Isaac was dropping some of its power Wednesday morning and have been reduced to a tropical storm as it rained down on La. The slow-moving storm, nevertheless, has caused serious flooding in several areas of lower La and coastal Mississippi.

Based on a 4 p.m. ET National Weather Service advisory, Isaac had top sustained winds of 70 mph, just beneath the hurricane brink of 74 mph, and the surprise was about 50 kilometers west of New Orleans. Thus far, 691,303 area citizens had lost strength because of the storm, and authorities say the failures can continue for days.

City authorities enforced a dusk-to-dawn curfew in New Orleans – as are the majority of the nearby local governments – starting Thursday due to the downed power traces and usually hazardous conditions.

Forecasters are warning there are still life-threatening risks from the storm surge and inland flooding.

La authorities said Thursday they might need to deliberately break a levee in a bombarded region Isaac as created a slow, drenching slog inland.

La Gov. Bobby Jindal said authorities might cut a gap in a levee on the east bank of Plaquemines Parish to alleviate stress on the construction. At an afternoon news conference in Baton Rouge, Jindal said there is no estimate on when that may happen.

The levee officials are considering breaking is on the east bank of the Mississippi River in Plaquemines, reports That levee runs lots of kilometers along the water, and holds it right back for a couple thousand scattered and mainly poorer citizens from the parish.

Plaquemines Parish has also purchased a compulsory evacuation for the west bank of the Mississippi River below Belle Chasse, worried about a surprise surge. The order affects about 3,000 individuals in the region, including a medical home with 112 residents.

Authorities said the evacuation was purchased out of concern that more storm surge from Isaac might be pressed into the place and levees may be overtopped.

Earlier, water powered by the big and strong storm flooded over an 18-mile stretch of one levee in the parish. The levee, one of several across the low-lying coastal area, isn’t the main new defenses built in New Orleans after Katrina.