Flood warning, watch cancelled, but threat of showers remains

UPDATE: 3:30 p.m

The flood watch for Maui and Hawaii Island has been canceled.

There are no National Weather Service watches, warnings or advisories remaining.

Forecasters said the potential for locally heavy rain and a few thunderstorms across Hawaii remains throughout the day.

“A cold front will approach the islands and then stall and dissipate on Wednesday,” they said. “This will bring a period of wet trades and windy conditions later in the week and into the weekend, with clouds and showers favoring wind and mauka areas.”

11 in the morning

The flood advisory for Oahu has been canceled.

Radar around 10:30 a.m. showed the heavy rain over the island had eased, the National Weather Service said.

A flash flood watch for Maui and the Big Island remains in effect through this afternoon.

“Deep tropical moisture associated with low pressure will stall over the Kauai Channel today and dissipate tonight,” forecasters said. “This combined with a transient disturbance in the air will maintain the threat of heavy rain, flash flooding and the potential for a few thunderstorms, especially over windward portions of the Big Island and Maui.”

7:50

A flash flood advisory has been issued for Oahu until 11 today.

Radar at 7:45 a.m. showed heavy rain over Oahu with several showers moving in from the south, according to the National Weather Service. Rain was observed falling at up to 2 inches per hour.

Some locations that will experience flooding include Honolulu, Waipio, Mililani, Pearl City, Waikele, Wahiawa, Wheeler Field, Waipahu, Aiea, Kunia, Halawa, Waiahole, Waikane, Schofield Barracks, Salt Lake, Kahaluu, Moanalua, Ahuimanu, Iroquois Point and Ewa Strand.

PRIOR COVERAGE

The National Weather Service has canceled the flash flood warning for Hawaii Island as heavy rainfall has subsided this morning.

Weather officials are advising motorists that Highway 11 at Kawa Flats remains partially closed, with traffic reduced to one lane due to earlier flooding.

A flood will continue for both Maui and the island of Hawaii until 8 p.m. 18 today. The combination of lingering tropical moisture and an approaching cold front brings the potential for additional precipitation and isolated thunderstorms, especially in windy areas.

Residents and visitors are advised to use caution near streams and low-lying areas as flood-prone roads may still experience runoff throughout the day. Motorists are urged to avoid flooded roads and use caution in partially closed areas.

Looking ahead, the National Weather Service predicts that a surface trough and its accompanying plume of tropical moisture will keep parts of the state under the threat of heavy rain and isolated thunderstorms through today. Conditions are expected to improve as the low clears overnight, reducing the risk of significant downpours in most areas.

Starting Wednesday, a cold front will approach the islands, moving partway through the state before stalling and dissipating on Thursday. A new high pressure system building to the north will bring a shift to wetter trade winds and breezy to locally breezy weather likely to last through the weekend.