MIAMI -

Isaac slowly weakens over central Louisiana

Isaac was slowly weakening as it continued to spin life-threatening severe weather over central Louisiana.

At 11 a.m. Thursday, Isaac was about 165 miles northwest of New Orleans with maximum sustained winds at 40 mph. It was moving north-northwest at 9 mph.

PHOTOS: Hurricane Isaac at Katrina landfall site

Published On: Aug 30 2012 05:10:31 PM EDT   Updated On: Aug 30 2012 01:23:09 PM EDT
Isaac's storm surge expected to reach 12 feet

New photos added: 7 years ago today, Hurricane Katrina's eye made landfall between Bay. St. Louis and Waveland, Mississippi. In these photos, Isaac bears down in the same area.

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Photos Courtesy: Linda Ferry Pitts

Isaac was expected to turn north on Friday. The storm is expected to further weaken as it moves inland, and could become a tropical depression late Thursday.

Meantime, Tropical Depression #12 formed in the open Atlantic as Kirk was upgraded to a hurricane.

On Thursday, NOAA released a picture showing flight paths through Isaac.