Isaac remains a hurricane, centered at 10 am CDT over the city of Houma, Louisiana. Maximum sustained winds are 75 mph. Gradual weakening is expected, and Isaac should become a tropical storm later today as it moves slowly northwest through tonight.
A Hurricane Warning continues along the coast from just east of Morgan City, Louisiana, eastward to the Mississippi/Alabama state line. A wind gust
to 74 mph was reported at the Mid Lake Station in Lake Pontchartrain, and a gust to 63 mph at New Orleans Lakefront Airport.
Winds affecting the upper floors of high-rise buildings will be significantly higher than those near ground level. At the 30th floor, it would likely be one category higher on the Saffir-Simpson Hurricane Wind Scale.
Storm surge of 6 to 12 feet is occurring in the hurricane warning area, with 3 to 6 feet on the Alabama coastline.
Rainfall amounts of 7 to 14 inches, with isolated 20 inches, are possible over much of Louisiana, southern Mississippi and southwest Alabama through Friday morning, resulting in significant lowland flooding that could last for days. This rain will spread into southern Arkansas on Thursday, with 3 to 6 inches expected by Friday morning, too.
Isolated tornadoes are possible today along the central Gulf coast today and lower Mississippi Valley.
Get the latest on Isaac, including watches, warnings, graphics and storm surge, on the NOAA NHC website at www.hurricanes.gov
For local impacts, go to the NOAA National Weather Service website at http://www.weather.gov/
Winds affecting the upper floors of high-rise buildings will be significantly higher than those near ground level. At the 30th floor, it would likely be one category higher on the Saffir-Simpson Hurricane Wind Scale.
Storm surge of 6 to 12 feet is occurring in the hurricane warning area, with 3 to 6 feet on the Alabama coastline.
Rainfall amounts of 7 to 14 inches, with isolated 20 inches, are possible over much of Louisiana, southern Mississippi and southwest Alabama through Friday morning, resulting in significant lowland flooding that could last for days. This rain will spread into southern Arkansas on Thursday, with 3 to 6 inches expected by Friday morning, too.
Isolated tornadoes are possible today along the central Gulf coast today and lower Mississippi Valley.
Get the latest on Isaac, including watches, warnings, graphics and storm surge, on the NOAA NHC website at www.hurricanes.gov
For local impacts, go to the NOAA National Weather Service website at http://www.weather.gov/
No rain at this time here in Vicksburg but windy at times. I'm sure as the day progresses we will be involved as it moves inland. Half-a-million people are without power right now and I'm sure that will climb as well.
The big picture
August 29, 2012 at 10 am CDT
Hurricane Isaac extends from western boundary of Louisiana across all of Mississippi and into Alabama. Rain covers the lower half of Mississippi.
Two new tropical storms TS KIRK and TS ILEANA
August 29, 2012 at 10 am CDT
Hurricane Isaac extends from western boundary of Louisiana across all of Mississippi and into Alabama. Rain covers the lower half of Mississippi.
Two new tropical storms TS KIRK and TS ILEANA