Almost all warnings for what had been Category 2 Hurricane Francine were canceled Thursday night, a day after the storm slammed into the Louisiana coast with heavy rains and 100-mph winds.

By late Thursday, Francine was a post-tropical cyclone, and flood watches and wind advisories were in effect for parts of the Mississippi Delta, the Tennessee Valley and the Southeastern U.S. at 11 p.m. ET, the National Hurricane Center said.

At 5 a.m. ET Friday the storm was 90 miles north-west of Memphis,…