ATL: ISAAC - Post-Tropical - Discussion

[SeaBrz_FL]

If anyone's interested in somewhat-real-time effects of Isaac inside NOLA I can continue to make an occaisional post up until such time that we lose power and internet access. I promise, much less long-winded than this post....

Yes, please do. That would be great first hand information.

But better to do it on the Observations thread instead of this one.

OMG -- this is a brand new member willing to contribute real-time OBS from NOLA and you are asking her/him to post in another forum? These H discussion threads mostly get quiet after landfall anyway, so can we accommodate this one new poster's input for now? Next year, she/he will become more familiar with the site.

[monicaei]

Those familiar with the lay of the "land" (I use that term loosely) in coastal La, does it seem like Barataria Bay looks likely to be the ultimate destination for Isaac? Or other side of the river, closer to the sound?

It looks like the cluster of strong stuff seems headed for the horseshoe between GI and Venice, that area between the Grand Terre chain/Quatre Bayous and maybe Bastain Bay? I'm a complete neophyte, so disregard if I'm totally wrong.

What are the implications surge wise if it's one side of the river or the other?

[lester]

Isaac has strengthened to 80 mph

[Extratropical1]

Two things:

(1) Sometimes I think peeps are taking their cues from the dropsonde fix points as opposed to the storm motion over a number of hours or days. So, if you look at the dropsondes over the last 3 hours it looks like Isaac has been doing circles out in the Gulf....and I think that *can* become a case of looking at the trees but missing the forrest.

(2) Local observation...rain bands moving in from SE to NW, gusty winds associated with the bands. However, so far the gusts aren't as potent as I thought they would be. The bands are rather passing through and to the north. In south-central Mississippi (where these bands end up) they really ramp it up and are producing severe thunderstorms around Laurel-Hattiesburg.

Same thing happened here in Tampa past few days. East Coast of FL (farthest from storm) got drenched and damage reported. Not much at all in Tampa (relatively speaking). I got 2.54 inches in my rain gauge from Saturday through Monday night!

[Gufler]

If anyone's interested in somewhat-real-time effects of Isaac inside NOLA I can continue to make an occaisional post up until such time that we lose power and internet access. I promise, much less long-winded than this post....

Hi Puddinhead.. please stay safe. Yes your observation post are great...ty

[CronkPSU]

5PM update...975 mb, 80 mph...NW at 8

[jabman98]

In Houston this morning we had brisk north winds. Now the winds are mostly gone and we have high clouds, so you can't see the sun but it's bright. Are the clouds from Isaac? I didn't think we'd see anything from Isaac yet this far west and inland.

To answer your question ... yes. We are even seeing high cloudiness from Isaac here in south central Texas.

Thanks. Didn't realize the effects from him were being felt so far west. I thought we were going to have north winds and a clear day, so was surprised by the clouds.

[Wx_Warrior]

NHC 4pm Advisory

BULLETIN
HURRICANE ISAAC ADVISORY NUMBER 31
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
400 PM CDT TUE AUG 28 2012

...ISAAC GETTING BETTER ORGANIZED AS IT NEARS SOUTHEASTERN
LOUISIANA...FLOODING FROM STORM SURGE AND RAINFALL EXPECTED...


SUMMARY OF 400 PM CDT...2100 UTC...INFORMATION
----------------------------------------------
LOCATION...28.7N 89.2W
ABOUT 30 MI...45 KM SSW OF THE MOUTH OF THE MISSISSIPPI RIVER
ABOUT 105 MI...170 KM SSE OF NEW ORLEANS LOUISIANA
MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H
PRESENT MOVEMENT...NW OR 310 DEGREES AT 8 MPH...13 KM/H
MINIMUM CENTRAL PRESSURE...975 MB...28.79 INCHES

[thatwhichisnt]

http://tropic.ssec.wisc.edu/real-time/m ... 2hr_08.gif

[ATCcane]

Uploaded with ImageShack.us




Uploaded with ImageShack.us

A couple of screen shots of Isaac using SimuAWIPS. Pretty cool tool for the weather enthusiast that I stumbled upon today. Best of all is it's free

[WeatherGuesser]

4:00 PM CDT Tue Aug 28
Location: 28.7°N 89.2°W
Moving: NW at 8 mph
Min pressure: 975 mb
Max sustained: 80 mph

[SunnyThoughts]

This takes quite a while to load 200 frames so be mindful of that, but oh oh ohhh is it worth it.

http://www.ssec.wisc.edu/data/1min/index.php?action=view_animation&req_method=nframes_enddate&enddate=20120828&endtime=1803&nframes=200&band=1&res=1&aniwidth=null&aniheight=null

[TwisterFanatic]

It's REALLY slowing down.

[Rail Dawg]

I just left Lafeyette, LA and am on Hwy 90 heading to Morgan City. For Gustav I made a stand near here in New Iberia.

Does anyone want some reports? I was going to Houma but may choose Morgan City.

Been doing this for a long time.

[superstareporter]

The air here is very warm and moist, you can feel the energy in the air. Conditions are going downhill will huge waves breaking out on Pensacola Beach, and on Bayfront seawall! I am going back on what I said earlier (eating crow as you guys say), and think this thing still will strengthen a bit more perhaps from the way the outside conditions are.

Usual Disclaimer inserted here.

[LSU2001]

Those familiar with the lay of the "land" (I use that term loosely) in coastal La, does it seem like Barataria Bay looks likely to be the ultimate destination for Isaac? Or other side of the river, closer to the sound?

It looks like the cluster of strong stuff seems headed for the horseshoe between GI and Venice, that area between the Grand Terre chain/Quatre Bayous and maybe Bastain Bay? I'm a complete neophyte, so disregard if I'm totally wrong.

What are the implications surge wise if it's one side of the river or the other?

I think Barateria bay looks like ground zero for now. However if some of the models verify we could see Morgan city to vermillion bay. I know it is getting bad here in cut off which is only about 25 miles as the crow flies from GI.
Tim

Only the opinion of a non-qualified poster see NHC and local officials for accurate info.

[WeatherGuesser]

It's REALLY slowing down.

Which is going to increase the flooding risk.

[wkwally]

The effects are this far south also as the banding is being seen here in Brownsville

[tolakram]

latest NO saved radar loop

[Portastorm]

Two friendly reminders:

1) If a member feels a post has violated a rule or is located in a thread which isn't entirely appropriate, report the post and we admins/mods will take care of it. Please do not make public posts and police your fellow members that way.

2) Yes, posts about observations for Isaac are supposed to be in the observation thread. In this case, Puddinhead did just that and provided us with a great report.