Maui Flood Warning until 1 a.m., Saturday, Jan. 28

Update: 9:36 p.m., Friday, Jan.27, 2023

The National Weather Service has extended the Flash Flood Warning for the island of Maui until 1 a.m. on Saturday, Jan. 28, 2023.

At 9:36 p.m., radar showed heavy rain over the slopes of Haleakalā, falling at a rate of 1 to 2 inches per hour with locally heavier rain up to 3 inches per hour. “Water levels at Honopou Stream and Waikamoi Stream have risen significantly, and other streams have increased as well. Maui Emergency Management Agency reports that several roads remain closed, including the Piʻilani Highway near Nuʻu, South Kīhei Road near Kūlanihākoʻi Gulch, and Pūlehu Road above the landfill.

Update: 8:52 p.m., Friday, Jan. 27, 2023

At 8:51 p.m., radar showed heavy rain continuing to fall over the slopes of Haleakalā. Rain was falling at a rate of 1 to 2 inches per hour, according to the Maui Emergency Management Agency. MEMA reports that multiple roads will remain closed overnight due to flooding, including the Piʻilani Highway near Nuʻu, South Kīhei Road near Kūlanihākoʻi Gulch, and Pūlehu Road above the Central Maui Landfill. Radar indicates that additional rainfall is possible, according to MEMA.

Update: 6:28 p.m. Friday, Jan. 27, 2023

The National Weather Service in Honolulu has extended the Flash Flood Warning for the island of Maui until 10 p.m.

At 6:28 p.m., radar showed heavy rain over the slopes of Haleakalā. The NWS reports that rain was falling at a rate of 1 to 2 inches per hour. Flash flooding is ongoing.

The Honopou Stream in East Maui and other streams remain elevated at last report.

Although rainfall has eased over other parts of Maui, runoff remains high, according to the NWS.

Some locations that will experience flash flooding include: Kahului, Kīhei, Kula, Kēōkea, Pukalani, Makawao, Hāliʻimaile, Keʻanae, Huelo, Kīpahulu, Haʻikū-Paʻuwela, Kaupō, Nāhiku, ʻUlupalakua, Wailea, Paʻuwela, Pāʻia, Mākena, Puʻunēnē and Māʻalaea.

Update: 4:45 p.m., Friday, Jan. 27, 2023

At 4:45 p.m., radar showed heavy rain continuing over the windward slopes of Haleakalā. The highest rain rates were 1 to 2 inches from Keʻanae to Hāna. Although rainfall has eased over other parts of Maui, runoff remains high. The Maui Emergency Management Agency reported that Piʻilani Highway remains closed near Nuʻu, South Kīhei Road remains closed near Kūlanihākoʻi Gulch, and Pūlehu Road remains closed above the landfill.

Update: 3:45 p.m. Friday Jan. 27, 2023

The National Weather Service in Honolulu has extended the Flash Flood Warning for the island of Maui until 7 p.m.

At 3:45 p..m., radar indicated heavy rain continuing to affect the slopes of Haleakalā. The most intense rainfall recently has been over the Hāna area with rain rates of 1 to 3 inches per hour. The Maui Emergency Management Agency reported that Pūlehu Road has been closed above the landfill. South Kīhei Road remains closed near Kūlanihākoʻi Gulch and Piʻilani Highway also remains closed near Nuʻu. Heavy rainfall will continue to move over the slopes of Haleakalā into the evening hours.

South Kīhei Road closed at Kūlanihākoʻi Gulch;
Piʻilani Highway closed at Nuʻu
Update: 2:10 p.m., Jan. 27, 2023

Maui Emergency Management reports that as of 2:09 p.m., tat South Kīhei Road is closed at Kūlanihākoʻi Gulch, and Piʻilani Highway is closed near Nuʻu in East Maui.

MEMA reports that several stream gages along the windward side of Haleakalā indicated rapid rises in water levels.

“Radar showed rainfall continuing to move over the slopes of Haleakalā from the east, with peak rain rates of 1 to 2 inches per hour. This heavy rainfall activity should continue into the evening hours,” according to a MEMA update.

Maui Flood Warning until 4 p.m.
Update: 12:59 p.m., Jan. 27, 2023

The National Weather Service has issued a Flash Flood Warning for the island of Maui until 4 p.m. on Friday, Jan. 27, 2023.

At 12:59 p.m., radar and rain gages indicated heavy rain falling along the slopes of Haleakalā.

According to the forecast update:

“Peak rain rates of 1 to 3 inches have been occurring along the windward slopes from Haʻikū to Hāna. Heavy rainfall has also been moving over Upcountry Maui. This rainfall is expected to produce flooding is the normally dry gulches in the Kīhei and Wailea areas. Additional rainfall is expected to move over the island from the east through the afternoon.”

Maui Flood Advisory until 1:30 p.m.
Posted: 10:32 a.m., Jan. 27, 2023

The National Weather Service has issued a Flood Advisory for Maui until 1:30 p.m. on Friday, Jan. 27, 2023.

At 10:26 a.m., radar and automated rain gauges showed heavy rain spreading westward into the Kīhei area of leeward Maui. Rainfall also continues over the windward slopes of Haleakalā and portions of Upcountry, Maui with rates of 1 to 2 inches per hour.

“More rainfall is expected to move over Maui from the northeast over the next several hours,” according to the latest NWS update.

Some locations that will experience flooding include: Kahului, Kīhei, Kula, Kēōkea, Pukalani, Makawao, Hāliʻimaile, Keʻanae, Huelo, Kīpahulu, Haʻikū-Paʻuwela, Kaupō, Nāhiku, ʻUlupalakua, Wailea, Paʻuwela, Pāʻia, Mākena, Puʻunēnē and Māʻalaea.

As a precaution, the public is reminded to stay away from streams, drainage ditches and low-lying areas prone to flooding. A Flood Watch is also in effect for Maui County through Sunday afternoon.

This advisory replaces the previous advisory that was in effect for the island of Maui. The advisory may need to be extended beyond 1:30 p.m. if flooding persists.

According to the NWS, a developing surface trough will result in cloud and shower development over Maui County for the next couple of days. “The bulk of the rainfall is expected to fall over windward slopes and coasts. The potential for flash flooding will likely extend to other islands over the weekend, requiring an expansion of the flood watch,” according to the NWS.