Olga is bringing heavy rain to the Gulf Coast

Tropical Storm Olga was downgraded to a post-tropical cyclone Friday night as it continued to move toward the Gulf Coast.

Although the storm system has been reclassified, it is still expected to bring heavy rain to parts of Louisiana and Mississippi on Saturday, according to the National Weather Service.

The central Gulf Coast into the Lower Mississippi Valley and western Tennessee Valley is expected to receive 3-6 inches of rain Saturday morning, forecasters said.

Olga was about 170 miles south southeast of Lake Charles, Louisiana, late Friday with maximum sustained winds of 50 mph, according the National Hurricane Center.

Olga, previously a tropical depression, was upgraded to a tropical storm Friday afternoon. A tropical depression has wind speeds of less than 39 mph, while a tropical storm can reach wind speeds of up to 73 mph. The NHC defines a post-tropical cyclone as a storm that still carries heavy rain and high winds but no longer has some of the characteristics that would classify it as a tropical storm.

Coastal flooding from above normal tides and isolated tornadoes are possible Saturday as the storm moves in, the weather service said. There are currently no tropical cyclone watches or warnings in effect.