Isaac made a second technical landfall early this morning, but on the whole is hardly moving. Pressure is remarkably low for a Category 1, at 969mb, and maximum sustained winds are holding at 80 MPH.
Lots of wind with Isaac. Inland storm reports so far include numerous downed trees, severe roof damage, etc., but focus really turns to the potential for substantial flooding.
Louisiana Homeland Security has confirmed that a levee in Plaquemines Parish has overtopped. While overtopping is not the same as a breach, significant, deep flooding in that area is possible, and emergency evacuations are underway in its immediate vicinity despite very rough weather. Sometimes an overtopping results in a complete breach.
The overtopping is occurring from the St. Bernard line all the way to White Ditch, about an 18 mile stretch, according to initial reports.
Many more hours of wind, rain and surge to go. Southeast Louisiana may not yet be even half way through.
Joyce
Kirk
