ATL: ISAAC - Post-Tropical - Discussion

[SunnyThoughts]

NHC....stationary as per local NO tv station.

[LSU2001]

1:00 AM CDT Wed Aug 29
Location: 29.0°N 90.0°W
Moving: Stationary
Min pressure: 969 mb
Max sustained: 80 mp

[Texashawk]

2853N 9001W - Old VDM
2859N 8956W - New probable center


Indeed NE. 5 seconds north and 5 seconds east. Though it does look like the center is reforming a bit on radar.

[Wx_Warrior]

Some dry air eating at eye NW quad.

[LSU2001]

Getting the worst winds of the night so far. I am starting to see some slight siding damage to the house and the house is shaking quite a bit more than earlier. I am still hearing trees or big limbs snapping in the woods by the house. I have no worries about the house coming down but the wife is getting a bit paranoid with the constant shaking despite me telling her all day that it would be vibrating tonight.
Winds have been about 60 -70 mph est. with much higher gusts. I should be seeking the eye soon (or not ) and then I can do a better damage assessment. From the way it sounds it will get worse before it gets better.
Tim

[rtd2]

Possible due north mvt to lake ponchatrain AFTER stationary is over?

[Wx_Warrior]

^could be EURO model running shows north movement tomorrow eve.

[Texashawk]

Wow... the inner core is really coming apart in a hurry. Also seems to be decoupling a bit.

[WxGuy1]

Cloud tops on IR imagery have been warming for the past few hours, so it's not surprising to see convection decreasing. It looks like the storm has reached its peak intensity, and it looks like some dry air over and proximity to land is shaving away the northwestern quadrant of the storm. Radial velocity data from KLIX also indicate winds (at the radar beam height, at least) may have peaked and may be decreasing slowly now.

Isaac surprised me this evening, and I continue to maintain that coastal residents were fortunate that the organization we saw during the late afternoon through mid-late evening didn't occur last night.

EDIT: I don't mean to say that conditions you may be experienced won't get worse! If Isaac actually begins moving, conditions across the New Orleans area may get worse. I just think it's most likely that the minimum central pressure and the maximum sustained winds associated with Isaac have reached peak intensity. Your local conditions may not necessarily weaken , particularly if the "eye", or whatever is left of it, gets closer to you.

[LSU2001]

Good, Let him die quickly!!!

[Anthysteg00]

Still slightly NE in latest fix.

[Steve]

Very awesome night in bucktown. We have been going almost 8 hours nonstop. Sideways rain still falling, winds still gusting upper 50s, we are under a nice training band. I'm inside the levees but close to the lake. 9 out of 10 for a cat 1 so far.

[boca]

It was the rain that got us here in Palm Beach County we had 15" of rain.School is finally open tomorrow good luck Luisiania neighbor.

[Hammy]

given the slow movement, low pressure, and location, Juan in 1985 keeps popping into my head with this now

[KimmieLa]

Hard to imagine that we still have hours and hours of this left to go through and the rains have not begun in Baton Rouge. The wind is roaring, got to be in the mid to upper 40's and it is not stopping. I hear it hitting the house. The creaking is very unnerving. Still have electricity, thank God. The local mets have nothing good to say about the next 24 hours.

I am not a met, I am just a tired cajun, seek professional help.

[Chris_in_Tampa]

Second landfall.



HURRICANE ISAAC TROPICAL CYCLONE POSITION ESTIMATE
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092012
300 AM CDT WED AUG 29 2012

...CENTER OF ISAAC MAKES SECOND LANDFALL...

REPORTS FROM AN AIR FORCE HURRICANE HUNTER AIRCRAFT AND NOAA RADAR
INDICATE THAT ISAAC MADE A SECOND LANDFALL ALONG THE COAST OF
SOUTHEAST LOUISIANA JUST WEST OF PORT FOURCHON AROUND 215 AM
CDT...0715 UTC...WITH MAXIMUM SUSTAINED WINDS OF 80 MPH...130 KM/H.

AT 300 AM CDT...0800 UTC...THE CENTER OF HURRICANE ISAAC WAS
ESTIMATED NEAR LATITUDE 29.2 NORTH...LONGITUDE 90.4 WEST...OR ABOUT
35 MILES SOUTH-SOUTHEAST OF HOUMA LOUISIANA...AND ABOUT 60 MILES
SOUTH-SOUTHWEST OF NEW ORLEANS LOUISIANA. ISAAC HAS BEGUN TO MOVE
WEST-NORTHWESTWARD NEAR 8 MPH...13 KM/H...AND A GENERAL
NORTHWESTWARD MOTION AT A SLOWER FORWARD SPEED IS EXPECTED LATER
TODAY.

A SUSTAINED WIND OF 49 MPH WITH A GUST TO 78 MPH WAS RECENTLY
REPORTED AT BOOTHVILLE.

SUMMARY OF 300 AM CDT...0800 UTC...INFORMATION
--------------------------------------------------
LOCATION...29.2N 90.4W
ABOUT 35 MI...55 KM SSE OF HOUMA LOUISIANA
ABOUT 60 MI...95 KM SSW OF NEW ORLEANS LOUISIANA
MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H
PRESENT MOVEMENT...WNW OR 300 DEGREES AT 8 MPH...13 KM/H
MINIMUM CENTRAL PRESSURE...966 MB...28.53 INCHES

$$
FORECASTER PASCH/ROBERTS

[HurryKane]

Looking for the NOAA graphic that shows the wind field in varying colors (delineated with black lines almost like isobars). Help?

[Solaris]

@NWSNewOrleans A back levee in Plaquemines is being overtopped from the St. Bernard line all the way to White Ditch, some 18 miles. Evacuations underway.

[Solaris]

Pilot Station, SW-Pass, LA

got the most wind during SE quadrant: 60 kts sustained, 80 kts in gust

http://www.ndbc.noaa.gov/show_plot.php? ... _label=CDT

[GCANE]

Awesome discussion from CIMSS Blog

http://cimss.ssec.wisc.edu/goes/blog/