UPDATE: 12:30 p.m.

The flash flood warning for Kauai has been canceled.

The NWS said heavy rain over the island has ended, but several roads remain closed due to impacts from the heavy rainfall, mainly across east and southeast portions of Kauai, according to the Kauai Emergency Management Agency.

A flood watch remains in effect for Kauai County through 6 p.m.

9:45 a.m.

The flood advisory has been canceled.

Radar at 9:22 a.m. showed that the heavy rain has diminished, the NWS said.

9:10 a.m.

The thunderstorm watch 1 has been canceled for coastal waters around Kauai.

8:50 a.m.

The flash flood warning for the island of Kauai has been extended until noon today.

Radar at 8:45 a.m. showed significant rainfall has ended. However, the Kauai Emergency Management Agency reported that several roads, especially in the east and southeast areas of the island, remain closed due to flooding, landslides and sinkholes, the NWS said.

7:20 a.m.

A flood advisory is in effect for Oahu through 9:45 a.m. today.

Radar at 6:43 a.m. showed heavy rain over the northwestern half of Oahu with rain falling at rates of 1 to 2 inches per hour over Turtle Bay and Kahuku, according to the National Weather Service.

Rainfall will continue to move over Oahu from the southwest over the next several hours, the NWS said.

Some locations that will experience flooding include Honolulu, Waipio, Wahiawa, Wheeler Field, Mililani, Schofield Barracks, Kunia, Waikele, Waipahu, Pearl City, Waialua, Haleiwa, Aiea, Makakilo, Nanakuli, Waianae, Waikane, Halawa, Waiahole and Kapolei.

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A flash flood warning is in effect for the island of Kauai this morning while a severe thunderstorm watch is in effect for surrounding waters. Additionally, all Kauai public schools will be closed today.

Radar at 5:49 a.m. showed that rainfall has mostly moved southeast of Kauai, however, isolated areas of rain will move over the island from the south, according to the National Weather Service. Runoff levels are high as flooding impacts continue.

Multiple roads in the Koloa and Wailua areas are closed, and the Kuhio Highway also remains closed near the Hanalei River bridge, according to the Kauai Emergency Management Agency.

The state Department of Education posted an alert on the website that all Kauai public schools will be closed today due to flash flooding conditions.

The flash flood warning is in effect through 9 a.m.

An earlier flash flood watch for Kauai County remains in effect through late this afternoon.

Residents and visitors should expect flooding in drainages, streams, rivers, roads, properties and other low-lying areas, the NWS said in a bulletin. Landslides are possible in steep terrain.

People are advised to avoid streams, rivers, drainage ditches and culverts, even if they are currently dry. And motorists should not cross fast-flowing or rising water, or on foot.

Meanwhile, a severe thunderstorm watch 1 is in effect for the windward and leeward waters of Kauai and Kauai Channel.

“A severe thunderstorm watch means conditions are favorable for severe thunderstorms in and close to the watch area,” the NWS said in an alert. “Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings.”

Severe thunderstorms produce damaging winds of 58 mph or higher or destructive hail the size of quarters or larger.

The severe thunderstorm watch is in effect through 10 a.m.