UPDATE: 8:50 p.m.

The flood advisory for the west side of the Big Island has been canceled.

The state remains under a flash flood watch until 6 p.m. Monday

7:05 p.m.

A flood advisory for a section of the west side of the Big Island is in effect until 9:15 p.m.

“At 6:16 p.m., radar indicated heavy rain over the Waikoloa Village area of the Big Island. Rain was falling at a rate of up to 3 inches per hour,” the advisory said.

The advisory covers Kailua-Kona, Waikoloa Village, Puuanahulu, Kalaoa, Holualoa, Honalo, Pohakuloa Training Area, Waikoloa Beach, Mauna Lani and Kona International Airport.

Separately, Hawaii County officials said Bayfront Highway in Hilo is closed until Monday morning due to high surf.

On Maui, the county Department of Parks and Recreation said Kanaha Beach Park will remain closed on Monday while crews remove downed trees and debris from recent heavy rains and flooding. DPR personnel will also assess conditions at Baldwin Beach Park early Monday morning to determine whether it will be reopened.

4:25 p.m.

The flood advisory for parts of the Big Island has been canceled.

4:10 p.m.

The National Weather Service has extended the statewide flash flood watch through 6 p.m. Monday.

The watch has been in effect for more than a week.

“The threat of widespread heavy rain is diminishing, but localized heavy rain is still likely through the day on Monday. Areas that have already received heavy rain will be most vulnerable,” the latest update says.

The weather service has also issued a flood advisory for the Big Island until 5:30 p.m.

The advisory covers Hilo, Hawaiian Paradise Park, Keaau, Mountain View, Hawaiian Acres, Orchidland Estates, Glenwood, Papaikou, Kurtistown, Wainaku, Fern Acres, Paukaa, Eden Roc, Ainaloa and Hawaiian Beaches.

An earlier advisory for parts of Oahu has expired.

3:35 p.m.

Kauai County officials provided a number of updates for residents affected by the recent flooding.

A new page has been created on the county’s website to provide ongoing information and resources. Officials will share up-to-date information on current Kuhio Highway closures and repairs, damage assessments, refuse services, postal services, power and water utility services, COVID-19 vaccines and other health-related resources.

Kauai residents who have suffered home damage due to the March flooding are asked to fill out a form online (look for the “March 2021 Rain Damage/Flood Reporting” link) to help gather data to determine whether or not federal aid will be made available. Call (808) 241-1800 for more information.

Hawai‘i Life Flight and American Medical Response have placed a medical helicopter into service at Līhue Airport. The helicopter will be used for all patient transports north of the Hanalei Hill landslide and will provide 24-hour emergency response services.

Also, both lanes of Kuhio Highway at the Hanalei Hill approaching Hanalei Bridge will remain closed as officials continue to assess damage, conduct debris removal and stabilize the slopes. The state Department of Transportation is targeting early next week to establish single lane emergency access through the area, weather permitting.

Other current road closures include:

>> Kuhio Highway, between Kolopua Apartments and Hanalei Plantation Road, remains closed. This is the road above the Hanalei Hill site. DOT officials have installed systems to monitor any movement in the road.

>> One lane of Kuhio Highway at mile marker 4.5 near Waikoko is open to alternating traffic.

Kauai’s Department of Water has issued a water conservation notice for customers from Wainiha to Ha’ena, until further notice, due to a power outage affecting the system’s well site. Customers are advised to limit water use to essential needs only in order to avoid a full water service outage. For updates and more information about water conservation measures, click here.

The Federal Aviation Administration has issued a Temporary Flight Restriction from Princeville to Ke’e Beach, particularly restricting all aircraft and UAS (drones).

Additional updates will be posted at kauai.gov and on Facebook.

1:10 p.m.

The National Weather Service in Honolulu has issued a flood advisory for the island of Oahu until 4:15 p.m.

At 1:05 p.m., radar indicated heavy rain over central Oahu falling at a rate of 1 1/2 to 2 inches per hour. Hazardous driving conditions may occur due to ponding and reduced visibility.

Locations affected by the advisory include, but are not limited to, Mililani, Waikane, Waiahole, Wahiawa, Pearl City, Aiea, Waikele, Kahaluu, Halawa, Ahuimanu, Waipahu, Kunia, Kaneohe,

Maunawili, Kahana Valley State Park, Whitmore Village, Waimalu, Helemano Housing and Heeia.

The advisory may be extended if flooding persists.

11 a.m.

Multiple park closures remain in effect on Maui today.

According to the Maui County Department of Parks and Recreation, Kanaha Beach Park remains closed due to fallen trees, while Baldwin Beach Park remains flooded.

In addition, a section of Piilani Highway in the vicinity of Kaupo on the southern flank of Haleakala remains closed in both directions at mile marker 29.4 due to washout conditions, and the upper portion of Awalau Road in Haiku remains closed.

The state Department of Transportation also said one makai lane of Hana Highway near Twin Falls has been closed due to a report of culvert damage in the area.

PREVIOUS COVERAGE

A week of heavy rain storms throughout the state has saturated the ground in many areas and raised stream levels, increasing the chances of more flooding today, forecasters say.

The National Weather Service in Honolulu extended the week-long flash flood watch through this afternoon for all Hawaiian islands.

Forecasters said “an upper level disturbance over the region and saturated ground conditions will maintain the potential for flash flooding through this afternoon.”

They said significant flooding may occur due to the overflow of streams and drainages, and they warned of possible road closures and landslide.

The weakening cold front remains a threat before a slow drying trend begins and the tradewinds return Tuesday, gradually increasing through the end of the week.

Moderate to breezy trade winds are forecast for Niihau and Kauai today as tradewinds decrease over Oahu and the eastern islands through Monday.

Tradewinds will slowly strengthen from Tuesday through Friday becoming breezy by the end of the week, forecasters said this morning.

The weather service has also issued:

>> A winter weather advisory for the summits of Mauna Kea and Mauna Loa above 11,000 feet until 6 p.m. today. Additional snow of up to 2 inches and wind gusts as high as 65 mph are expected.

>> A high surf advisory through Monday for north and east shores of Niihau, Kauai, Oahu, Molokai and the Big Island, and for north, east and west shores of Maui. Surf of 12 to 18 feet is expected along the north shores of Niihau, Kauai, Oahu, Molokai, Maui and the Big Island; waves of 9 to 14 feet are predicted for east shores of Niihau, Kauai, Oahu, Maui, Molokai and the Big Island; and 9 to 12 feet waves are expected along Maui’s west shores.

Forecasters also warned that the swell “may produce surges within north-facing harbors, including Hilo Harbor and Kahului Harbor, along with breaking waves near harbor entrances. Mariners should exercise caution when entering or leaving port and when mooring or launching vessels.”

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