( CNN ) -- The remains of Tropical Storm Karen drifted over the northern Gulf of Mexico after the former cyclone fizzled out Sunday morning , forecasters reported . After being downgraded from a tropical storm to a depression overnight , Karen broke up into disorganized remnants south of Louisiana , the Miami-based National Hurricane Center said . Top sustained winds had fallen to about 30 mph , and the system was blowing east without a well-defined center , the hurricane center reported . The storm was still expected to drop between 1 and 3 inches of rain over the central Gulf Coast and Southeast through Monday , raising the possibility of localized coastal flooding , but all storm warnings were discontinued late Saturday . Karen formed on Thursday between Cuba and Mexico 's Yucatan Peninsula with 65-mph winds . By Friday , its top winds had fallen to 40 mph , and forecasters said it would n't develop into a hurricane .
NEW : Karen no longer a tropical cyclone , top winds drop to 30 mph . The storm is blowing eastward in the Gulf of Mexico . Karen could leave 1 to 3 inches of rain in parts of the central Gulf Coast and Southeast .