UPDATE: Large Swells From Olivia to Begin Monday

Sept. 9, 2018, 11 a.m.: Large Swells From Olivia to Begin Monday

The National Weather Service Central Pacific Hurricane Center in Honolulu issued an update on Hurricane Olivia on Sunday, Sept. 9, 2018, at 11 a.m.

The center of Hurricane Olivia was located near latitude 21.7 north, longitude 145.1 west, about 660 miles east of Hilo.

Olivia is moving toward the west near 14 mph and this motion is expected to continue for the next 24 hours or so with some slowing in forward speed.

A WSW motion is expected to begin Monday night or Tuesday. On the forecast track, Olivia will be
approaching the main Hawaiian Islands later Tuesday and Tuesday night.

Maximum sustained winds are near 75 mph with higher gusts. Little change in strength is forecast during the next 36 hours, with gradual weakening expected afterward.

Hurricane-force winds extend outward up to 30 miles from the center and tropical-storm-force winds extend outward up to 125 miles.

SURF: Large swells generated by Olivia are expected to reach the main Hawaiian Islands starting Monday. Surf will continue to build as Olivia approaches, and may become damaging on some exposed east-facing shores Tuesday or Wednesday.

10:14 a.m.: Olivia Moving Rapidly Toward Hawai‘i

The NWS Central Pacific Hurricane Center inHonolulu issued an update on Hurricane Olivia on Sunday, Sept. 9, 2018.

Category 1 Hurricane Olivia is moving west toward Hawai‘i at at rapid rate.

At 5 a.m.,, the center of Hurricane Olivia was located near latitude 21.8 north, longitude 143.9 west, about 735 miles ENE of Hilo.

Olivia is moving toward the west near 16 mph.

Olivia is expected to continue moving westward, but at a slightly slower forward speed through early Monday.

A gradual turn toward the WSW is expected starting late Monday. This track could bring the outer
circulation of Olivia close to the Hawaiian Islands starting Tuesday night.

Maximum sustained winds are near 75 mph (120 km/h) with higher gusts. Little change in strength is forecast during the next couple of days, and Olivia is expected to remain a hurricane through Monday night. Some gradual weakening is possible on Tuesday, but Olivia will likely remain a threat to the Hawaiian Islands early this week.

Hurricane-force winds extend outward up to 30 miles from the center and tropical-storm-force winds extend outward up to 120 miles.

The estimated minimum central pressure is 29.21 inches.

All interests in Hawai‘i should closely monitor the progress of Olivia, and use this time to enact your hurricane action plan.

Tropical Storm or Hurricane Watches may be required for portions of the Hawaiian Islands later today or tonight.