Weakened storm Barry still poses flood, tornado risks

World News: US warnings of heavy rain, tornadoes from weakening storm Barry

Storm Barry spins north from New Orleans

The hurricane center warned of flooding from Louisiana northward through the lower Mississippi Valley. Even though the region, one of the wettest in the United States, is constantly prone to seasonal flooding from the Mississippi River, heavy rainfall and hurricanes, few resources have been made available to mitigate these dangers.

Barry's centre is moving from northern Louisiana into Arkansas. While it may not have been the worst storm in recent memory - it still left an impact. Storm surges and rainfall have proven to be below most predictions. It submerged about 80 percent of New Orleans after the city's levee system failed, causing about 1,800 deaths and more than $150 billion in damage. The combination of heat and humidity will make this stretch risky, especially for at risk groups, the very young / old and those with health conditions. The 8 to 20 inches of rain originally predicted would have overwhelmed the city's aging drainage system, at the center of which is a system of 120 drainage pumps used to push water out of the low-lying city. He added that the broad river is "the highest it's been for a long time" - just below flood stage. Deluges hit parts of southwest Louisiana late Sunday into Monday morning.

Kern anxious the worst might be yet to come, with the threat of flooding lingering.

But by Sunday, National Guard members were still laying down sand-filled barriers in a bid to contain flooding after "severely high water" overtopped levees in the Plaquemines town of Myrtle Grove, according to parish information officer Jade Duplessis. In March, the US Corps of Engineers opened the Bonnet Carre Spillway to the west of New Orleans, in order to divert water from the MS into Lake Ponchartrain.

The Edison Electric Institute, a trade association, estimated that there were more than 325,000 power outages reported in multiple states over the course of the storm, and that about 33,000 remained without power as of Monday evening. By Friday, the heat index could climb to more than 100 degrees.

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