Hurricane Douglas Update for July 25, 2020 11:00 a.m. hst
A Hurricane Warning has been issued for Oahu. A Hurricane Warning means that hurricane conditions are expected within 36 hours.
Hawaii County and Maui County remain under a Tropical Storm Warning (and a Hurricane “watch”). Kauai is only under a tropical storm watch.
5-10 inches of rain are expected on Maui County, Oahu and Kauai, only 2-5 inches on Hawaii Island.
From NWS: On the forecast track, Douglas will be near the main Hawaiian Islands late tonight and will move over parts of the state Sunday and Monday. Maximum sustained winds are near 90 mph with higher gusts. Gradual weakening is expected 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 30 miles from the center and tropical-storm-force winds extend outward up to 110 miles.
HAZARDS AFFECTING LAND
WIND: Hurricane conditions are expected on Oahu on Sunday and Sunday night. 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.