More than half a million customers remain without power in Louisiana, while communities in Louisiana and Mississippi are still reeling from Isaac's deluge with multiple areas recovering from dam breaks or controlled releases of dams to prevent a disaster.
According to Entergy, 526,326 people were still in the dark in Louisiana as of 6:30 a.m. EDT Friday.
Meanwhile, with fears of the breaching of the Percy Quin Dam south of McComb, Miss., due to being stressed by Isaac's heavy rainfall, evacuations were forced for Tangipahoa Parish in Louisiana on Thursday.
The Associated Press reports that a controlled breach of the Percy Quin Dam began late Thursday afternoon to prevent a failure of the dam that could send flood waters rushing south into communities such as Kentwood, La.
Dams have also failed in Slidell, La., and a controlled breach was performed in Plaquemines Parish, La.
Animated satellite loop of Isaac moving across the Gulf. Satellite images from NOAA.
Excessive Rainfall Amounts
Vero Beach: 16.60 inches
Royal Palm Beach: 16.29 inches
Boynton Beach: 14.41 inches
Port St. Lucie: 13.04 inches
Aberdeen: 12.41 inches
Palm City: 11.69 inches
New Orleans: 20.08 inches
Reserve: 13.46 inches
Livingston: 13.16 inches
Hammond: 11.93 inches
Terrytown: 10.56 inches
Slidell: 10.40 inches
Kiln: 17.04 inches
Marion: 15.02 inches
Saucier: 12.78 inches
Picayune: 12.17 inches
Diamondhead: 12.04 inches
Long Beach: 11.95 inches
Grand Bay: 11.07 inches
Mobile: 9.67 inches
Wilmer: 8.75 inches
Fairhope: 6.42 inches
Daphne: 5.87 inches
Theodore: 5.12 inches
"Just witnessed water rescue of dozens of people trapped in their homes by flooding in Braithwaite, LA. #isaac," tweeted Tim Wetzel on Wednesday, Aug. 29, 2012.
Storm Surge Heights
Shell Beach: Between 9 and 11 feet
Lake Pontchartrain at New Orleans: Around 6 feet
Grand Isle: Around 5 feet
Pascagoula: Around 4 feet
Mobile Bay: Around 3-5 feet
Severe Weather Spawned by Isaac
On Thursday, Aug. 30, 2012, five tornadoes touched down in Mississippi and Alabama. On Wednesday, Aug. 29, 2012, Isaac spawned seven tornadoes across southern portions of Mississippi and Alabama. As a tropical storm, Isaac had produced two tornadoes in Florida on Monday, Aug. 27, 2012.
Trees were downed and snapped by a possible tornado 1 mile east of Toxey, Ala., on Thursday, Aug. 30, 2012.
A possible tornado destroyed a barn, damaged a second barn and knocked down numerous trees near Increase, Miss., on Thursday, Aug. 30, 2012.
A tornado touched down, destroying a home and injuring two people near Crandall, Miss., on Thursday, Aug. 30, 2012.
A tornado touched down near Meridian, Miss., downing trees and power lines on Thursday, Aug. 30, 2012.
A tornado was spotted on Market Street in Pascagoula, Miss., on Thursday, Aug. 30, 2012.
Power lines and trees were downed and a roof was torn off of a house by a tornado 5 miles southeast of Estothel, Ala., Wednesday night, Aug. 29, 2012.
Sand Hill, Miss.
Debris from a possible tornado was observed about 3 miles southeast of Sand Hill, Miss., late Wednesday, Aug. 29, 2012.
Gulf Park Estates, Miss.
A tornado damaged homes and knocked down trees and power lines late Wednesday, Aug. 29, 2012.
Old Texas, Ala.
Emergency Management reported a possible tornado in northeastern Monroe County, Ala., about 2 miles northeast of Old Texas on Wednesday, Aug. 29, 2012.
Stone County Emergency Management reports that a roof was torn off of a grocery store by a possible tornado on Wednesday, Aug. 29, 2012.
Two tornadoes struck Gulfport, Miss., on Wednesday, Aug. 29, 2012. Structural damage from a possible tornado was reported in the Orange Grove area. Another twister damage several homes in the vicinity of 17th Street and 19th Avenue.
A waterspout moved onshore on Monday, Aug. 27, 2012, damaging six homes 2 miles east-southeast of Tampa, Fla. Fences, trees and roofs were damaged on the properties.
Vero Beach, Fla.
An EF-0 tornado touched down on Monday, Aug. 27, 2012, impacting Vero Palm Estates, Countryside Mobile Home Park and Paraside Park Lifting about 5 miles west of Vero Beach. The tornado produced a discontinuous damage path, including minor damage to 62 structures and major damage to 31 structures.
An unusually strong push of cool air for early September will move southward along the Atlantic Seaboard into the Labor Day weekend, before July-like heat returns by next week.
While lulls in tropical activity in the Atlantic will continue, a rapid end to the hurricane season in September does not always occur during an El Nino.
After heat has dominated headlines this summer, cool air has finally taken control of the northern half of Europe with no signs of departing anytime soon.
While Tropical Storm Kevin will stay well away from Mexico, its moisture will still lead to an increase in showers and thunderstorms from Baja California to the Four Corners region of the United States.
A stormy weather pattern will prevail through September across much of southern South America.
Steering winds could take Ignacio, as a remnant storm, into the southeastern arm of Alaska or British Columbia during the middle days of next week.
Long Island NY (1821)
Long Island hurricane of 1821 struck western Long Island. The storm affected a densely populated area where weather observers were common.
Tampa, FL (1935)
The "Labor Day" hurricane hit Tampa, killing 400 people. Earlier, this intense storm had a center barometric pressure of 26.35 inches - the lowest recorded sea level pressure in the Western Hemisphere.
Denver, CO (1961)
Earliest snow on record; a total of 4.2 inches. A great storm raged at high elevations with 2-3 feet of snow closing roads on Labor Day weekend.