"Not only did it did it not make landfall, it skirted by the islands", National Weather Service meteorologist Chevy Chevalier said.
Rainfall from the storm can be anywhere from 13 to 38 centimetres.
"I think this was a good type of test for the community also to see where they are in preparation", he said.
Gradual weakening is forecast during the next 48 hours, but Douglas is expected to remain a hurricane as it moves near the islands tonight. They further noted that most forecast models showed that Douglas will move directly toward the island of Hawaii.
The center of Hurricane Douglas, which Ballard called a "pretty nasty hurricane", appears to have passed within 45 miles to the north of Hana, Maui.
The state's major military installations are on Oahu, while the Navy's Barking Sands Pacific Missile Range Facility is on Kauai.
This morning there is a rare Hurricane Warning for parts of Hawaii as Hurricane Douglas passes dangerously close to the state, bringing gusty winds, flooding rain and life threatening surf. Kauai and Maui were also placed under warning status Sunday, while a hurricane watch was cancelled for the Big Island.
The City and County of Honolulu have already opened their ballot drop boxes to the public while other island counties are using the August 3 date cited in state law, West Hawaii Today reported Sunday.
The weather service said the storm is expected to gradually weaken over the weekend, but still be near hurricane strength when it nears the islands. "We prepare for the worst and hope for the best", Governor David Ige said during a news conference.
State health department officials spoke to the 625 residents who were now in isolation or quarantine as of Friday due to a coronavirus diagnosis or because they have been in contact with someone who tested positive for the virus. Officials urged residents to shelter in place or, as last resort, to take refuge at shelters.
"That gives a sigh of relief", said Honolulu Mayor Kirk Caldwell. On Thursday and Friday, the state reported 55 and 60 new confirmed cases, both of which were record highs.
People will need to use face coverings to be confessed and will need to use them unless they are consuming, drinking, or sleeping.
As of late Sunday afternoon, the storm was about 75 miles east of Honolulu.
Donald Trump issued an emergency declaration for Hawaii, directing federal assistance to supplement state and local response efforts.
Hawaiian Airlines cancelled all Sunday flights between Hawaii and mainland USA, as well as between the islands.
Honolulu resident Scott Silva had supplies in hand.
"With any of the high-traffic areas in the shelter, they'll be doing extra cleaning to make sure that you know there's no contamination", she stated. "Not expecting too much trouble from this one".
Hurricane Hanna slammed into South Texas on Saturday, making landfall twice as a Category 1 storm.
At 4:00 a.m. CT, the storm's top sustained winds were around 95 km/h, the centre said.
Hurricane Douglas has maintained maximum sustained winds near 85 miles per hour with higher gusts, and is forecast to pass near Oʻahu and Kauaʻi tonight.