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Hurricane Isaac Storm Reports


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Anyone know if there is a known flood stage for Shell Beach?

NWS page states "unavailable" and no historic crests available

http://water.weather...=lix&gage=shbl1

The flood stage is probably 2 ft there, total swamp. Surge just crossed 11 ft, 9 ft short of Katrina...

Gusting to 89 mph at pilot town directly parallel to the river.

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per TWC 4.54" rain so far at Lakefront Airport in NO, though I can't find confirmation of that on web

http://mesowest.utah.edu/cgi-bin/droman/meso_base.cgi?stn=KNEW&unit=0&timetype=LOCAL

1.34" last hour, I believe that exceeds what the pumps can handle since Jim Cantore was talking about 1"/hour alot. Really heavy bands continuing to rotate in.

4.72" now, it's increasing so quickly

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TOR up for Mobile, AL

BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE MOBILE AL

1249 AM CDT WED AUG 29 2012

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...

WEST CENTRAL BALDWIN COUNTY IN SOUTHWEST ALABAMA...

NORTHERN MOBILE COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 145 AM CDT

* AT 1246 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A

TORNADO WAS LOCATED 4 MILES SOUTHWEST OF ROBERTSDALE...OR 3 MILES

WEST OF SUMMERDALE...MOVING NORTHWEST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...

DOWNTOWN MOBILE... MOVICO... SATSUMA...

SARALAND... PRICHARD... MOUNT VERNON...

I65 AND US 45... I65 AND US 43... I65 AND I165...

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 24 AND 46. THIS

INCLUDES INTERSTATE 65 BETWEEN MILE MARKERS 5 AND 30.

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Rise of the Mississippi at New Orleans accelerating again, 12.38 ft as of midnight, so up 0.39 ft in an hour.

Reports that the pumps have been shut off in parts of Plaquemines from the surge, no point pumping water that's gonna flow right back over. Might be that the whole east bank is being overtopped since it's 11 ft at Shell Beach + 10-20 ft waves.

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perhaps this belongs in Banter but almost empty now and want to share with others who can appreciate...

I'm absolutely astounded by this weather phenomenon: a stalled tropical cyclone, almost stationary dumping rain on New Orleans, exactly 7 years after Katrina. If GFS/Euro are correct, this will continue through much of Wednesday.

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I agree with everything Turtle has been saying.

The worst surge isn't even occurring yet. Once this band of 80-90 mph surface winds moves ashore, your going to see some heavy surge rises.

Absolutely textbook spot for funneling.

Where do you see that at?

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Surge steadying out at Shell Beach, probably from wind blowing towards the other side of the bay. Water is now pushing directly into Lake Pontchartrain and surge is up to 4.5 ft, highest levels so far. Highest levels of the night have maintained themselves at the delta tip too.

West of the Mississippi is just beginning, 3.6 ft at Grand Isle, probably even higher to the east. I wonder if anything is even above water though lol

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on the same exact day of hurricane katrina. wow.

wondering if the morning news will look like this again

South Plaquemines Parish is a really, really, really long way from New Orleans (tip of the Delta) and there are zillions of levees.

So no, it won't look that way in the morning.

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Isaac's wind impacts on land have overperformed IMHO, especially considering how its convection has fallen apart and become much less symmetrical in the past 6 hours. I've collected some of the more impressive gusts.

Some peak gusts from WeatherBug stations:

Poydras, LA: 97 mph: http://weather.weatherbug.com/LA/Saint%20Bernard-weather.html?zcode=z6286&stat=PYDRS

(about 10 miles ESE of New Orleans on e. bank of Mississippi River)

Chalmette, LA: 79 mph (http://weather.weatherbug.com/LA/Chalmette-weather.html?zcode=z6286&stat=CHLMT)

(about 7 miles E of New Orleans on e. bank of Mississippi River)

Jefferson, LA: 70 mph (http://weather.weatherbug.com/LA/New%20Orleans-weather.html?zcode=z6286&stat=NOJPS

(about 5 miles W of downtown New Orleans on e. bank of Mississippi River)

Peak gusts from Weather Underground stations:

Belle Chasse, LA: 80 mph (http://www.wunderground.com/weatherstation/WXDailyHistory.asp?ID=KLABELLE4&day=29&year=2012&month=8)

(about 10 miles SE of New Orleans on e. bank of Mississippi River)

New Orleans, LA - 69 mph (http://www.wunderground.com/weatherstation/WXDailyHistory.asp?ID=KLANEWOR33&day=28&year=2012&month=8)

(Freret Street, very near downtown:)

NWS stations:

New Orleans NAS: 79 mph (http://www.wunderground.com/history/airport/KNBG/2012/08/29/DailyHistory.html)

Peak gust occurred in past hour.

Boothville, LA: 78 mph (http://www.wunderground.com/history/airport/KBVE/2012/8/29/DailyHistory.html)

Galliano, LA: Sustained 58 mph, gust 77 mph (http://www.wunderground.com/history/airport/KGAO/2012/8/28/DailyHistory.html)

Buoys:

New Canal, LA: Sustained 62 mph, gust 80 mph (http://www.ndbc.noaa.gov/station_page.php?station=nwcl1)

(Located in New Orleans)

Grand Isle, LA: Sustained 67 mph, gust 85 mph (http://www.ndbc.noaa.gov/station_page.php?station=gisl1)

Shell Beach, LA: Sustained 64 mph, gust 78 mph (http://www.ndbc.noaa.gov/station_page.php?station=shbl1)

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