Barry has been downgraded to a tropical depression after making landfall west of New Orleans on Saturday as a Category 1 hurricane.
Although Barry did not bring devastating flooding as some forecasters had originally thought similar to Hurricane Katrina in 2005, parts of Louisiana did receive more than 400 mm of rain which swamped the Mississippi River delta.
Emergency responders rescued at least 90 residents but there were no reports of fatalities.
Remnants of Barry have been moving northward with heavy rain across the American South up to the Midwest.
Tropical Storm Barry continues churning in the northern Gulf of Mexico with sustained winds of more than 100 km/h.
The U.S. National Hurricane Center says Barry is expected to make landfall as a hurricane along the coast of Louisiana on Saturday morning.
The city of New Orleans is on alert for heavy rain (up to 500 mm) and flooding along with storm surges although no evacuations have yet been ordered.
This is the first tropical system to impact the United States in 2019.
After landfall, Barry is expected to weaken and head northward through the Mississippi Valley.
Workers board up a hardware store in Pensacola, Florida, USA, 05 Oct 2013 (AP)
Tropical Storm Karen stalled today as it moved toward the American Gulf Coast but forecasters say it will still bring high winds and heavy rain to an area from Louisiana to Florida.
Voluntary evacuations are in place for low-lying areas of Louisiana and the mayor of New Orleans is expecting flooding and power outages.
Karen was poised to be only the second named storm to make landfall in the United States during an unusually quiet hurricane season.
The first was Tropical Storm Andrea which hit Florida in June and its remnants drenched the Maritimes.
Flooding in Laplace, Louisiana, USA from Hurricane Isaac, 30 August 2012 (Times-Picuyne)
Louisiana got the worst of Hurricane Isaac with howling wind and heavy rain but New Orleans was mostly spared on the seventh anniversary of Katrina.
Isaac stalled for several hours before resuming a slow trek inland as a tropical storm.
The slow motion over land meant Isaac was a major soaker dumping up to 500 millimetres of rain in some areas.
Only one death was reported from the storm in the United States but at least 24 were killed in Haiti.
Satellite image of Hurricane Isaac, 28 August 2012 (NOAA/Reuters)
Hurricane Isaac made landfall early tonight along the American Gulf Coast, about 145 km southeast of New Orleans, Louisiana.
Forecasters say a dangerous storm surge is expected from the Category 1 hurricane which is packing winds near 130 km/h.
Many residents along the low-lying coast boarded up their homes Tuesday and moved inland.
Residents of New Orleans were allowed to stay put and were assured that levees reinforced after Hurricane Katrina could easily withstand the storm.
Floodwaters Binghamton, NY, USA, 08 Sept 2011 (Cuomo photo)
Barely two weeks after Hurricane Irene pummelled the American Northeast, the remnants of Tropical Storm Lee have dumped more than 300 mm of rain on the already soaked region.
About 70,000 residents of Wilkes-Barre, Pennsylvania and 20,000 in Binghamton, New York have been forced to flee due to floodwaters.
Tropical Storm Lee lashed the U.S. Gulf Coast earlier this week with heavy rains and tested flood defenses in New Orleans for the first time since Hurricane Katrina in 2005.