At 500 pm HST, the center of hurricane Iselle was located near latitude 16.8 north, longitude 141.6 west. Iselle is moving toward the west-northwest near 13 mph, 20 km/h. This motion is expected to continue during the next 48 hours, with some increase in forward speed as Iselle approaches Hawaii. On the forecast track, the center of Iselle will be approaching the Big Island Thursday afternoon.
Maximum sustained winds are near 100 mph, 155 km/h, with higher gusts. Additional weakening is forecast during the next 48 hours, and Iselle is expected to become a tropical storm by Thursday.
Hurricane force winds extend outward up to 30 miles, 45 km, from the center, and tropical storm force winds extend outward up to 115 miles, 185 km.