Weather Channel meteorlogist Jim Cantore takes on heavy winds in New Orleans from Hurricane Isaac

LIVE COVERAGE: Tracking Tropical Storm Isaac in the Gulf

Tropical Storm Isaac is pictured over Louisiana, Mississippi, Alabama and Florida in this August 30, 2012 NASA handout satellite image taken at 1345 GMT. Isaac is expected to weaken further as it heads north after causing significant damage to the U.S. Gulf Coast but nothing on the scale of Hurricane Katrina. [REUTERS/NASA/Handout] LIVE COVERAGE: The latest on Tropical Storm Isaac
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Tropical Storm Isaac is pictured over Louisiana, Mississippi, Alabama and Florida in this August 30, 2012 NASA handout satellite image taken at 1345 GMT. Isaac is expected to weaken further as it heads north after causing significant damage to the U.S. Gulf Coast but nothing on the scale of Hurricane Katrina. [REUTERS/NASA/Handout]

LIVE COVERAGE: The latest on Tropical Storm Isaac

Lessie Lewis stands on the front porch with her granddaugher Kodi Lewis, 6, as flood waters surround their home on St. Roch ave. as Hurricane Isaac makes land fall in New Orleans, Louisiana August 29, 2012. [REUTERS/Sean Gardner] LIVE COVERAGE: Hurricane Isaac slams Louisiana
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Lessie Lewis stands on the front porch with her granddaugher Kodi Lewis, 6, as flood waters surround their home on St. Roch ave. as Hurricane Isaac makes land fall in New Orleans, Louisiana August 29, 2012. [REUTERS/Sean Gardner]

LIVE COVERAGE: Hurricane Isaac slams Louisiana

Hurricane Isaac is seen making landfall on the Gulf Coast of the U.S. in this August 29, 2012 full disk satellite image courtesy of NASA. [REUTERS/NASA/GOES Project/Handout]  LIVE COVERAGE: Tracking Hurricane Isaac near New Orleans
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Hurricane Isaac is seen making landfall on the Gulf Coast of the U.S. in this August 29, 2012 full disk satellite image courtesy of NASA. [REUTERS/NASA/GOES Project/Handout] 

LIVE COVERAGE: Tracking Hurricane Isaac near New Orleans

FLASH: Reconnaissance data indicates Isaac has finally achieved hurricane status - National Hurricane Center

New Orleans resident Diana Whipple watches waves crash on the shore of Lake Pontchartrain as Tropical Storm Isaac approaches New Orleans, Louisiana, August 28, 2012. Tropical Storm Isaac was near hurricane force as it bore down on the U.S. Gulf Coast on Tuesday and was expected to make landfall in the New Orleans area seven years after it was devastated by Hurricane Katrina. [REUTERS/Jonathan Bachman]  LIVE BLOG: Tracking Tropical Storm Isaac
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New Orleans resident Diana Whipple watches waves crash on the shore of Lake Pontchartrain as Tropical Storm Isaac approaches New Orleans, Louisiana, August 28, 2012. Tropical Storm Isaac was near hurricane force as it bore down on the U.S. Gulf Coast on Tuesday and was expected to make landfall in the New Orleans area seven years after it was devastated by Hurricane Katrina. [REUTERS/Jonathan Bachman] 

LIVE BLOG: Tracking Tropical Storm Isaac