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Slow-Churning Isaac Captured in Detailed Satellite Image

satellite image of hurricane Isaac
At 1:35pm CDT on August 28, 2012 the recently launched Suomi NPP satellite flew over Isaac, capturing this image of the storm with the true color capability of the VIIRS sensor. (Image credit: Data courtesy of the NOAA/NASA Suomi NPP satellite)

A new satellite image of Hurricane Isaac reveals the storm swirling toward the Louisiana coast, obscuring much of the eastern Gulf of Mexico.

The image was captured at 1:35 p.m. CDT (1735 UTC) on Aug. 28 by the Suomi NPP satellite. The orbiter snapped the image between the hurricane's two landfalls last night. The storm first hit land in Plaquemines Parish, La., at 6:45 p.m. CDT (1145 UTC) and then moved back over water for several hours until 2:15 a.m. CDT (0715 UTC), when it made landfall again near Port Fourchon, La.

The Category 1 hurricane is weakening as it moves inland this morning (Aug. 29). As of 9 a.m. CDT (1400 UTC), the storm's maximum sustained winds were blowing around 75 miles per hour (121 kilometers per hour), according to the National Weather Service (NWS). Water overtopped a levee in Plaquemines Parish, causing major flooding.

The center of Hurricane Isaac is now about 40 miles (64 km) southwest of New Orleans, the NWS reported. The storm is expected to move over Louisiana today and tomorrow, bringing rain to southern Arkansas by Friday.

About the size of a small school bus, Suomi NPP orbits the Earth about 14 times each day, observing nearly the entire planet surface. Among its five instruments, the Visible Infrared Imaging Radiometer Suite (VIIRS) is responsible for the detailed, swirling image of Hurricane Isaac.

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Stephanie Pappas
Stephanie Pappas is a contributing writer for Live Science. She covers the world of human and animal behavior, as well as paleontology and other science topics. Stephanie has a Bachelor of Arts in psychology from the University of South Carolina and a graduate certificate in science communication from the University of California, Santa Cruz. She has ducked under a glacier in Switzerland and poked hot lava with a stick in Hawaii. Stephanie hails from East Tennessee, the global center for salamander diversity. Follow Stephanie on Google+.