier
in the event...

...ALABAMA...
MOBILE REGIONAL AIRPORT                54                    

...FLORIDA...
PENSACOLA INTL AIRPORT                 54                    

...LOUISIANA...
PORT FOURCHON                         172 SHIP IN PORT 5 19 5
VENICE 24 S                           128                    
GOLDEN MEADOW 2 NNW                   125                    
GALLIANO 3 ENE                        122 UF MESONET TOWER 5 1
VENICE 26 S                           121                    
GRAND ISLE 42 SSE                     117                    
DULAC 2 NNW                           110                    
NEW ORLEANS 5 SSE                      99                    
RACELAND                               99                    
GRAND ISLE 3 NE                        95                    
NEW ORLEANS INTL AIRPORT               90                    
MANDEVILLE 12 SSW                      86                    
LAPLACE 4 NE                           84                    
WAGGAMAN 1 NE                          82                    
VENICE 9 SE                            81                    
GONZALES 1 N                           80                    
BURNS POINT 16 SE                      63                    

...MISSISSIPPI...
GULFPORT-BILOXI INTL AIRPORT           68                    
BUDE 3 S                               67  

 

Quote

...LOUISIANA...
RIGOLETS-SLIDELL 8 SSE              15.73                    
NEW ORLEANS                         13.73                    
NAPOLEAN 2 NW                       11.27                    
FOLSOM                              10.67                    
LAKE PONTCHARTRAIN                  10.19                    
SLIDELL AIRPORT                      9.19                    
METAIRIE                             8.81                    
COVINGTON                            7.68                    

...MISSISSIPPI...
BAY ST LOUIS 1.4 WSW                13.12                    
MOSS POINT 1.2 NNW                  12.54                    
KILN 6.6N                           12.14                    
BILOXI 13.1 NNW                     12.08                    
TRENT LOTT INTL AIRPORT             12.00                    
GULFPORT-BILOXI INTL ARPT           10.72                    
HANCOCK                             10.66   

 

[NorthHillsWx]

Serious damage in Grand Isle:

 

[eyewall]

2 hours ago, NorthHillsWx said:

Serious damage in Grand Isle:

 

That looks real bad. Lots of houses completely gone as well.

[BuffaloWeather]

1 hour ago, eyewall said:

That looks real bad. Lots of houses completely gone as well.

Yeah, that's the most intense damage I've seen from a hurricane since Katrina. Lots of slabs left.

[NorthHillsWx]

1 hour ago, eyewall said:

That looks real bad. Lots of houses completely gone as well.

Fits the term “catastrophic” for me. What’s crazy is surge looked to be very high and caused a large portion of the damage, but wind damage looks just as severe with many homes having their entire second stories shredded away and even apparent well-built homes having major damage as well. This was one of the most high-end wind impacts in history for the US. Just a historic storm all around 

[Intensewind002]

4 hours ago, NorthHillsWx said:

Serious damage in Grand Isle:

 

Grand isle only got brushed by the inner eyewall too which is kinda crazy

[ncforecaster89]

7 hours ago, NorthHillsWx said:

Serious damage in Grand Isle:

 

Those images look way too familiar to what I observed in the aftermath of Hurricane Michael in Mexico Beach.  The bare slabs and the shredded upper-levels of some homes are eerily similar!    
 

It was every bit of a high-end category four wind producer combined with a catastrophic storm surge.  Goes to show that it doesn’t technically have to be a category-five hurricane to produce catastrophic damage!

 I like the way 130 kt is characterized as a super Typhoon in the WPAC as a TC of such intensity is truly a “super” destructive storm.   

[Windspeed]

Ida's remnant low is wreaking havoc on the Northeast this evening. The total of this event from LA to Maine is going to punch the top five costliest in US history.

[cptcatz]

Seeing the catastrophic flooding happening in New Jersey, NYC, and now moving into Long Island, I wouldn't be surprised if the flooding costs in the northeast exceed the wind/surge costs in Louisiana. Reminds me a lot of Floyd.

[ncforecaster89]

On 9/1/2021 at 6:05 PM, Intensewind002 said:

Grand isle only got brushed by the inner eyewall too which is kinda crazy

The most unfortunate part of Ida’s track is that it drove the highest storm surge into Grand Isle.  It’s also important to note that the aborted ERC that made Ida a double-eyewall hurricane likely contributed to the devastation left in its wake. 

[hlcater]

The damage tag for this storm will be one of the greats. Thinking north of 50bn is basically locked in.

[the ghost of OT]

2 minutes ago, hlcater said:

The damage tag for this storm will be one of the greats. Thinking north of 50bn is basically locked in.

Do these floods from the remnants count? If so it may do 50bn today. 

[hlcater]

8 minutes ago, Tezeta said:

Do these floods from the remnants count? If so it may do 50bn today. 

Yea. These will go on the price tag.

[Windspeed]

Do these floods from the remnants count? If so it may do 50bn today. 

Yes. The cyclonic low is post-tropical, but still the same system. See: Sandy, Agnes, Hazel, etc.

[cptcatz]

This could be a worse disaster for the NYC metro region than Sandy was. The videos of the flooding is just mind boggling. 

[Witness Protection Program]

Comparable to Agnes? (as a whole, not just NYC region)

[MJO812]

49 minutes ago, cptcatz said:

This could be a worse disaster for the NYC metro region than Sandy was. The videos of the flooding is just mind boggling. 

Not even close

[thess]

Check out the NYC metro sub and especially https://old.reddit.com/r/nyc/new/ to see the insanity of what is happening now.

 

 

[CheeselandSkies]

What looked from video like a fairly large tornado occurred in New Jersey associated with Ida's remnant low.

[MJO812]

17 minutes ago, thess said:

Check out the NYC metro sub and especially https://old.reddit.com/r/nyc/new/ to see the insanity of what is happening now.

 

 

Flooding everywhere 

[cptcatz]

7 hours ago, MJO812 said:

Not even close

I wouldn't be so sure about that. The Sandy impacts were mainly from coastal flooding with moderate wind impacts throughout the rest of the region. Inland area impacts were limited to widespread power outages from falling tree limbs and transformer blowouts. The bulk of the costly impacts were from the surge flooding along the coasts, flooding all the tunnels, basements, utility rooms, etc. in the coastal areas.

In contrast, last night's flooding looked to include all the coastal areas that Sandy flooded, IN ADDITION to incredible widespread inland flooding throughout the rest of the highly densely populated metropolitan region. Flooding insurance claims are FAR more expensive than moderate wind damage and there are going to be a ton of inland houses and office buildings waking up to feet of water in their basements this morning. Once people start assessing the damage today, this is gonna turn ugly and astronomically expensive.