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Flossie’s departure leaves Hawaii with hot, muggy weather

  • NATIONAL WEATHER SERVICE

    A composite satellite image taken at 10:30 a.m.today shows areas of moisture over Hawaii.

UPDATE: 9:45 p.m.

The flood advisory for parts of Hawaii island has expired. But locally heavy showers are possible across the state tonight due to a surface trough across the island chain, the National Weather Service said.

Light to moderate trade winds will return to Maui and Hawaii island on Wednesday. A muggy air mass will remain near Kauai and Oahu for the next few days due to a trough. Light winds may lead to bouts of heavy showers, especially in the afternoon and evening.

7:05 p.m.

The flood advisory for parts of Hawaii island has been extended until 10:15 p.m., according to the National Weather Service.

“At 6:53 p.m., radar indicated continued heavy rainfall across north Kona and south Kohala district,” forecasters said. “Rain was falling at a rate of 1 to 2 inches per hour. This rainfall is expected to diminish later tonight.”

The advisory covers Kailua-Kona, Waipio Valley, Hawi, Honaunau, Kamuela, Kawaihae, Kahaluu-Keauhou, Kealakekua, Kapaau, Puako, Captain Cook and Puuanahulu.

6:15 p.m.

The former tropical cyclone Flossie fizzled but the storm’s remnants continues to dump some rain on the west side of Hawaii island today.

Parts of the Big Island remain under a flood advisory until 7:15 p.m., but the National Weather Service expects the rain to dissipate tonight.

The advisory covers Kailua-Kona, Honaunau, Kamuela, Kawaihae, Kahaluu-Keauhou, Kealakekua, Kapaau, Puako, Captain Cook and Puuanahulu.

Flossie passed safely north of the islands Monday and today as it fell apart.

Forecasters said light to moderate trade winds will return to Maui and the Big Island on Wednesday.

The islands can expect the hot, muggy weather to continue for the next couple of days, they said.

“Light winds will continue to allow a few pop-up downpours to develop, especially in the afternoon and evening. By the weekend, light to moderate trade winds are expected statewide, with just a few showers expected,” weather service forecasters said.

1:20 p.m.

The National Weather Service has extended the flood advisory for Hawaii island through 4:15 p.m. today.

At 1:10 p.m., radar indicated heavy rain over the south Kohala district. Rain was falling at a rate of 1 to 2 inches per hour,” the National Weather Service said. Additional heavy rain is possible over the north Kohala and north and south Kona districts through this afternoon.

Locations in the advisory include, but are not limited to, Kailua-Kona, Waipio Valley, Hawi, Honaunau, Kamuela, Kawaihae, Kahaluu-Keauhou, Kealakekua, Kapaau, Puako, Captain Cook and Puuanahulu.

11:30 a.m.

The National Weather Service in Honolulu has issued a flood advisory Hawaii island until 2:15 p.m. today.

“At 11:14 a.m., radar indicated nearly stationary heavy showers near Upolu Point and Pololu Valley. Rain was falling at a rate of 1 to 2 inches per hour,” the National Weather Service said.

The advisory covers Pololu Valley, Kohala Ranch, Hawi, and Halaula.

The Big Island advisory is in addition to an earlier flood advisory for Maui until 12:15 p.m., and a flash flood watch for Maui and the Big Island through this afternoon.

PREVIOUS COVERAGE:

Post-tropical cyclone Flossie leaves the Hawaiian isles with a parting gift — a trailing plume of deep, tropical moisture resulting in wet and humid conditions — as she passes to the north.

The wet and humid pattern is expected to last across the state through midweek due to light winds and the plume of moisture, according to National Weather Service officials.

A few thunderstorms also remain possible due to an upper trough over the region.

The threat of heavy rainfall remains, and the following are in effect:

>> A flood advisory for the island of Maui, through 12:15 p.m. today. Locations in the advisory include, but are not limited to, Kapalua, Puunene, Waikapu, Lahaina, Napili and Kaanapali.

>> A flash flood watch through this afternoon for Maui and the Big Island.

>> A high surf advisory for the east-facing shores of Kauai, Oahu, Molokai, Maui and the Big Island, through 6 p.m. today as a short-period easterly swell from post-tropical cyclone Flossie moves through the Hawaiian waters.

The heat index, a reflection of what it feels like when temperature and humidity are combined, is expected to reach 93 degrees in Honolulu this afternoon, and 94 degrees Wednesday afternoon. In Kahului, the heat index is expected to reach 92 degrees this afternoon, and 94 degrees, as well, on Wednesday.

Several record temperatures have been set over the weekend.

On Sunday, a record high of 89 degrees Fahrenheit in Hilo tied with the old record set in 1986. On Saturday, a record high of 92 was set in Honolulu, breaking the old record of 91 in 2015. A record high of 89 was set in Lihue, breaking the record of 88 set in 2017.

Relief is expected later in the week and into the upcoming weekend, forecasters said, with the return of a more stable and drier pattern, and light to moderate trade winds.

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