Olga is expected to bring heavy rain to parts of Louisiana and Mississippi on Saturday, according to the National Weather Service. The central Gulf Coast in the lower Mississippi Valley and the western Tennessee Valley could receive 3 to 6 inches of rain, according to forecasters.
On Saturday, flooding of the coast from above normal tides and occasional tornadoes is possible when the storm moves in, the weather service said.
The storm, which was downgraded to a post-tropical hurricane on Friday night, caused disruptions on early Saturday. Entergy New Orleans reported at 6am that tens of thousands of customers were out of power. The number increased during the morning.
The Louis Armstrong New Orleans International Airport reported hours later that its power had been restored, "the airport authorities said in a tweet.
A post-tropic hurricane still carries heavy rain and strong wind, but does not have the characteristics anymore According to the National Hurricane Center, Olga became a tropical storm with wind speeds in the range of 39 to 73 miles per hour on Friday afternoon.