Hurricane Douglas Moves Away From Hawaiian Islands

UPDATE: 5 AM HST Monday, July 27, 2020

Hurricane Douglas is moving away from the Hawaiian Islands and a hurricane warning is issued for portions of the Papahanaumokukea Marine National Monument.

CHANGES WITH THIS ADVISORY

The Tropical Storm Warning for portions of the Papahanaumokuakea Marine National Monument from Nihoa to French Frigate Shoals has been upgraded to a Hurricane Warning.

A Hurricane Watch has been issued for portions of the Papahanaumokuakea Marine National Monument from French Frigate Shoals to Maro Reef.

A Tropical Storm Watch has been issued for portions of the Papahanaumokuakea Marine National Monument from Maro Reef to Lisianski.

A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area, in this case within the next 36 hours.

A Hurricane Watch means that hurricane conditions are possible somewhere within the warning area, in this case within the next 24 to 36 hours.

A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case within the next 12 to 24 hours.

A Tropical Storm Watch means that tropical storm conditions are possible somewhere within the watch area, in this case within the next to 36 to 48 hours.

As of 5 a.m., the center of Hurricane Douglas was located near latitude 22.9 North, longitude 160.4 West. Douglas is moving toward the west-northwest near 17 mph (28 km/h), and this general motion will continue the next couple of days, with a slight turn toward the west.

Maximum sustained winds are near 90 mph (150 km/h) with higher gusts. Weakening is forecast during the next couple of days.

Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 105 miles (165 km). The estimated minimum central pressure is 987 mb (29.15 inches).

HAZARDS AFFECTING LAND

WIND: Hurricane-force winds are expected over portions of the Papahanaumokuakea Marine National Monument from Nihoa to French Frigate Shoals later today and tonight. Tropical storm conditions are expected from French Frigate Shoals to Maro Reef Tuesday and Tuesday night, with hurricane conditions possible. Tropical storm conditions are possible from Maro Reef to Lisianski Tuesday night and Wednesday.

SURF: Large swells generated by Douglas will impact a large swath of the Papahanaumokuakea Marine National Monument the next couple of days. These swells will produce large breaking waves that could inundate some of the lower-lying atolls.

RAINFALL: Rainfall associated with Douglas is expected to affect portions of the main Hawaiian Islands today. Total rain accumulations of 3 to 6 inches with locally higher amounts are possible, with the greatest rainfall in elevated terrain on Kauai. This rain may result in flash flooding and landslides, as well as rapid water level rises on small streams. Heavy rainfall will also impact portions of the Papahanaumokuakea Marine National Monument.