Tropical Storm Isaias was upgraded to a category one hurricane with 80 mph sustained winds overnight before weakening slightly this morning. Coastal North Carolina remains squarely within the forecast cone.

At 1100 AM EDT (1500 UTC), the center of Hurricane Isaias was located by an Air Force Reserve Hurricane Hunter aircraft and Bahamas radar near latitude 21.7 North, longitude 74.5 West. Isaias is moving toward the northwest near 16 mph (26 km/h), and a general northwestward motion with some decrease in forward speed is expected for the day or so followed by a turn toward the north-northwest.  On the forecast track, the center of Isaias will continue to move near or over the Southeastern Bahamas today.

Isaias is forecast to be near the Central Bahamas tonight, and move near or over the Northwestern Bahamas Saturday and near the east coast of the Florida peninsula Saturday afternoon through Sunday.

Data from the reconnaissance aircraft indicate that maximum sustained winds are near 75 mph (120 km/h) with higher gusts.  Some strengthening is possible today and tonight, and Isaias is expected to remain a hurricane for the next few days.

Hurricane-force winds extend outward up to 35 miles (55 km) from the center and tropical-storm-force winds extend outward up to 205 miles (335 km). Reports from the reconnaissance aircraft indicate that the minimum central pressure is 992 mb (29.30 inches).

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