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Flood Warning Issued for Maui Until 5:45 p.m.: Failure of Kaupakalua Dam is “Imminent”

Satellite imagery (Sandwich RGB – 8 Mar 2021 – 20:41 UTC) PC: NOAA/NWS

Imminent Failure of Kaupakalua Dam:

Update: (2:42 p.m. 3.8.21)

The National Weather Service has issued a Flash Flood Warning in effect until 5:45 p.m. for Maui in the Haʻikū and Paʻuwela area.

At 2:42 p.m., emergency management reported the imminent failure of the Kaupakalua Dam.

Life threatening flooding and significant property damage is expected in areas downstream from the Kaupakalua Dam including Hāna Highway between Haʻikū and Paʻuwela.

The nearest downstream area from the dam is communities in Haʻikū and Paʻuwela, according to the NWS advisory.

As a precaution, the public is asked to stay away from streams, rivers, drainage ditches, and culverts, even if they are currently dry.

Motorists and pedestrians are reminded not to cross fast flowing or rising water in their vehicle, or on foot.

Kaupakalua. File photo by Wendy Osher.

Update: (11:16 a.m. 3.8.21)

The National Weather Service in Honolulu has issued a Flash Flood Warning for the island of Maui until 2:15 p.m. HST.

At 11:15 a.m., radar and automated rain gauges indicated heavy rain falling over windward Haleakalā. The NWS says rain is falling at a rate of 2 to 3 inches per hour. Flash flooding is occurring or expected to begin shortly.

The NWS says some locations that will experience flash flooding include: Keʻanae, Nāhiku, Kīpahulu, Kaupō, Huelo, Kula, Hāna, Makawao, Pukalani, Haʻikū-Paʻuwela, Hāliʻimaile, Paʻuwela, Pāʻia, Haleakalā National Park, Wailua, Kailua and Hāmoa.

Posted: (10:04 a.m. 3.8.21)

The National Weather Service has issued a Flood Advisory for the island of Maui until 1:15 p.m. HST.

At 10:04 a.m., radar indicated heavy rain over windward slopes of Haleakalā and the West Maui Mountains. The NWS says rain was falling at a rate of 1 to 2 inches per hour.

Locations in the advisory include but are not limited to: Kahului, Lahaina, Pukalani, Makawao, Hāliʻimaile, Kula, Pāʻia, Haʻikū-Paʻuwela, Paʻuwela, Puʻunēnē, Huelo, Māʻalaea, Wailuku, Keʻanae, Waiehu, Waikapū, Waiheʻe, Nāhiku, Kīpahulu and Kahakuloa.

As a precaution, the public is advised to stay away from streams, drainage ditches and low-lying areas prone to flooding.

The NWS advises that rainfall and runoff will also cause hazardous driving conditions due to ponding, reduced visibility and poor braking action. Motorists and pedestrians are reminded not to cross fast flowing or rising water in their vehicle, or on foot.

There is also a flood watch that remains in effect through late Tuesday night.

The NWS forecast calls for deep moisture to spread over Maui County from the east and southeast on Monday, then linger into Tuesday, bringing the potential for persistent heavy rain that could lead to flash flooding.

Original source: https://mauinow.com/2021/03/08/flood-advisory-issued-for-maui-until-115-p-m/

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