ATL: LAURA - Post-Tropical - Discussion

[cheezyWXguy]

This may be a question for GCANE, but are those convective bursts off the tx coast going to serve as insulation from dry air to the inflow?

[Highteeld]

Another surge of lighting in the eastern eyewall

[Highteeld]

Based on NHC working best track and latest recon fix, Laura has intensified by 50KT over the past 24hours, and 20KT over the past 6hours alone.

Just barely missed qualifying for ERI

[hohnywx]

Winds up to 140 MPH, pressure down to 952 mb

 https://twitter.com/NHC_Atlantic/status/1298677099390091264

[weeniepatrol]

sustained winds up to 140mph now...... holy %%%%%%#$

[NotoSans]

Intermediate advisory at 120KT/952mb.

[hurricaneCW]

I think she's pretty much leveling off right now. We may see one more round of strengthening early tonight as we approach DMAX before it levels off and/or weakens a couple hours before landfall.

If we see that round of strengthening then 155-160mph would be possible otherwise 140-145mph will be the top intensity. Landfall should be 135-140mph unless EWRC occurs.

Increase in shear and/or cooler shelf waters could also cause this to weaken. The lowest strength will be 110/115mph and highest 145mph.

[Beef Stew]

1:00 PM CDT Wed Aug 26
Location: 27.3°N 92.5°W
Moving: NW at 16 mph
Min pressure: 952 mb
Max sustained: 140 mph

[wx98]

I'm used to tornado warnings with the outer bands of landfalling tropical cyclones, but I've seldom if ever seen severe thunderstorm warnings for damaging straight-line winds from cells in the outer bands. Was one earlier west of New Orleans (still in effect actually), now one near Lake Charles as well.

TWC just showed I-10 bridge in Lake Charles and visibility is next to nothing.

[Blown Away]

Wow.

[SouthFLTropics]

I have a friend who is a merchant marine and is riding out Laura on a tugboat in Lake Charles.


Sent from my iPhone using Tapatalk

Your friend might want to reconsider that. Highly.

It’s his job. Not his first storm. Been through many before.


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[BYG Jacob]

Another surge of lighting in the eastern eyewall

https://i.imgur.com/YfU8xTR.png

More towers about to go up

[Hypercane_Kyle]

...CATASTROPHIC STORM SURGE, EXTREME WINDS, AND FLASH FLOODING EXPECTED ALONG THE NORTHWEST GULF COAST TONIGHT... ...LITTLE TIME REMAINS TO PROTECT LIFE AND PROPERTY...
1:00 PM CDT Wed Aug 26
Location: 27.3°N 92.5°W
Moving: NW at 16 mph
Min pressure: 952 mb
Max sustained: 140 mph

[Beef Stew]

And just like that... we're only 5 kts away from the prior advisory's peak intensity.

[tolakram]

BULLETIN
Hurricane Laura Intermediate Advisory Number 27A
NWS National Hurricane Center Miami FL AL132020
100 PM CDT Wed Aug 26 2020

...AIR FORCE HURRICANE HUNTER AIRCRAFT REPORTS LAURA HAS BECOME AN
EXTREMELY DANGEROUS CATEGORY 4 HURRICANE...
...CATASTROPHIC STORM SURGE, EXTREME WINDS, AND FLASH FLOODING
EXPECTED ALONG THE NORTHWEST GULF COAST TONIGHT...
...LITTLE TIME REMAINS TO PROTECT LIFE AND PROPERTY...


SUMMARY OF 100 PM CDT...1800 UTC...INFORMATION
----------------------------------------------
LOCATION...27.3N 92.5W
ABOUT 200 MI...320 KM SSE OF LAKE CHARLES LOUISIANA
ABOUT 200 MI...320 KM SSE OF PORT ARTHUR TEXAS
MAXIMUM SUSTAINED WINDS...140 MPH...220 KM/H
PRESENT MOVEMENT...NW OR 315 DEGREES AT 16 MPH...26 KM/H
MINIMUM CENTRAL PRESSURE...952 MB...28.11 INCHES

[wx98]

1:00 PM CDT Wed Aug 26
Location: 27.3°N 92.5°W
Moving: NW at 16 mph
Min pressure: 952 mb
Max sustained: 140 mph

[northjaxpro]

Solid cat 4. When’s the “shear” supposed to set in?

18z-21z (2 pm-5 pm EDT) should be a shear minimum for the storm.

By 6z (2 am EDT tomorrow), shear should be picking up to where no further intensification should be expected, but this very well may make landfall by then.

So basically shear isn’t gonna stop this monster in time. Only internal changes/dynamics will result in intensity changes at this point.

At this point, there is virtually absolutely nothing to impede Laura from bottoming out unfortunately. We are witnessing probably THE worse case scenario, or certainly among the worse we all fear. This is as REAL as it gets folks!!

[FLpanhandle91]

If it's any good news, southern eyewall storm still has some catching up to do.

[Hybridstorm_November2001]

Stay safe everyone.

For those who can get out my advice is get out now!!!

As someone who rode out Hurricane Andrew (when I was a child) in South Florida, take it from me, you don't want to be in the path of a cat 4 or 5 hurricane. Unless you've witnessed one of these monsters first hand you can't even imagine what it can do.

[hohnywx]

Mesoscale discussion just issued for wind gusts and isolated tornadoes.

 https://twitter.com/NWSSPC/status/1298677917073829892