At the same time the National Hurricane Center gave out its first advisory on the depression, they also gave out a tropical storm warning from Apalachicola, Florida to the delta of the Mississippi River.
Shortly thereafter, an inland tropical storm warning was given out for Pearl River, Walthall, and Pike counties in Mississippi and Washington Parish in Louisiana.
Also, the New Orleans National Weather Service gave out a coastal flood watch for four parishes in southeastern Louisiana.
In Mississippi, Governor Haley Barbour declared a state of emergency.
Officials ordered a mandatory evacuation for people living in areas of low lands and in mobile homes for Jackson, Harrison, and Hancock counties.
Officials in New Orleans opened three emergency shelters, stating the possible need of shelter for citizens in about 17,000 FEMA trailers after Hurricane Katrina.
Because of the threat of the cyclone, Louisiana governor Kathleen Blanco also declared a state of emergency and placed the state's National Guard and other disaster services on stand-by.

Before of the depression's development, several oil and gas companies removed unneeded workers from offshore oil platforms in the northern Gulf of Mexico; the Shell Oil Company evacuated about 700 employees, while Noble Energy removed its workforce of about 300 people from two oil rigs.
Exxon Mobil stopped its production by about 1,000 barrels of oil and 55,000 ft³ (1,500 m³).
With 27.7% of the daily crude oil production stopped because of the depression, oil prices rose higher after days of increasing levels, and on September 20 reached a record rate of over $84 per barrel.

Together, the wind shear and low-level helicity created moderate convection across central Florida associated with the precursor low pressure system.
Late on September 20, a supercell formed near Lake Apopka, and moved quickly northward it created an EF1 tornado near Eustis; the tornado moved around for about 2 miles (3 km) and reached winds of about 100 mph (160 km/h).
The tornado destroyed 20 homes, left 30 others severely damaged, and injured one person, and cut power for about 300 people.
The depression also created waves of about 5 feet (1.5 m) and rip currents along the west coast of Florida.
Outer rainbands began affecting coastal sections of western Florida by about 12 hours before the formation of the depression.
Precipitation in the state reached 2.83 inches (71.9 mm) in Crestview.
In other places, rainfall totals reached 1.46 inches (37.1 mm) in Albany, Georgia and 0.51 inches (13 mm) in Dothan, Alabama.
At the same time the National Hurricane Center gave out its first advisory on the depression, they also gave out a tropical storm warning from Apalachicola, Florida to the delta of the Mississippi River. Shortly thereafter, an inland tropical storm warning was given out for Pearl River, Walthall, and Pike counties in Mississippi and Washington Parish in Louisiana. Also, the New Orleans National Weather Service gave out a coastal flood watch for four parishes in southeastern Louisiana. In Mississippi, Governor Haley Barbour declared a state of emergency. Officials ordered a mandatory evacuation for people living in areas of low lands and in mobile homes for Jackson, Harrison, and Hancock counties. Officials in New Orleans opened three emergency shelters, stating the possible need of shelter for citizens in about 17,000 FEMA trailers after Hurricane Katrina. Because of the threat of the cyclone, Louisiana governor Kathleen Blanco also declared a state of emergency and placed the state's National Guard and other disaster services on stand-by.
Before of the depression's development, several oil and gas companies removed unneeded workers from offshore oil platforms in the northern Gulf of Mexico; the Shell Oil Company evacuated about 700 employees, while Noble Energy removed its workforce of about 300 people from two oil rigs. Exxon Mobil stopped its production by about 1,000 barrels of oil and 55,000 ft³ (1,500 m³). With 27.7% of the daily crude oil production stopped because of the depression, oil prices rose higher after days of increasing levels, and on September 20 reached a record rate of over $84 per barrel.
Together, the wind shear and low-level helicity created moderate convection across central Florida associated with the precursor low pressure system. Late on September 20, a supercell formed near Lake Apopka, and moved quickly northward it created an EF1 tornado near Eustis; the tornado moved around for about 2 miles (3 km) and reached winds of about 100 mph (160 km/h). The tornado destroyed 20 homes, left 30 others severely damaged, and injured one person, and cut power for about 300 people. The depression also created waves of about 5 feet (1.5 m) and rip currents along the west coast of Florida. Outer rainbands began affecting coastal sections of western Florida by about 12 hours before the formation of the depression. Precipitation in the state reached 2.83 inches (71.9 mm) in Crestview. In other places, rainfall totals reached 1.46 inches (37.1 mm) in Albany, Georgia and 0.51 inches (13 mm) in Dothan, Alabama.
Tropical Depression Ten (2007)