HONOLULU (KHON2) — City officials warned the public to consider seeking shelter indoors due to strong thunderstorms on Sunday.

HNL Info Alerts first stated that strong thunderstorms would impact portions of Oahu until 9:15 p.m. but later extended it to 10 p.m.

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The National Weather Service has issued a flash flood warning until 12:45 a.m. following a flood advisory that was initially sent out.

Impacts of the severe weather were seen throughout the day as City crews responded to flooding causing snarled-up traffic in Honolulu.

At around 10 p.m. traffic came to halt on the H-1 Freeway on the Liliha Street overpass due to flooding. According to the Honolulu Police Department, no one was able to get through but crews have been sent to unclog drains in the area.

Traffic began to move in the area by around 10:20 p.m. but by then a backlog of cars accumulated on the freeway.

Earlier in the day, crews had unclogged drains near the Punahou offramp on the freeway and were sent to clear another drain near the Vineyard off-ramp in the westbound direction.

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Over on the Big Island, the NWS issued a flood advisory that ended at 9 p.m.

For the latest updates from our KHON2 weather team, click here.