While tropical storm warnings are being discontinued for Cuba and the southern Bahamas islands, they are now in effect for much of South Florida. Isaac is still a strong tropcial storm as of 11 AM on Sunday with winds clocked at 65 mph. The projected path of the storm takes it over the Keys and then on into the Gulf of Mexico wfhere it could possibly strengthen to a Category 2 hurricane by the time it makes landfall. The storm could come ashore farther west than thought yesterday - and the landfall projections have been veering from east to west for the past three days - with Morgan City, LA which is west of New Orleans, within the cone of possible sites. Once ashore, bands of heavy rain are possible throughout the southeast with some of the remnant rain arriving in the DC area perhaps late in the week.
NOTE: While much of the US is suffering from drought, Florida is running a healthy surplus of rain ranging up to 13 inches. Thus the projected rainfall from Isaac of from 4 inches to over a foot, will fall on thoroughly saturated ground.