Maui Flood Warning to 6 p.m.; Moloka‘i Flood Warning Until 3 p.m.

PC: NOAA/NWS satellite imagery 1.18.21 11:13 a.m.

The National Weather Service in Honolulu has extended a Flood Advisory for the island of Maui until 4:45 p.m. on Monday, Jan. 18, 2021. The NWS issued a Flood Warning for Molokaʻi until 3 p.m., replacing an Advisory that was issued earlier in the day.

At 1:43 p.m., radar indicated heavy rain over portions of central and east Maui, mainly near Wailuku, Kahului, Haʻikū, and Keʻanae. In localized areas, rain was falling at a rate of 1 to 2 inches per hour. This heavy rain is falling on already saturated areas, leading to increased runoff.

At 11:50 a.m., radar indicated heavy rain over portions of northern Molokaʻi from south of Kalaupapa to south of Hālawa Valley. Rain was falling at a rate of 1 to 2 inches per hour. Additional heavy rain was developing over far western Molokaʻi near Kepuhi. Conditions appear favorable for additional rain, at times heavy, to develop over Molokaʻi over the next few hours.

A Flash Flood Watch is also in effect for Maui until 6 p.m. on Tuesday, Jan. 19, 2021.

The public is advised to stay away from streams, drainage ditches and low-lying areas prone to flooding.

Rainfall and runoff will also cause hazardous driving conditions due to ponding, reduced visibility and poor braking action.


On Maui, radar at 10:50 a.m. indicated pockets of heavy rain over central and northeast Maui, from near Wailea to Wailuku, and from Kahului to Keʻanae.

The NWS forecast says rain was falling at a rate of 0.5 to 1 inches per hour, but is increasing in intensity. This is in addition to some of the locally heavy rainfall that fell over Maui last night.

Locations in the advisory include but are not limited to: Kahului, Kīhei, Lahaina, Kula, Pukalani, Makawao, Keōkea, Hāliʻimaile, Pāʻia, Puʻunēnē, Haʻikū-Paʻuwela, Wailea, Paʻuwela, Māʻalaea, ʻUlupalakua, Huelo, Mākena, Waikapū, Wailuku and Waiehu.

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