ATL: IDA - Remnants - Discussion

[Mello1]

I watching it now !!!

I see hurricane force pixels

if you look closely, there are now large chunks of debris

That web cam though. Unbelievable shots from Grand Isle.

[3090]

See posts on social media saying the Mississippi is now flowing backwards because the storm surge


This is in new orleans

It actually backs up because the GOM tidal surge becomes so high, relative to the river height, the Mississippi river flow gets stonewalled where it meets the GOM. And conversely, the GOM tidal surge runs up into the river. It is really a phenomena to witness. It only happens in these rare intense Major hurricane events that come into SELA.

[SEASON_CANCELED]

See posts on social media saying the Mississippi is now flowing backwards because the storm surge


This is in new orleans

It actually backs up because the GOM tidal surge becomes so high, relative to the river height, the Mississippi river flow gets stonewalled where it meets the GOM. And conversely, the GOM tidal surge runs up into the river. It is really a phenomena to witness. It only happens in these rare intense Major hurricane events that come into SELA.

Thats really cool thanks for that

Im guessing the stonewalled water makes the river very high

[KBBOCA]

Eek. And it's early yet for New Orleans

 https://twitter.com/SWBNewOrleans/status/1432017779675308037

[HurryKane]

For some reason Ida's Wikipedia page claims the storm is now a Category 5. I haven't seen anything about this so is this true or just someone -removed-?

That’s what happens when anyone can edit a wiki page

[Steve]

According to the police Chief of Grand Isle, they clocked 148 mph a short while ago, and the wind gauge broke. Said it is the worst he has ever seen there. They are in a bunker there.
He was just on the weather channel.

Rewound it to make sure it was 148 mph.

Gust or sustained? Elevation?

He just said they recorded 148 mph and then the wind gauge broke.
Live video from there
https://www.severestudios.com/storm-cha ... ress2.html

Incredible surge and wind live

[FLpanhandle91]

I'd argue that Ida looks the best she has looked in a few hours. Cold cloud tops still firing in all quads.

[KBBOCA]

 https://twitter.com/JackSillin/status/1432019356641333249

[ScottNAtlanta]

Looks like the Grand Isle webcam is about to go under water

[tolakram]

[KBBOCA]

 https://twitter.com/JackSillin/status/1432018420883722241

[xironman]

How fast does Ida degrade going over swampland....

[SEASON_CANCELED]

For some reason Ida's Wikipedia page claims the storm is now a Category 5. I haven't seen anything about this so is this true or just someone -removed-?

That’s what happens when anyone can edit a wiki page

I know right...its almost as if Wikipedia is not reliable as i was saying lol.

[Sanibel]

Hellacious gusts being recorded on that Grand Isle weather cam...

Surge blasts last few minutes...

[chaser1]

See posts on social media saying the Mississippi is now flowing backwards because the storm surge


This is in new orleans

It actually backs up because the GOM tidal surge becomes so high, relative to the river height, the Mississippi river flow gets stonewalled where it meets the GOM. And conversely, the GOM tidal surge runs up into the river. It is really a phenomena to witness. It only happens in these rare intense Major hurricane events that come into SELA.

I'm trying to draw a mental picture of that?! One would think the net result would be for that section of the Mississippi to then completely over-wash it's banks as a result??

[artist]

Product: Air Force Vortex Message (URNT12 KNHC)
Transmitted: 29th day of the month at 16:26Z
Agency: United States Air Force
Aircraft: Lockheed WC-130J Hercules with reg. number AF97-5303
Storm Name: Ida
Storm Number & Year: 09 in 2021 (flight in the North Atlantic basin)
Mission Number: 15
Observation Number: 03

A. Time of Center Fix: 29th day of the month at 16:01:50Z
B. Center Fix Coordinates: 28.94N 90.07W
B. Center Fix Location: 71 statute miles (115 km) to the S (181°) from New Orleans, LA, USA.
C. Minimum Height at Standard Level: 2,517m (8,258ft) at 700mb
D. Minimum Sea Level Pressure: 931mb (27.50 inHg)
E. Dropsonde Surface Wind at Center: From 235° at 10kts (From the SW at 12mph)
F. Eye Character: Closed
G. Eye Shape & Diameter: Circular with a diameter of 14 nautical miles (16 statute miles)
H. Estimated (by SFMR or visually) Maximum Surface Wind Inbound: 101kts (116.2mph)
I. Location & Time of the Estimated Maximum Surface Wind Inbound: 8 nautical miles to the WNW (286°) of center fix at 15:50:30Z
J. Maximum Flight Level Wind Inbound: From 25° at 111kts (From the NNE at 127.7mph)
K. Location & Time of the Maximum Flight Level Wind Inbound: 8 nautical miles to the WNW (286°) of center fix at 15:50:30Z
L. Estimated (by SFMR or visually) Maximum Surface Wind Outbound: 114kts (131.2mph)
M. Location & Time of the Estimated Maximum Surface Wind Outbound: 5 nautical miles to the SSE (155°) of center fix at 16:06:00Z
N. Maximum Flight Level Wind Outbound: From 228° at 127kts (From the SW at 146.1mph)
O. Location & Time of the Maximum Flight Level Wind Outbound: 7 nautical miles to the SE/SSE (146°) of center fix at 16:06:30Z
P. Maximum Flight Level Temp & Pressure Altitude Outside Eye: 16°C (61°F) at a pressure alt. of 3,041m (9,977ft)
Q. Maximum Flight Level Temp & Pressure Altitude Inside Eye: 20°C (68°F) at a pressure alt. of 3,014m (9,888ft)
R. Dewpoint Temp (collected at same location as temp inside eye): 3°C (37°F)
R. Sea Surface Temp (collected at same location as temp inside eye): Not Available
S. Fix Determined By: Penetration, Radar, Wind, Pressure and Temperature
S. Fix Levels (surface & flight level centers within 5nm of each other): Surface and 700mb
T. Navigational Fix Accuracy: 0.02 nautical miles
T. Meteorological Accuracy: 1.5 nautical miles

Remarks Section:

Maximum Flight Level Wind: 127kts (~ 146.1mph) which was observed 7 nautical miles to the SE/SSE (146°) from the flight level center at 16:06:30Z
General Note About Vortex Messages:
- SFMR and flight level winds are usually averaged over a 10 second period. (The National Hurricane Center's advisory wind speeds are the highest expected winds averaged over a 1 minute period.)

[FLpanhandle91]

Wow the outer eyewall and inner eyewall have simply started melding. Lightning still going bonkers in the core. This would've made a solid run at cat 5 if it had a few more hours. Grand Isle looks like they will in fact get the eastern eye wall.

[galaxy401]

https://www.tropicaltidbits.com/sat/satlooper.php?region=09L&product=ir

What a monster!...

[SEASON_CANCELED]

See posts on social media saying the Mississippi is now flowing backwards because the storm surge


This is in new orleans

It actually backs up because the GOM tidal surge becomes so high, relative to the river height, the Mississippi river flow gets stonewalled where it meets the GOM. And conversely, the GOM tidal surge runs up into the river. It is really a phenomena to witness. It only happens in these rare intense Major hurricane events that come into SELA.

I'm trying to draw a mental picture of that?! One would think the net result would be for that section of the Mississippi to then completely over-wash it's banks as a result??

sucks for the freshwater fish that suddenly become salt water

[mrbagyo]

Fourchon Booster Station - Golden Meadow, LA
938.70 - still droping