Isaac Downgraded to Tropical Storm

Isaac’s sustained winds have died back down to 70 mph, downgrading it to tropical-storm status.  But it looks bulkier than ever on today’s MODIS satellite image, with a diameter of about 480 miles.  And it’s been practically parked along the Louisiana coast most of the day, moving to the northwest at only about 6 mph.  Heavy rain is pounding the region and ratcheting up the flooding threat. Some relief could come for the New Orleans area tomorrow as the storm moves inland.

MODIS/Terra visible satellite image of Isaac taken at 12:10 pm Central time on August 29, 2012. Offshore oil and gas platforms and pipelines shown in orange.