A couple looks at their flooded street from behind their home's window in La Plata, in Argentina's Buenos Aires province, where at least 35 people were killed by flooding overnight, on April 3, 2013. (Photo by Natacha Pisarenko/Associated Press)

People wade through a flooded street after a rainstorm in Buenos Aires April 2, 2013. Thunderstorms damaged property and vehicles, cut power and caused delays on flights in Buenos Aires and its suburbs. The City's SAME emergency service announced that the death toll has risen to five. (Photo by Enrique Marcarian/Reuters)

A man and dogs cross a flooded street in Belgrano neighborhood, Buenos Aires on April 2, 2013, after heavy reains. A violent storm with torrential rain and powerful wind left five people dead Tuesday in Buenos Aires as it knocked out power, downed trees and damaged homes, officials said. (Photo by Jose Luis Perrino/AFP Photo)

People wade through a flooded streets as the water starts subsiding in La Plata, located 63 km south of Buenos Aires, on April 3, 2013 after a powerful storm that earlier pummeled in the Argentine capital slammed here overnight Tuesday to Wednesday. At least 25 people died in flooding in La Plata as a record 40 cm of rain fell in a two hour period, knocking out phone lines and leaving people in the dark. The deaths raised to 33 the number of people killed this week following record heavy rain in Argentina. (Photo by Daniel Garcia/AFP Photo)

An aerial view of flooded streets is pictured after heavy rains in La Plata April 3, 2013. At least 46 people were killed in Argentina on Wednesday after a torrential downpour battered the eastern city of La Plata and forced some 2,200 people to flee their homes in search of dry ground. (Photo by Reuters/Infobae.com)

Residents stand on the roof of their homes while others paddle through a flooded street after heavy rains flooded a large part of the city, in La Plata April 3, 2013. At least 46 people were killed in Argentina on Wednesday after a torrential downpour battered the eastern city of La Plata and forced some 2,200 people to flee their homes in search of dry ground. (Photo by Reuters/Infobae.com)

Residents sit on a bench at a flooded public square after a rainstorm in Buenos Aires April 2, 2013. Thunderstorms damaged property and vehicles, cut power and caused delays on flights in Buenos Aires and its suburbs. The City's SAME emergency service announced that the death toll has risen to five. (Photo by Enrique Marcarian/Reuters)

Rescue workers in a raft maneuver through a flooded street where cars are submerged along a street in La Plata, in Argentina's Buenos Aires province, Wednesday, April 3, 2013. At least 35 people were killed by flooding overnight in Argentina's Buenos Aires province, the governor said Wednesday, bringing the overall death toll from days of torrential rains to at least 41 and leaving large stretches of the provincial capital under water. (Photo by Natacha Pisarenko/AP Photo)

Submerged cars are seen in a flooded street after a rainstorm in Buenos Aires April 2, 2013. Thunderstorms damaged property and vehicles, cut power and caused delays on flights in Buenos Aires and its suburbs. The City's SAME emergency service announced that the death toll has risen to five. (Photo by Enrique Marcarian/Reuters)

A car lies over a garbage container after heavy rains flooded a large part of the city, in La Plata April 3, 2013. At least 46 people were killed in Argentina on Wednesday after a torrential downpour battered the eastern city of La Plata and forced some 2,200 people to flee their homes in search of dry ground. (Photo by Reuters/Stringer)

Aerial view of a flooded area in the outskirts of La Plata, Argentina, on April 3, 2013. Massive flooding killed 54 people in and around Buenos Aires, Argentine officials said Wednesday, with most of the victims being found after a second day of record rainfall hit the area. At least 46 people died as flood waters hit the nearby city of La Plata about 60 kilometers (40 miles) south of Buenos Aires, following historic rains that swept through the streets, submerging cars as people cowered on rooftops. (Photo by Juan Mabromata/AFP Photo)

Residents carry their belongings through a street after heavy rains flooded a large part of the city, in La Plata April 3, 2013. At least 35 people were killed in Argentina on Wednesday after a torrential downpour battered the eastern city of La Plata and forced some 2,200 people to flee their homes in search of dry ground. (Photo by Enrique Marcarian/Reuters)

A soldier evacuates an elderly woman in a flooded street in La Plata, 63 kms southeast of Buenos Aires on April 3, 2013. At least 25 people died in flooding in the Argentine city of La Plata as torrential rains fell, according to the regional governor. The deaths raised to 33 the number of people killed this week following record heavy rain in Argentina. (Photo by Daniel Garcia/AFP Photo)

A man paddles on a surfboard after heavy rains lashed Buenos Aires on April 2, 2013. A violent storm with torrential rain and powerful wind left five people dead Tuesday in Buenos Aires as it knocked out power, downed trees and damaged homes, officials said. (Photo by Fernando Sturla/AFP Photo/Telam)

A woman starts cleaning her house as the water subsides in La Plata, located 63 km south of Buenos Aires, on April 3, 2013 after a powerful storm that earlier pummeled in the Argentine capital slammed here overnight Tuesday to Wednesday. At least 25 people died in flooding in La Plata as a record 40 cm of rain fell in a two hour period, knocking out phone lines and leaving people in the dark. The deaths raised to 33 the number of people killed this week following record heavy rain in Argentina. (Photo by Daniel Garcia/AFP Photo)

A man pushes his bike through a flooded street in La Plata, in Argentina's Buenos Aires province, Wednesday, April 3, 2013. At least 35 people were killed by flooding overnight in Argentina's Buenos Aires province, the governor said Wednesday, bringing the overall death toll from days of torrential rains to at least 41 and leaving large stretches of the provincial capital under water. (Photo by Natacha Pisarenko/AP Photo)

An aerial view of a boat and a car on a flooded street after heavy rains flooded a large part of the city, is pictured in La Plata April 3, 2013. At least 46 people were killed in Argentina on Wednesday after a torrential downpour battered the eastern city of La Plata and forced some 2,200 people to flee their homes in search of dry ground. (Photo by Reuters/Infobae.com)