Tropical Cyclone 08E (Douglas)…is a category 1 storm…on a gradual weakening trend as it approaches the Hawaiian Islands
According to the CPHC, Douglas is moving toward the west-northwest near 16 mph (26 km/h). This motion is expected to continue through the next couple of days. On the forecast track,
Douglas will be near the main Hawaiian Islands late tonight and is expected move near, or over, parts of the state Sunday and Sunday night.
Maximum sustained winds are near 90 mph (150 km/h) with higher gusts. Gradual weakening is expected over the next couple of days. However, Douglas is still forecast to be near hurricane strength when it passes near the islands.
Hurricane-force winds extend outward up to 35 miles (55 km) from the center and tropical-storm-force winds extend outward up to 115 miles (185 km).
HAZARDS AFFECTING LAND
WIND: Hurricane conditions are expected on Oahu on Sunday and Sunday night and are possible across Maui County and the Big Island late tonight and Sunday. Tropical Storm conditions are expected across Hawaii County and Maui County beginning late tonight or Sunday. Tropical Storm conditions are possible across Kauai County late Sunday.
SURF: Large swells generated by Douglas are expected to affect the Hawaiian Islands during the next couple of days, and storm surge of 2 to 4 feet above normal tides is expected near the center of Douglas. The large swells and surge will produce life threatening and potentially destructive surf along exposed shores.
RAINFALL: Heavy rainfall associated with Douglas is expected to affect portions of the main Hawaiian Islands from late tonight through Monday. Total rain accumulations of 5 to 10 inches are possible from Maui County westward to Kauai County, with the greatest amounts in elevated terrain. This rain may result in life-threatening flash flooding and land slides, as well as rapid water level rises on small streams. Douglas is expected to produce 2 to 5 inches of rainfall over the northern half of the Big Island.
Here’s a satellite image of this area
Here’s a link to the Central Pacific Hurricane Center (CPHC)