A Hurricane Watch has been issued for the Big Island of Hawaii and
for Maui County, including Maui, Lanai, Molokai and Kahoolawe.
At 11:00 AM HST (2100 UTC), the center of Hurricane Douglas was
located near latitude 17.0 North, longitude 143.5 West. Douglas is
moving toward the west-northwest near 18 mph (30 km/h). This
motion is expected to continue for the next two days, followed by
a slight decrease in forward speed and a turn toward the west.
On the forecast track, Douglas will be near the main Hawaiian
Islands on Sunday and Monday.
Maximum sustained winds are near 115 mph (185 km/h) with higher
gusts. Douglas is a category 3 hurricane on the Saffir-Simpson
Hurricane Wind Scale. Gradual and steady weakening is expected to
continue through the weekend. However, Douglas is still forecast to
be near hurricane strength when it nears the islands.
Hurricane-force winds extend outward up to 25 miles (35 km) from the
center and tropical-storm-force winds extend outward up to 115 miles
A Hurricane Watch means that hurricane conditions are possible
within the watch area, in this case within 36 to 48 hours.
Interests elsewhere in the Hawaiian Islands should monitor
the progress of this system
HAZARDS AFFECTING LAND
WIND: Hurricane conditions are possible on the Big Island late
Saturday night and Sunday, with tropical storm conditions possible
by Saturday evening. Hurricane conditions are possible over Maui
county Sunday, with tropical storm conditions possible beginning
late Saturday night.
SURF: Large swells generated by Douglas are expected to begin
affecting portions of the Hawaiian Islands on Saturday. These
swells are likely to cause life-threatening surf and rip current
conditions for a couple of days.
RAINFALL: Heavy rainfall associated with Douglas is expected to
affect portions of the Hawaiian Islands from late Saturday night
through Monday. Total rain accumulations of 6 to 10 inches with
isolated maximum totals of 15 inches are possible, especially
in higher terrain. This rain may result in life-threatening
flash flooding and land slides.