UPDATE: 7:15 p.m.

A flood advisory for the Big Island has expired this evening.

5 p.m.

A flood advisory is in effect for the Big Island until 7:30 tonight.

Radar this afternoon indicated a thunderstorm near Pahala with rainfall rates around 1 inch per hour.

Locations in the advisory include but are not limited to Punaluu Beach, Kawa Flats, Pahala, Naalehu, Wood Valley, Hawaiian Ocean View, Hawaii Volcanoes National Park, Waiohinu, Discovery Harbour and Hawaii Volcanoes Park Kahuku Unit.

12:25 p.m.

The flood advisory for Oahu has been canceled.

Wet conditions remain along the mauka areas of Windward Oahu, but have eased in intensity since earlier today, according to the National Weather Service.

9:15 a.m.

The flood advisory for Oahu has been extended through 12:30 p.m.

Radar at 9:15 a.m. showed moderate to heavy rainfall moving over the mauka areas of Windward Oahu dumping rain at rates up to 1 to 2 inches per hour between Kaneohe to Hauula, the National Weather Service said.

More rainfall will continue to move onshore from the northeast over the next several hours, forecasters said.

Locations in the advisory include, but are not limited to, Waikane, Waiahole, Kaaawa, Kahaluu, Punaluu, Ahuimanu, Mililani, Pearl City, Wahiawa, Hauula, Aiea, Halawa, Wheeler Field, Moanalua, Laie, Salt Lake, Kaneohe, Kalihi, Kaneohe Marine Base and Kahuku.

The advisory may need to be extended if flooding persists.

Tuesday, 6:20 a.m.

A flood advisory has been posted for Oahu through 9:30 a.m. today.

Radar and rain gauges at 6:19 a.m. showed heavy rain falling over the Koolau range at rates up to 1 inch per hour, the National Weather Service said. Some pockets of heavier showers with rain falling at up to 2 inches per hour are also moving toward Windward Oahu.

Locations in the advisory include, but are not limited to, Waikane, Waiahole, Kaaawa, Kahaluu, Punaluu, Ahuimanu, Mililani, Pearl City, Wahiawa, Hauula, Aiea, Halawa, Wheeler Field, Moanalua, Laie, Salt Lake, Kaneohe, Kalihi, Kaneohe Marine Base and Kahuku.

The advisory may need to be extended if flooding persists.

Monday, 6:20 p.m.

The flash flood warning for Oahu has been canceled.

Floodwaters have receded and the heavy rain has ended according to the National Weather Service. Flooding is no longer expected to pose a threat.

5:30 p.m.

A flash flood warning for Oahu has been extended again until 6:30 p.m.

Flash flooding is already occurring as of 5:24 p.m. according to the National Weather Service. Emergency officials estimate there is roughly 1 foot of water over the road in Waikane with two cars stalled at 5:07 p.m.

One Eastbound lane is flooded and currently closed on Farrington Highway in Waianae near Waianae City Hall.

Kapaa Quarry Road is closed in both directions, from Kalanianaole Hwy to Mokapu Saddle Road, due to the heavy rain.

The NWS has also issued a flash flood advisory for Hawaii island until 8:15 p.m.

A flash flood watch has been canceled for the entire state.

2:30 p.m.

A flash flood warning for Oahu has been extended until 5:30 p.m.

At 2:28 p.m., radar indicated heavy rain over Central and Windward Oahu falling at a rate of 2 to 3 inches per hour, according to the National Weather Service.

The heaviest rain is over Central Oahu with runoff North toward Waialua and Haleiwa and South toward Pearl Harbor as well as along the Windward side from Kaneohe to Kahuku.

A flash flood advisory for Maui has been canceled.

1:50 p.m.

A flash flood warning has been posted for Oahu through 5 p.m.

Radar at 1:50 p.m. showed heavy rain over Central Oahu falling at rates of up to 2 to 4 inches per hour, the National Weather Service said. Flash flooding is occurring or expected to begin shortly.

PREVIOUS COVERAGE

Flood advisories have been posted for the islands of Oahu and Maui due to heavy rain.

Around 1:30 p.m., radar showed rain falling at rates up to 1 to 3 inches per hour over Oahu and the Pukalani and Makawao areas of Maui, according to the National Weather Service. The advisory is in effect through 4:30 p.m.

Locations in the advisory for Oahu include, but are not limited to, Honolulu, Mililani, Pearl City, Waikele, Wahiawa, Wheeler Field, Waipahu, Kunia, Aiea, Halawa, Schofield Barracks, Waiahole, Waikane, Salt Lake, Kahaluu, Moanalua, Ahuimanu, Iroquois Point, Ewa Beach and Kaaawa.

Locations in the advisory for Maui include, but are not limited to, Makawao, Haiku, Haliimaile, Pukalani, Pauwela, Huelo, Paia, Kula, Puunene, Kailua and Hookipa Beach Park.

The heaviest rain on Oahu is currently over Central Oahu near Schofield Barracks, but short-lived, locally heavy showers have been popping up all over the island, weather officials said.

A flash flood watch for all islands, except the Big Island, remains in effect through this afternoon.